9.i Pilar Road culvert replacement
Staff Report
Date of Meeting:
To: City Council
From: Adam Hawkinson, Director of Public Works
Re: Pilar culvert replacement - Failed
Background:
Pilar Rd. is a gravel road connection between Hwy 95 and Olinda Tr. which supplies access for
busses, residents, and other light commercial traffic. This spring staff received a call about a
sink hole in the road. The 15” metal culvert runs under Pilar Rd. east of 15261 Pilar Rd. N.
property. Upon further investigation it was clear that the metal culvert under the road had
failed on both the top and on the bottom of the structure. The ends are not rip rapped and
other construction details are not up to the City’s current engineering standards.
Issue:
Staff seeks approval for the culvert replacement project on Pilar Rd. located near 15261 Pilar
Rd. N.. One 15” RCP culvert apron is also needed for replacement of the damaged RCP along
188th St. from the ice pushing off Big Marine. For efficiency this pipe should be ordered at the
same time as the 18” RCP for the Pilar project.
Proposal Details:
Staff has received quotes from two RCP (Reinforced Concrete Pipe) pipe suppliers that provide
special pricing for government entities. The quotes are noted below. The contractors contacted
for the replacement quotes would prefer the city order the pipe at the discounted rate and
save money by having it delivered to the work site. The contractors have not submitted their
quotes to staff as of 5-14-19. They are provided with the RFQ’s with the standards and
expectations noted. Staff anticipates to have those figures ready for council approval on May
21st 2019.
Fiscal Impact:
Forterra: $3,487.40 + $275 shipping = $3,762.40
County: $3,528.60 – includes shipping
Roger Peterson: $ 17,736.76 - $6,666.56 = $11,070.20
Roger Rydeen: Declined 3-15-19 noting he was too busy
Options:
1.) Purchase the pipe and coordinate with the contractor with the low bid for installation
2.) Have contractor with the low bid supply all materials and perform the installation
Recommendation:
Staff recommendation is option #1
RCP Quotes:
Price for the materials is the following:
40’ of 18” CL5 - $28.95/lf = $1,158.00
2ea of 18” Aprons - $512/ea. = $1,024.00
1 – 15” Apron - $455/ea. = $455.00
12 - Joint Ties (Fasteners) = $55/ea. = $660.00
Total = $3,297.00
Prices include delivery and gaskets. It doesn’t include taxes.
If you need anything else, please let us know.
Also, I am sending you a copy of our price list. Let me know if you have any questions.
Carlos G Villarreal
Pipe Location Manager
1203 70th Ave. Roberts, WI 54023
Carlos.Villarreal@countymaterials.com
Attached to the is Quote:
1. PROJECT LOCATION FIGURE
2. SECTION 00415 - RESPONSIBLE CONTRACTOR - PROPOSAL ATTACHMENT
3. SECTION 00800 - INSURANCE REQUIREMENTS
4. SECTION 01555 - MAINTENANCE & CONTROL OF TRAFFIC
5. TECHINICAL SPECIFICATIONS: 02220, 02320, 02330, 02340, 02630, 02720, 02920
Items to be submitted with this quote:
1. Responsible Contractor Attachment
QUOTER agrees to perform all of the work described in the QUOTING DOCUMENTS for the following unit prices:
NOTE: Quotes shall include sales tax and all applicable taxes and fees.
Item Contract
No. Item Description Unit Quantity Amount
Base Bid:
1 Mobilization & Traffic Control LS 1
2 Remove Existing Culvert LF 44
3 Salvage and Reinstall Aggregate Surfacing SY 70
4 18" Reinforced Concrete Pipe, CL 5 LF 32
5 18" RCP Flared End Section EA 2
6 Subgrade Excavation (EV)CY 35
7 Geotextile Fabric, Type 5, Non-woven SY 70
8 Aggregate Base, Class 5 TN 70
9 Turf Restoration (Seed Mix 25-141, Fertilizer, Hydromulch) LS 1
Total Base Bid:
COMPANY NAME:
NAME AND TITLE (typed or printed):
SIGNATURE:
BUSINESS STREET ADDRESS:
PHONE:
DATE SUBMITTED:
QUOTER must fill in unit prices in numerals, make extension for each item, and total.
Unit price
QUOTE FORM
Pilar Road Culvert Replacement
City of Scandia, MN
SCANDIA, MN QUOTE FORM
STATE HWY 97
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2CSAH 3HWY 95220th ST N
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OLDFIELD AVE NST. CROIX TR N209TH
CITY HALL POMROY AVE NPEABODYTR NPI
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PILAR
RD N
OZARK AVEPENROSEAVENUE N215th ST NPENNFIELDAVE NPARRISHROAD N
.OLINDA LN N209th ST N ODELLPARI
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ODELL
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OZARK
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209TH
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NOREN213th
214thOLA
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AVEOLGILVIE AVE N223rd ST N PERKINSAVE N209th ST NQUADRANTAVE NQ
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N QUENTIN AVE NQUARRY AVE N235th
ST N
ST N
OAKHILLCT. N.H:\SCND\N15106565\Water Resources\Pilar Failed Culvert\Quote Package\Figure 1 - Location Plan.dwg 5/8/2019 3:08:51 PMPilar Road Culvert Replacement
City of Scandia, MN
Figure 1 - Location Plan
May 2019
R
FEETSCALE
0 1000 2000
HORZ.
PROJECT LOCATION
Replace Existing Culvert with
44' - 18" RCP (Incl. 2 FES)(OLINDA TR N)
City of Scandia, Minnesota RESPONSIBLE CONTRACTOR - PROPOSAL ATTACHMENT
Pilar Rd Culvert Replacement PAGE 00415-1
SECTION 00415 - RESPONSIBLE CONTRACTOR - PROPOSAL ATTACHMENT
Page 1 of 2
INITIAL CONTRACTOR VERIFICATION OF COMPLIANCE
By signing this document, I certify that I am an owner or officer of the company, and I swear under oath that:
My company meets each of the minimum criteria in subclauses (1) – (6) of Minn. Stat. § 16C.285, subd. 3,
the Responsible Contractor statute.
The undersigned understands that a failure to meet or verify compliance with the minimum criteria
established for a “responsible contractor” as defined in Minn. Stat. § 16C.285, subd. 3, renders a quoter
ineligible to be awarded a construction contract for the Project or to perform work on the Project.
The undersigned understands that a false statement under oath verifying compliance with any of the
minimum criteria shall make the undersigned, ineligible to be awarded a construction project and may
result in termination of a contract awarded to the undersigned. A contracting authority shall not be liable
for declining to award a contract or terminating a contract based on a reasonable determination that the
contractor failed to verify compliance with the minimum criteria or falsely stated that it meets the
minimum criteria.
The undersigned understands that, if the undersigned is the apparent low quoter, the undersigned will be
required to submit a supplemental verification under oath as a condition precedent to the execution of
the contract.
I have attached a list of all of my company’s first-tier subcontractors that I intend to retain for work on the
project.
Initial Contractor Verification of Compliance – Pilar Road Culvert Replacement
Authorized Signature of Owner or Officer:
Printed Name:
Title:
Date:
Company Name:
City of Scandia, Minnesota RESPONSIBLE CONTRACTOR - PROPOSAL ATTACHMENT
Pilar Rd Culvert Replacement PAGE 00415-2
SECTION 00415 - RESPONSIBLE CONTRACTOR - PROPOSAL ATTACHMENT
Page 2 of 2
SUBCONTRACTORS LIST
SUBCONTRACTOR NAMES
(Legal name of company as registered with the Secretary of State)
Name of City Where Company Home
Office is Located
Attach additional sheets if necessary.
Subcontractors List – Pilar Road Culvert Replacement
Authorized Signature of Owner or Officer:
Printed Name:
Title:
Date:
Company Name:
SECTION 00800 – INSURANCE REQUIREMENTS
1.01 Insurance—General Provisions
A.Owner and Contractor shall obtain and maintain insurance as required in this Article.
B.All insurance required by the Contract to be purchased and maintained by Owner or Contractor shall
be obtained from insurance companies that are duly licensed or authorized, in the state or
jurisdiction in which the Project is located, to issue insurance policies for the required limits and
coverages. All companies that provide insurance policies required under this Contract shall have an
A.M. Best rating of A-VII or better.
1.The coverage requirements for specific policies of insurance, including the requirements of SC
1.02.K.2.a, must be met by such policies, with exception that an Excess or Umbrella Liability
insurance policy may be used to supplement Contractor’s policy limits on a follow-form basis to
satisfy the full policy limits required by this Contract.
C.Contractor shall deliver to Owner, with copies to each named insured and additional insured (as
identified in this Article, or elsewhere in the Contract), certificates of insurance establishing that
Contractor has obtained and is maintaining the policies, coverages, and endorsements required by
the Contract. Upon request by Owner or any other insured, Contractor shall also furnish other
evidence of such required insurance, including but not limited to copies of policies and
endorsements, and documentation of applicable self-insured retentions and deductibles. Contractor
may block out (redact) any confidential premium or pricing information contained in any policy or
endorsement furnished under this provision.
D.Owner shall deliver to Contractor, with copies to each named insured and additional insured (as
identified in this Article or elsewhere in the Contract), certificates of insurance establishing that
Owner has obtained and is maintaining the policies, coverages, and endorsements required of Owner
by the Contract (if any). Upon request by Contractor or any other insured, Owner shall also provide
other evidence of such required insurance (if any), including but not limited to copies of policies and
endorsements, and documentation of applicable self-insured retentions and deductibles. Owner
may block out (redact) any confidential premium or pricing information contained in any policy or
endorsement furnished under this provision.
E.Failure of Owner or Contractor to demand such certificates or other evidence of the other party’s full
compliance with these insurance requirements, or failure of Owner or Contractor to identify a
deficiency in compliance from the evidence provided, shall not be construed as a waiver of the other
party’s obligation to obtain and maintain such insurance.
F.If either party does not purchase or maintain all of the insurance required of such party by the
Contract, such party shall notify the other party in writing of such failure to purchase prior to the
start of the Work, or of such failure to maintain prior to any change in the required coverage.
G.If Contractor has failed to obtain and maintain required insurance, Owner may exclude the
Contractor from the Site, and impose an appropriate set-off against payment.
H.Without prejudice to any other right or remedy, if a party has failed to obtain required insurance, the
other party may elect to obtain equivalent insurance to protect such other party’s interests at the
expense of the party who was required to provide such coverage, and the Contract Price shall be
adjusted accordingly.
I.Owner does not represent that insurance coverage and limits established in this Contract necessarily
will be adequate to protect Contractor or Contractor’s interests.
J.The insurance and insurance limits required herein shall not be deemed as a limitation on
Contractor’s liability under the indemnities granted to Owner and other individuals and entities in
the Contract.
1.02 Contractor’s Insurance
A.Workers’ Compensation: Contractor shall purchase and maintain workers’ compensation and
employer’s liability insurance for:
1.claims under workers’ compensation, disability benefits, and other similar employee benefit
acts.
2.United States Longshoreman and Harbor Workers’ Compensation Act and Jones Act coverage (if
applicable).
3.claims for damages because of bodily injury, occupational sickness or disease, or death of
Contractor’s employees (by stop-gap endorsement in monopolist worker’s compensation
states).
4.Foreign voluntary worker compensation (if applicable).
B.Commercial General Liability—Claims Covered: Contractor shall purchase and maintain commercial
general liability insurance, covering all operations by or on behalf of Contractor, on an occurrence
basis, against:
1.claims for damages because of bodily injury, sickness or disease, or death of any person other
than Contractor’s employees.
2.claims for damages insured by reasonably available personal injury liability coverage.
3.claims for damages, other than to the Work itself, because of injury to or destruction of tangible
property wherever located, including loss of use resulting therefrom.
C.Commercial General Liability—Form and Content: Contractor’s commercial liability policy shall be
written on a 1996 (or later) ISO commercial general liability form (occurrence form) and include the
following coverages and endorsements:
1.Products and completed operations coverage:
a.Such insurance shall be maintained for three years after final payment.
b.Contractor shall furnish Owner and each other additional insured, as identified, evidence
of continuation of such insurance at final payment and three years thereafter.
2.Blanket contractual liability coverage, to the extent permitted by law, including but not limited
to coverage of Contractor’s contractual indemnity obligations in Paragraph 7.18.
3.Broad form property damage coverage.
4.Severability of interest.
5.Underground, explosion, and collapse coverage.
6. Personal injury coverage.
7.Additional insured endorsements that include both ongoing operations and products and
completed operations coverage through ISO Endorsements CG 20 10 10 01 and CG 20 37 10 01
(together); or CG 20 10 07 04 and CG 20 37 07 04 (together); or their equivalent.
8.For design professional additional insureds, ISO Endorsement CG 20 32 07 04, “Additional
Insured—Engineers, Architects or Surveyors Not Engaged by the Named Insured” or its
equivalent.
D.Automobile liability: Contractor shall purchase and maintain automobile liability insurance against
claims for damages because of bodily injury or death of any person or property damage arising out
of the ownership, maintenance, or use of any motor vehicle. The automobile liability policy shall be
written on an occurrence basis.
E.Umbrella or excess liability: Contractor shall purchase and maintain umbrella or excess liability
insurance written over the underlying employer’s liability, commercial general liability, and
automobile liability insurance described in the paragraphs above. Subject to industry-standard
exclusions, the coverage afforded shall follow form as to each and every one of the underlying
policies.
F.Contractor’s pollution liability insurance: Contractor shall purchase and maintain a policy covering
third-party injury and property damage claims, including clean-up costs, as a result of pollution
conditions arising from Contractor’s operations and completed operations. This insurance shall be
maintained for no less than three years after final completion.
G.Additional insureds: The Contractor’s commercial general liability, automobile liability, umbrella or
excess, and pollution liability policies shall include and list as additional insureds Owner and Engineer,
and any individuals or entities identified; include coverage for the respective officers, directors,
members, partners, employees, agents, consultants, and subcontractors of each and any of all such
additional insureds; and the insurance afforded to these additional insureds shall provide primary
coverage for all claims covered thereby (including as applicable those arising from both ongoing and
completed operations) on a non-contributory basis. Contractor shall obtain all necessary
endorsements to support these requirements.
H.Contractor’s professional liability insurance: If Contractor will provide or furnish professional services
under this Contract, through a delegation of professional design services or otherwise, then
Contractor shall be responsible for purchasing and maintaining applicable professional liability
insurance. This insurance shall provide protection against claims arising out of performance of
professional design or related services, and caused by a negligent error, omission, or act for which
the insured party is legally liable. It shall be maintained throughout the duration of the Contract and
for a minimum of two years after Substantial Completion. If such professional design services are
performed by a Subcontractor, and not by Contractor itself, then the requirements of this paragraph
may be satisfied through the purchasing and maintenance of such insurance by such Subcontractor.
I.General provisions: The policies of insurance required by this Paragraph 1.02 shall:
1.include at least the specific coverages provided in this Article.
2.be written for not less than the limits of liability provided in this Article, or required by Laws or
Regulations, whichever is greater.
3.contain a provision or endorsement that the coverage afforded will not be canceled, materially
changed, or renewal refused until at least 10 days prior written notice has been given to
Contractor. Within three days of receipt of any such written notice, Contractor shall provide a
copy of the notice to Owner, Engineer, and each other insured under the policy.
4.remain in effect at least until final payment (and longer if expressly required in this Article) and
at all times thereafter when Contractor may be correcting, removing, or replacing defective
Work as a warranty or correction obligation, or otherwise, or returning to the Site to conduct
other tasks arising from the Contract Documents.
5.be appropriate for the Work being performed and provide protection from claims that may arise
out of or result from Contractor’s performance of the Work and Contractor’s other obligations
under the Contract Documents, whether it is to be performed by Contractor, any Subcontractor
or Supplier, or by anyone directly or indirectly employed by any of them to perform any of the
Work, or by anyone for whose acts any of them may be liable.
J.The coverage requirements for specific policies of insurance, including the requirements of SC
1.02.K.2.a, must be met by such policies, with exception that an Excess or Umbrella Liability insurance
policy may be used to supplement Contractor’s policy limits on a follow-form basis to satisfy the full
policy limits required by this Contract.
K. The limits of liability for the insurance required by Paragraph 1.02 shall provide coverage for not less
than the following amounts or greater where required by Laws and Regulations:
1.Workers’ Compensation, and related coverages under Paragraphs 1.02.A.1 and A.2:
State:Statutory
Federal, if applicable (e.g., Longshoreman’s):Statutory
Jones Act coverage, if applicable:
Bodily injury by accident, each accident $Not Applicable
Bodily injury by disease, aggregate $Not Applicable
Employer’s Liability:
Bodily injury, each accident $1,000,000.00
Bodily injury by disease, each employee $1,000,000.00
Bodily injury/disease aggregate $1,000,000.00
For work performed in monopolistic states, stop-gap liability
coverage shall be endorsed to either the worker’s compensation
or commercial general liability policy with a minimum limit of:$Not Applicable
Foreign voluntary worker compensation Statutory
2.Contractor’s Commercial General Liability under Paragraphs 1.02.B and 1.02.C:
General Aggregate $4,000,000.00
Products -Completed Operations Aggregate $4,000,000.00
Each Occurrence (Bodily Injury and Property Damage)$2,000,000.00
Personal and Advertising Injury $2,000,000.00
a.The aggregate limits under SC-1.02.K.2 (Commercial General Liability) be maintained fully
available for this Contract by obtaining and maintaining a Designated Construction Project
General Aggregate Limit endorsement, or equivalent
3.Automobile Liability under Paragraph 1.02.D.:
Combined Single Limit of $1,000,000.00
4.Excess or Umbrella Liability:
a.An Umbrella of excess policy may be used to supplement the Contractors’ policy limits on
a follow form basis to satisfy the full policy limits required by the contract.
5.Contractor’s Pollution Liability:
Per Occurrence $Not Applicable
General Aggregate $Not Applicable
If box is checked, Contractor is not required to provide Contractor’s Pollution Liability
insurance under this Contract
6.Contractor’s Professional Liability:
Each Claim $Not Applicable
Annual Aggregate $Not Applicable
1.03 Owner’s Liability Insurance
A.In addition to the insurance required to be provided by Contractor under Paragraph 1.02, Owner, at
Owner’s option, may purchase and maintain at Owner’s expense Owner’s own liability insurance as
will protect Owner against claims which may arise from operations under the Contract Documents.
B.Owner’s liability policies, if any, operate separately and independently from policies required to be
provided by Contractor, and Contractor cannot rely upon Owner’s liability policies for any of
Contractor’s obligations to the Owner, Engineer, or third parties.
1.04 Property Insurance
A.Notice of Cancellation or Change: All the policies of insurance (and the certificates or other evidence
thereof) required to be purchased and maintained in accordance with this Paragraph 1.04 will contain
a provision or endorsement that the coverage afforded will not be canceled or materially changed or
renewal refused until at least 10 days prior written notice has been given to the purchasing
policyholder. Within three days of receipt of any such written notice, the purchasing policyholder
shall provide a copy of the notice to each other insured.
B.Deductibles: The purchaser of any required insurance shall pay for costs not covered because of the
application of a policy deductible.
C.Additional Insurance: If Contractor elects to obtain other special insurance to be included in or
supplement the insurance policies provided under this Paragraph 1.04, it may do so at Contractor’s
expense.
D.Insurance of Other Property: If the express insurance provisions of the Contract do not require or
address the insurance of a property item or interest, such as tools, construction equipment, or other
personal property owned by Contractor, a Subcontractor, or an employee of Contractor or a
Subcontractor, then the entity or individual owning such property item will be responsible for
deciding whether to insure it, and if so in what amount.
1.05 Waiver of Rights
A.All policies purchased in accordance with Paragraph 1.04, expressly including the builder’s risk policy,
shall contain provisions to the effect that in the event of payment of any loss or damage the insurers
will have no rights of recovery against any insureds thereunder, or against Engineer or its consultants,
or their officers, directors, members, partners, employees, agents, consultants, or subcontractors.
Owner and Contractor waive all rights against each other and the respective officers, directors,
members, partners, employees, agents, consultants, and subcontractors of each and any of them,
for all losses and damages caused by, arising out of, or resulting from any of the perils or causes of
loss covered by such policies and any other property insurance applicable to the Work; and, in
addition, waive all such rights against Engineer, its consultants, all Subcontractors, all individuals or
entities identified as insureds, and the officers, directors, members, partners, employees, agents,
consultants, and subcontractors of each and any of them, under such policies for losses and damages
so caused. None of the above waivers shall extend to the rights that any party making such waiver
may have to the proceeds of insurance held by Owner or Contractor as trustee or fiduciary, or
otherwise payable under any policy so issued.
B.Owner waives all rights against Contractor, Subcontractors, and Engineer, and the officers, directors,
members, partners, employees, agents, consultants and subcontractors of each and any of them, for:
1.loss due to business interruption, loss of use, or other consequential loss extending beyond
direct physical loss or damage to Owner’s property or the Work caused by, arising out of, or
resulting from fire or other perils whether or not insured by Owner; and
2.loss or damage to the completed Project or part thereof caused by, arising out of, or resulting
from fire or other insured peril or cause of loss covered by any property insurance maintained
on the completed Project or part thereof by Owner during partial occupancy or use after
Substantial Completion
C.Any insurance policy maintained by Owner covering any loss, damage or consequential loss referred
to in Paragraph 1.05.B shall contain provisions to the effect that in the event of payment of any such
loss, damage, or consequential loss, the insurers will have no rights of recovery against Contractor,
Subcontractors, or Engineer, or the officers, directors, members, partners, employees, agents,
consultants, or subcontractors of each and any of them.
D.Contractor shall be responsible for assuring that the agreement under which a Subcontractor
performs a portion of the Work contains provisions whereby the Subcontractor waives all rights
against Owner, Contractor, all individuals or entities identified as insureds, the Engineer and its
consultants, and the officers, directors, members, partners, employees, agents, consultants, and
subcontractors of each and any of them, for all losses and damages caused by, arising out of, relating
to, or resulting from any of the perils or causes of loss covered by builder’s risk insurance and any
other property insurance applicable to the Work.
1.06 Receipt and Application of Property Insurance Proceeds
A.Any insured loss under the builder’s risk and other policies of insurance required by Paragraph 1.04
will be adjusted and settled with the named insured that purchased the policy. Such named insured
shall act as fiduciary for the other insureds, and give notice to such other insureds that adjustment
and settlement of a claim is in progress. Any other insured may state its position regarding a claim
for insured loss in writing within 15 days after notice of such claim.
B.Proceeds for such insured losses may be made payable by the insurer either jointly to multiple
insureds, or to the named insured that purchased the policy in its own right and as fiduciary for other
insureds, subject to the requirements of any applicable mortgage clause. A named insured receiving
insurance proceeds under the builder’s risk and other policies of insurance required by Paragraph
1.04 shall distribute such proceeds in accordance with such agreement as the parties in interest may
reach, or as otherwise required under the dispute resolution provisions of this Contract or applicable
Laws and Regulations.
C.If no other special agreement is reached, the damaged Work shall be repaired or replaced, the money
so received applied on account thereof, and the Work and the cost thereof covered by Change Order,
if needed.
City of Scandia, Minnesota MAINTENANCE AND CONTROL OF TRAFFIC
Pilar Rd Culvert Replacement PAGE 01555-1
SECTION 01555 - MAINTENANCE AND CONTROL OF TRAFFIC
PART 1 -- GENERAL
1.1 SUMMARY
A. Traffic Control
1. All traffic control methods shall conform to the provisions of the latest edition of the Minnesota
Manual of Uniform Traffic Control Devices (MN MUTCD), including its supplements and Part VI, "Field
Manual for Temporary Traffic Control Zone Layouts", the "Guide to Establishing Speed Limits in
Highway Work Zones", the Minnesota Flagging Handbook, the provisions of MnDOT 1404 and 1710, the
Minnesota Standard Signs Manuals Parts I and II, the Traffic Engineering Manual Chapter 8 Appendixes
8-8.02 and 8-8.03, the Traffic Control Layouts/Typical Traffic Control Layouts in the Plans.
2. The Contractor shall furnish, install, maintain and remove all traffic control devices including, but not
limited to, construction signs, barricades and barricade weights, traffic marking tape, and warning
lights which are needed for the guidance, warning and control of traffic adjacent to and through this
project.
3. The Contractor shall provide sufficient surveillance of the traffic control devices to insure compliance
during the entire construction period. The Contractor shall furnish names, addresses, and phone
numbers of at least two (2) local individuals capable of immediate response who will be responsible for
the site security and traffic control devices to:
The Engineer
The Owner
Local Law Enforcement Agencies
4. The Contractor shall respond with sufficient personnel, equipment and/or materials and conduct the
required work or be subject to a $ 100 per hour deduction from the time of notification for non-
attention to project security and safety.
5. The Contractor shall schedule the work to cooperate fully with residential and business property
owners abutting the project to minimize the time of restricted access to their property during the
construction period. Driveway access to any property adjacent to the construction zone shall be
restricted no more than seven days to allow for curing of the concrete curb and driveway pavement.
6. The cost of maintaining vehicular and pedestrian traffic on temporary aggregate surfaced drives,
walkways, including the eventual removal of the aggregate material, shall be considered incidental to
traffic control.
7. If it is necessary to enter upon a right-of-way controlled by the County or Minnesota Department of
Transportation, the Contractor shall notify the appropriate agency before commencing construction
within the right-of-way.
8. In the event that any of the above right-of-way require traffic to be detoured around the construction
zone, the Contractor shall prepare the detour route with the appropriate Agency representatives. The
Contractor shall provide and maintain all signing and other traffic control required. The affected
Agency shall be notified by the Contractor before re-routing traffic. Dust control and road maintenance
of the by-pass route shall be the Contractor's responsibility.
9. The Contractor shall be responsible for securing a site for storage of construction equipment and
materials.
B. General Construction and Traffic Requirements
1. The parking of Contractor's Vehicles that obstruct any traffic control devices will not be permitted.
City of Scandia, Minnesota MAINTENANCE AND CONTROL OF TRAFFIC
Pilar Rd Culvert Replacement PAGE 01555-2
1.2 METHOD OF MEASUREMENT AND PAYMENT
A. Mobilization/Traffic Control shall be measured by the LUMP SUM and paid in accordance with the following
schedule.
1. On the first partial estimate that shows work performed on at least one major contract item, 50
percent of the amount bid for Mobilization/Traffic Control will be paid.
2. On subsequent partial estimates, payment shall be made at the same percentage as the value of work
completed to date relative to the original Contract amount, except that payment shall not be reduced
from the original 50 percent. Materials on hand shall be excluded from the payment ratio
computation.
3. At such time that 95 percent of the original Contract amount is earned, full payment for
Mobilization/Traffic Control shall be made.
1.3 SPECIFICATION REFERENCES
MnDOT Specification Section 2021 shall apply to mobilization.
PART 2 -- PRODUCTS (NOT USED)
PART 3 -- EXECUTION
3.1 CONSTRUCTION REQUIREMENTS
A. The Contractor shall notify the Engineer in writing at least 72 hours prior to the start of any construction
operation that will necessitate lane closure or internal traffic control signing.
B. The traffic control devices required along the project corridor shall be delivered and installed prior to the
start-up of the work.
C. The Contractor shall maintain traffic through the intersections whenever possible.
D. The Contractor shall monitor and maintain all traffic control devices.
****END OF SECTION****
City of Scandia, Minnesota REMOVING PAVEMENT AND MISCELLANEOUS STRUCTURES
Pilar Rd Culvert Replacement PAGE 02220-1
SECTION 02220 - REMOVING PAVEMENT AND MISCELLANEOUS STRUCTURES
PART 1 -- GENERAL
1.1 SUMMARY
A. This section covers the furnishing of all labor, materials, tools, equipment and performances of all work and
services necessary or incidental to the removal of pavement and miscellaneous structures as indicated on
the drawings or as specified herein.
1.2 METHOD OF MEASUREMENT AND PAYMENT
A. Measurement and compensation for the following items shall be paid according to the referenced
specification or as modified below:
B. Bid Items have been provided for removal items. Payment at the Bid Unit Price will be considered
compensation in full for all Work necessary to complete the Bid Item in full, including removal, salvage,
storage, disposal, and reinstallation.
C. Measurement will be based upon the units as listed below for items removed, abandoned, or salvaged
complete as specified. No measurement will be made of any removals that are not required. The actual
quantity removed multiplied by the appropriate Bid Unit Price will be compensation in full for all Work and
costs of the following Bid Items:
1. Remove Existing Culvert: Per linear foot without regards to size and type, measured from center of
junction fittings, catch basins, or manholes, and will include the length of any aprons.
2. Salvage and Reinstall Aggregate Surfacing: Per square yard without regard to thickness.
D. The furnishing and installing of specific items and/or the performance of work under certain circumstances
shall not be individually paid in the absence of a specific bid item for the work. The costs shall be included
in the unit price bid for the associated removal and excavation items. Such items of work include but are
not limited to:
1. Off-site disposal of excess excavated material and debris.
2. Fees and permits for the disposal of materials.
3. Removal and disposal of existing storm sewer pipe.
4. Protection from damage of other surface improvements that are not to be removed, and subsequent
repair and/or replacement if damaged by Contractor operations.
1.3 SPECIFICATION REFERENCES
A. Unless noted otherwise, the provisions in this section are in addition to the referenced specification.
B. MnDOT 2104 shall apply to the removal of pavement and miscellaneous structures, except as modified
herein.
1.4 DEFINITIONS
A. Remove: To take away or eliminate from the Site by any method selected by the Contractor, including
disposal of material.
B. Salvage: To dismantle, disassemble, or remove carefully without damage so the item can be re-assembled,
replaced, or reused in a workable condition equal to that existing before removal.
1.5 SUBMITTALS
A. No exception to the referenced specification is made.
City of Scandia, Minnesota REMOVING PAVEMENT AND MISCELLANEOUS STRUCTURES
Pilar Rd Culvert Replacement PAGE 02220-2
PART 2 -- PRODUCTS
2.1 NO EXCEPTION TO THE REFERENCED SPECIFICATION IS MADE.
PART 3 -- EXECUTION
3.1 CONSTRUCTION REQUIREMENTS
A. Remove and salvage existing aggregate surfacing for reuse as required for the construction of the project.
B. Place and compact salvaged aggregate surfacing per Section 02720 – Aggregate Base.
C. Dispose of all removal items, rubbish and debris outside of the construction zone. It shall be the
Contractor's responsibility to secure all required permits and pay all fees associated with the disposal of the
material and to secure the disposal site.
D. Remove existing mailboxes, street/traffic signs and similar structures that must be removed to construct
the project. Restore these facilities to the original location or a location designated by the Owner, when
work has progressed past the location of the structure. The Contractor shall replace those structures which
are damaged or lost during the course of construction with new materials and components.
E. The Contractor shall take full responsibility to protect structures or other surface improvements from
damage that are not to be removed. If damage to these facilities occurs due to the construction of the
project, the Contractor shall replace or repair them.
F. In general all storm sewer pipe being removed and replaced by new improvements shall be considered as
debris and removed during the construction process.
G. Salvage and Reinstall:
1. Signs and Posts:
(a) Salvage and store signs, posts, foundations, and accessories where they are in conflict with the
Work.
(b) After completion of the Work, reinstall signs, posts, foundations, and accessories to the condition
existing prior to removal.
****END OF SECTION****
City of Scandia, Minnesota TRENCH EXCAVATION, BEDDING AND BACKFILL
Pilar Rd Culvert Replacement PAGE 02320-1
SECTION 02320 - TRENCH EXCAVATION, BEDDING AND BACKFILL
PART 1 -- GENERAL
1.1 SUMMARY
A. This section covers the furnishing of all labor, materials, tools, equipment and performances of all work and
services necessary or incidental to maintenance of utility service, trench excavation, bedding and backfill
necessary for the construction of underground utilities and structures, as indicated on the drawings or as
specified herein.
1.2 DEFINITIONS
A. Excess Material - Material that is not needed to complete the earthwork balance.
B. Suitable Material - Sand, silty sand or low plasticity clay soils with no organic content. The Engineer shall
make the final determination as to what material will be considered suitable.
C. Unsuitable Material - Soil with organic content including topsoil, swamp deposits, peat, muck, or other
material deemed by the Engineer to be unsuitable for fill or embankment construction.
D. Flexible Pipe Materials – For the purposes of this specification section, flexible pipe materials shall include
the following:
1. Polyvinyl chloride (PVC) pipe – solid wall and profile wall pipe.
2. Polypropylene profile wall pipe.
3. High density polyethylene pipe – solid wall and profile wall pipe.
4. Corrugated steel or aluminum pipe.
5. Centrifugally cast, glass-fiber-reinforced, polymer mortar (CCFRPM) pipe.
E. Rigid Pipe Materials – For the purposes of this specification section, rigid pipe materials shall include the
following:
1. Reinforced concrete pipe.
2. Reinforced concrete box culverts.
3. Ductile iron pipe.
1.3 METHOD OF MEASUREMENT AND PAYMENT
A. Measurement and compensation for the following items shall be paid according to the referenced
specification or as modified below:
1. Items specifically identified in the Schedule of Unit Prices will be compensated in accordance with the
description of measurement and payment contained in the section applicable to the individual item.
Otherwise, no direct compensation shall be granted for compliance with the provisions contained
herein.
B. The furnishing and installing of specific items and/or the performance of work under certain circumstances
shall not be individually paid in the absence of a specific bid item for the work. The costs shall be included
in the unit price bid for the individual pipeline items associated with the stated specific item or work effort.
Such items of work include but are not limited to:
1. Interference with other above and underground structures and utilities.
2. The removal and restoration, or protection of existing structures and utilities that are shown on the
plans and for which there is no bid item for removing and restoring, or working around the utility.
3. Unless separately itemized in the Schedule of Unit Prices, any dewatering necessary for construction.
City of Scandia, Minnesota TRENCH EXCAVATION, BEDDING AND BACKFILL
Pilar Rd Culvert Replacement PAGE 02320-2
4. Foundation materials placed in lieu of performing necessary dewatering.
5. Granular foundation, granular bedding and granular encasement materials.
6. Granular foundation materials used in lieu of bedding materials in the specified bedding zone, where
specified.
7. Granular foundation materials used in unstable trench conditions.
8. The removal and disposal of native materials that are unsuitable for bedding and/or backfill.
9. Providing and maintaining utility service.
10. The replacement of all material displaced due to shrinkage or loss during the excavation and backfilling
operations.
11. The removal of excess materials above the original topography resulting from the additional volume
created from pipe bedding, utility pipe, and/or underground structures.
12. Delays due to other utility conflicts that result during the course of construction.
13. Protecting existing improvements and previously accepted elements of this construction from damage.
14. Protecting the inverts of other utility pipes from the accumulation of debris and soil, the removal of
blockages that threaten to damage property, and/or the cleaning of both the newly constructed lines
and the existing lines of all debris and soil that accumulated during the construction.
15. If a separate bid item for bypass pumping is NOT included in the Schedule of Unit Prices, providing
temporary bypass pumping / control of storm water flows around the construction zone, shall be
included in the price bid for the associated items being installed.
16. The use of special construction techniques such as trench boxes, sheeting, shoring, etc., shall be
included in the price bid for the associated items being installed.
17. Compaction testing and compaction, if required, shall be included in the price bid for the associated
items being installed.
1.4 SPECIFICATION REFERENCES
A. Reference CEAM 2600 shall apply to excavating, installing bedding and backfilling all trench excavation
construction necessary for the completion of work, except as modified herein.
1. All references to MnDOT specifications shall mean the specific edition, including Supplemental
Specifications and Technical Memoranda as identified in Section 01420 “Specification Reference” of
this Project Manual.
2. CEAM 2600.3.A5 Removal of Surface Improvements - All rubble and debris to be disposed of off-site,
shall be disposed of at a location secured by the Contractor and in a manner in compliance with
applicable Local, State and Federal regulations.
3. CEAM 2600.3.B3 Excavation Limits and Requirements - OSHA limitations shall also apply to the top of
trench width determination. The 7-day written notice is waived if changing soil conditions and OSHA
compliance apply.
4. CEAM 2600.3.C Trenchless Pipe Installation is hereby deleted. If trenchless pipe installation is included
in this project, refer to applicable specification sections in these specifications
5. CEAM 2600.4 Method of Measurement Paragraphs B and C are hereby deleted. See applicable sections
of these Specifications.
6. CEAM 2600.5 Basis of Payment – The last three paragraphs of 2600.5 are hereby deleted. See
applicable sections of these Specifications.
B. MnDOT 2451 shall apply to granular materials for foundation, bedding and encasement of utility line
construction, except as modified herein.
City of Scandia, Minnesota TRENCH EXCAVATION, BEDDING AND BACKFILL
Pilar Rd Culvert Replacement PAGE 02320-3
C. Unless noted otherwise, the provisions in this section are in addition to the referenced specification.
1.5 SUBMITTALS
A. No exception to the referenced specification is made.
PART 2 -- PRODUCTS
2.1 GRANULAR MATERIALS
A. Granular Bedding and Granular Encasement - Bedding and granular encasement materials used in the pipe
zone area (6" below the pipe to 12" over the pipe) shall meet the same gradation and specification as
granular backfill, below.
B. Granular materials furnished for foundation, bedding, encasement, backfill, or other purposes as may be
specified shall consist of any natural or synthetic mineral aggregate such as sand, gravel, crushed rock,
crushed stone, or slag, that shall be so graded as to meet the gradation requirements specified herein for
each particular use by the material manufacturer or as indicated in the Plans.
C. Granular materials furnished for use in Foundation, Bedding, Encasement, or Backfill construction shall
conform to the following requirements:
1. Foundation materials shall have 100 percent by weight passing the 1-1/2 inch sieve and a maximum of
10 percent by weight passing the No. 4 sieve.
2. Backfill materials shall consist of existing trench materials, except as otherwise specified in this
specification.
3. Bedding and encasement materials for flexible pipe, where improved pipe foundation is not required,
shall meet the requirements of Mn/DOT Specification 3149.2B1, Granular Borrow, except that 100
percent by weight shall pass the one-inch sieve
D. Granular Backfill - Granular backfill material to be used above the pipe zone up to the top of subgrade if
unsuitable native material is encountered shall conform to MnDOT Specification 3138, Class 3, modified to
permit the following gradation limits. The use of the material shall be reviewed by the Engineer prior to the
installation of the material.
Sieve Size Percent Passing
1½” 100
# 4 35 - 100
# 10 20 - 80
# 40 5 - 40
# 200 0 - 15
E. A gradation report from an approved Independent Testing laboratory of the proposed granular materials
shall be furnished to the Engineer before any of the granular materials are delivered to the project.
F. Improved Pipe Foundation: Comply with MnDOT 3149.2.H. Modified
1. Crushing Requirement: At least 50% of the material retained on the No. 4 sieve shall have 1 or more
crushed faces.
G. Coarse Filter Aggregate: Shall be in accordance with MNDOT 3149.2.H
PART 3 -- EXECUTION
3.1 EXCAVATION AND PREPARATION OF TRENCH
A. Interference and Protection of Underground Structures
City of Scandia, Minnesota TRENCH EXCAVATION, BEDDING AND BACKFILL
Pilar Rd Culvert Replacement PAGE 02320-4
1. If an existing utility is shown on the plans and there is no bid item for removing and restoring, or
working around the utility, the Contractor shall be required to remove and restore, or protect the
utility.
2. The inverts of existing sewers (storm & sanitary), culverts, subdrains, etc. shall be protected during
construction. The Contractor is responsible to inspect and clean, if necessary, all lines which have
become compromised by the construction operations.
B. Excavation Limits and Requirements
1. The trench for all flexible pipe shall be undercut 6.0-inches below the pipe barrel to permit the
installation of granular bedding or foundation material.
2. The trench for all rigid pipe shall be undercut three-inches below the pipe barrel, or as shown in the
bedding detail, to permit the installation of granular bedding or foundation material.
3. The Contractor shall install and operate a dewatering system to maintain all trenches free of water
wherever necessary. The Contractor shall make his own subsurface investigations and determine what
dewatering methods to utilize to prevent such damage.
4. The Contractor shall be responsible for any damage to adjacent structures or buildings caused by the
dewatering operations
5. Use of granular foundation material in lieu of performing dewatering is permitted.
6. All excess excavated material shall become the property of the Contractor and shall be removed from
the site and disposed of at a location secured by the Contractor.
3.2 INSTALLATION OF PIPE AND FITTINGS
A. The Contractor shall keep accurate records as to the location of the service connections, field tile, utility
crossings, etc. either constructed or encountered during the construction Measurements to service lines
shall be taken from the two nearest permanent structures (i.e., hydrants, valves, manholes, buildings).
Final payment for the project will not be made until the information is in the possession of the Owner.
B. When connection to an existing conduit is required at an existing or proposed manhole, the Contractor shall
expose and verify the elevation of the existing conduit prior to laying any pipe toward, or away from, the
connection point. If the elevation of the existing conduit does not match the elevation shown on the plans,
the Contractor shall notify the Engineer, at which time the Engineer may adjust the proposed grades.
C. Sewer Pipe at Structures
1. The pipe end(s) shall be extended inside the structure a maximum of 3.0-inches unless approved
otherwise by the Engineer or shown on the plans.
D. Connection and Assembly of Joints
1. For storm sewers and subdrains, all joints shall not permit the intrusion of soil or backfill materials.
(a) If reinforced concrete pipe is used, the Contractor may at its own discretion choose to wrap each
joint with a geotextile filter fabric, as specified, rather than place mastic in the joint.
3.3 BEDDING AND BACKFILLING OPERATIONS
A. Backfill material around all manholes, catch basins, valve boxes, curb boxes, and hydrants shall be
compacted with hand machines. The maximum lift thickness shall be 6-inches.
B. Rigid Pipe Materials
1. Unless otherwise shown on the plans, in ordinary or stable trench conditions, the bottom of the trench
shall be first excavated to a depth of approximately 15 percent of the outside pipe diameter below the
established grade for the bottom of the pipe. Then the bottom of the trench shall be further excavated
to allow for the placement of 6.0-inches of granular bedding for a width of at least 60 percent of the
outside diameter of the pipe. Pipe shall be placed on the bottom of the pre-shaped excavated trench.
The bottom of the excavated trench shall be shaped to fit the circumference of the pipe up to 0.15 of
City of Scandia, Minnesota TRENCH EXCAVATION, BEDDING AND BACKFILL
Pilar Rd Culvert Replacement PAGE 02320-5
the outside diameter of the pipe. The Contractor shall encase the pipe from the 0.15 outside diameter
to the 0.60 diameter height of the pipe with granular material compacted to 95 percent Standard
Proctor Density or as recommended by the pipe manufacturer, whichever is denser.
2. Where the trench foundation has been found to be unstable and not suitable for bedding, the trench
shall be undercut until acceptable conditions are found. The Contractor shall then install compacted
foundation material to meet the line and grade specified on the plan.
3. Unless otherwise shown on the plans, select native material may be used as trench backfill above the
granular bedding up to the bottom of the subgrade except in those conditions where the top of the
pipe is less than 12.0-inches from the bottom of the subgrade in which case granular material
compacted to 100 percent Standard proctor Density shall be used as trench backfill the full width of the
trench to the bottom of the subgrade excavation zone.
C. Structures
1. All manholes, catch basins, valve boxes, water vaults, headwalls and miscellaneous structures shall be
backfilled with granular backfill material and shall be compacted with a hand operated motorized
compactor.
D. All trench backfill shall be compacted in accordance with the Specified Density Method:
1. Under areas with proposed paved or structural improvements:
(a) 100 percent Standard Proctor from the proposed pavement subgrade elevation down 3.0-feet.
(b) 95 percent Standard Proctor from the bottom of excavation up to 3.0-feet below the subgrade
elevation
2. Under areas with no proposed paved or structural improvements:
(a) 95 percent Standard Proctor
3.4 SOURCE QUALITY CONTROL
A. The Owner may arrange for having the following testing performed:
(a) One gradation test per each 500 tons or 275 cubic yards (CV) of granular material.
3.5 FIELD QUALITY CONTROL
A. The Owner may arrange for having the following testing performed:
1. One compaction test (including Standard Proctor) on subgrade per each 300 lineal feet of trench per
3.0-feet of depth
B. The Contractor shall cooperate fully with the individuals performing the tests.
C. Samples for testing shall be taken from material in place, in the trench at locations approved by the
Engineer. All sampling methods shall be approved by the Engineer.
D. Should any of the specified tests fail, the Contractor may arrange and pay for additional tests as may be
necessary to satisfy the Engineer that the requirements have been met.
***END OF SECTION***
City of Scandia, Minnesota EXCAVATION AND EMBANKMENT
Pilar Rd Culvert Replacement PAGE 02330-1
SECTION 02330 - EXCAVATION AND EMBANKMENT
PART 1 -- GENERAL
1.1 SUMMARY
A. This section covers the furnishing of all labor, materials, tools, equipment and performance of all work and
services necessary or incidental to the excavation and embankment for roadways and pavements as
indicated on the drawings or as specified herein.
1.2 METHOD OF MEASUREMENT AND PAYMENT
A. Measurement and compensation for the following items shall be paid according to the referenced
specification or as modified below:
1. Subgrade Excavation:
(a) All excavation directed by the Engineer below the common excavation zone or limits indicated in
the typical sections or cross sections in the plans shall be considered Subgrade Excavation.
(b) Measurement and payment for Subgrade Excavation will be by the CUBIC YARD, EXCAVATED
VOLUME - CY (EV) based on the dimensions of the excavated area.
(c) The quantities for Subgrade Excavation is strictly an estimate and may be increased or decreased
by any amount with no adjustment in unit price according to the conditions revealed.
2. Backfill for Subgrade Excavations:
(a) Payment for stabilizing aggregate, reclaimed bituminous/aggregate, or aggregate base used to
backfill subgrade excavations will be based on the unit of measure and the unit price bid for the
respective items.
(b) The quantities for materials used to backfill subgrade excavations are strictly estimates and may be
increased or decreased by any amount with no adjustment in unit price according to the conditions
revealed.
B. The furnishing and installing of specific items and/or the performance of work under certain circumstances
shall not be individually paid in the absence of a specific bid item for work. The costs shall be included in
the unit price bid for the associated excavation items. Such items of work include but are not limited to:
1. Disposal of aggregate surfacing material that is determined by the Engineer to be unsuitable for re-use.
2. Salvaging, separating, separately stockpiling and re-spreading topsoil material in turf areas to the
depths specified or indicated on the plans.
3. Salvaging and separately stockpiling suitable aggregate base material, as determined by the Engineer.
4. Separating, salvaging, stockpiling and replacing clay borrow in roadway, structure, and embankment
areas.
5. Earthwork balancing including adjustments for shrinkage loss, and excess materials resulting from the
additional volume created from pipe bedding, utility pipe, and/or underground structures shall be
included in the unit price bid for common excavation.
6. Protecting existing improvements and previously accepted in-process improvements from damage.
7. Protecting infiltration areas.
8. The avoidance of wetlands.
9. Subcutting the existing topsoil prior to placing embankment in all roadway, patio and trail locations.
10. Subgrade excavation, furnishing stabilizing aggregate, geotextile fabric installation, compaction,
regrading and/or other efforts necessary to repair the subgrade for failing to protect the integrity of
the subgrade after it has been accepted (test rolled).
City of Scandia, Minnesota EXCAVATION AND EMBANKMENT
Pilar Rd Culvert Replacement PAGE 02330-2
11. Gradation and compaction testing and geotechnical inspection services to meet requirements of source
and field quality control, if required
1.3 SPECIFICATION REFERENCES
A. MnDOT 2105 shall apply to excavation and embankment, except as modified herein.
B. MnDOT 2574 shall apply to excavation and embankment, except as modified herein.
C. Unless noted otherwise, the provisions in this section are in addition to the referenced specification.
PART 2 -- PRODUCTS
2.1 MATERIALS
A. All excess excavated material shall become the property of the Contractor and shall be removed from the
site and disposed of at a site secured by the Contractor.
B. Frozen material shall be considered unsuitable material unless otherwise authorized in writing by the
Engineer.
C. Excavated material unsuitable for embankment and backfill construction shall become the property of the
Contractor and shall be removed from the site and disposed of at a site secured by the Contractor.
D. Stabilizing aggregates for use in backfilling subgrade excavations shall be material generally produced and
referred to as Aggregate Base, Class 5 or other coarse aggregate found to be in general compliance by the
Engineer.
PART 3 -- EXECUTION
3.1 CONSTRUCTION REQUIREMENTS
A. At the end of each day the Contractor shall eliminate surface indentations, including those caused by
sheeps foot rollers, tractor tires and tracked equipment, and roll the surface with a steel wheel or rubber
tired roller except in those areas designated to be protected from compaction.
B. Subgrade excavation shall be performed, as directed by the Engineer, for the removal of any unstable soils
that may be encountered. Such excavation shall be backfilled with suitable excess common excavation
material or stabilizing aggregate as directed by the Engineer. If the Contractor proceeds without approval
from the Engineer or Owner, all work and material to restore the roadbed to the proper grade shall be at
the Contractor’s expense.
C. Once the subgrade has been successfully test rolled, no traffic or construction equipment shall be permitted
to operate directly on the subgrade without the prior approval of the Engineer. The subgrade shall be
relatively smooth prior to the placement of aggregate base. All equipment shall be restricted to operating
only in areas where the aggregate base has been installed to its full design depth.
D. Material suitable for curb backfill shall be segregated and stockpiled at a site selected by the Contractor.
Following curb construction, the material shall be placed behind the curb to the subgrade level of the
topsoil.
E. The Contractor shall salvage and stockpile all topsoil removed during the course of the construction. This
topsoil shall be used where required for turf establishment as directed by the Engineer.
F. Sufficient excavated material shall be utilized by the Contractor to replace loss volume due to soil shrinkage
from trench excavation that may occur through the course of construction. The Contractor shall make his
own determination of the amount of shrinkage that will occur.
G. All embankment shall be compacted using the Specified Density Method:
1. Under areas with proposed paved or structural improvements:
(a) 100 percent Standard Proctor from the proposed pavement subgrade elevation down 3.0-feet.
(b) 95 percent Proctor from the bottom of excavation up to 3.0-feet below the subgrade elevation.
City of Scandia, Minnesota EXCAVATION AND EMBANKMENT
Pilar Rd Culvert Replacement PAGE 02330-3
2. Under areas with no proposed paved or structural improvements:
(a) 95 percent Standard Proctor.
H. If the subgrade is unstable and the instability is due to excessive moisture, the subgrade shall be scarified
and dried over a reasonable time period. When the material has reached acceptable moisture limits, the
material shall be returned and compacted into place to the proper elevation. If the material continues to be
unstable, the Engineer may authorize the removal of the undesirable material as subgrade excavation.
3.2 SOURCE QUALITY CONTROL
A. The Owner may arrange for having the following testing performed:
1. Gradation tests of select granular borrow in accordance with the MnDOT Schedule of Materials
Control.
2. Gradation tests of stabilizing aggregate in accordance with the MnDOT Schedule of Materials Control.
Samples for testing shall be taken from material in stock at locations approved by the Engineer. All sampling
methods shall conform to MnDOT standards.
3.3 FIELD QUALITY CONTROL
A. "Blue top" stakes shall be provided by the Contractor at 100 foot intervals to confirm that the subgrade is
constructed to the required grades and elevations. Methods other than "blue top" staking may be allowed,
if approved by the Engineer.
B. The Owner may arrange for and pay all costs associated with having the following testing performed:
1. Compaction testing (including Standard Proctor) on subgrade in accordance with the MnDOT Schedule
of Materials Control.
C. All testing shall be performed by an independent testing laboratory approved by the Engineer.
D. The Contractor shall cooperate fully with the individuals performing the tests.
E. Samples for testing shall be taken from material in place, in the roadway at locations approved by the
Engineer. All sampling methods shall conform to MnDOT Standards.
F. Should any of the specified tests fail, the Contractor may arrange and pay for additional tests as may be
necessary to satisfy the specified requirements.
****END OF SECTION****
City of Scandia, Minnesota GEOTEXTILE FABRIC – ROAD CONSTRUCTION
Pilar Rd Culvert Replacement PAGE 02340-1
SECTION 02340 - GEOTEXTILE FABRIC - ROAD CONSTRUCTION
PART 1 -- GENERAL
1.1 SUMMARY
A. This section covers the furnishing of all labor, materials, tools, equipment and performances of all work and
services necessary or incidental to geotextile fabric - road construction as indicated on the drawings or as
specified herein.
1.2 METHOD OF MEASUREMENT AND PAYMENT
A. Measurement and compensation for the following items shall be paid according to the referenced
specification or as modified below:
1. Geotextile Fabric, Type 5, Non-woven shall be measured by the SQUARE YARD (SY) complete in place
and shall be paid at the unit price bid. Overlap of geotextile fabric in lieu of sewing will be incidental to
the unit price bid.
B. The furnishing and installing of specific items and/or the performance of work under certain circumstances
shall not be individually paid in the absence of a specific bid item for the work. The costs shall be included
in the unit price bid for the associated geotextile fabric - road construction items. Such items of work
include but are not limited to:
1. No exception to the referenced specification is made.
1.3 SPECIFICATION REFERENCES
A. Reference MnDOT Specification No. 3733 shall apply to the geotextile fabric, Type 5, except as modified
herein.
B. Unless noted otherwise, the provisions in this section are in addition to the referenced specification.
PART 2 -- PRODUCTS
2.1 MATERIALS
A. The fabric to meet the requirements of MnDOT 3733, Type 5 (Type V), non-woven.
2.2 SOURCE QUALITY CONTROL
A. The Contractor shall furnish certified copies of manufacturer's test results on geotextile samples indicating
conformance to the required specifications. The test results shall be furnished to the Engineer at least ten
(10) days prior to the intended installation date.
B. The Engineer may make random checks to assure compliance with the specifications.
C. Non-conforming products will be subject to rejection.
D. Approved materials will be accepted on the basis of brand name labeled on the geotextile itself or its
container.
City of Scandia, Minnesota GEOTEXTILE FABRIC – ROAD CONSTRUCTION
Pilar Rd Culvert Replacement PAGE 02340-2
PART 3 -- EXECUTION
3.1 CONSTRUCTION REQUIREMENTS
A. Prior to installing geotextile fabric, the prepared subgrade surface shall be relatively smooth and free of
stones, sticks or other debris or irregularities that could puncture the geotextile.
B. If multiple pieces of geotextile are required, adjacent strips shall be field or factory sewn with “J” stitching.
In lieu of sewing, an 18" strip overlap is permitted provided there is no potential for the geotextile strips to
separate.
C. Wrinkles and folds in the geotextile shall be removed by stretching and staking, as required.
D. The geotextile shall be secured to prevent displacement during subsequent operations.
E. No traffic or construction equipment will be permitted to operate directly on the geotextile.
F. Once the geotextile is placed and prior to the placing of aggregate cover, the Contractor shall allow the
Engineer sufficient time to conduct a personal observation of the geotextile to determine that no holes,
rips, tears or similar defects have occurred and that sewing/overlap have been properly installed. All
defects determined during the observation shall be patched or replaced prior to placing aggregate cover.
G. The aggregate cover shall be end dumped onto the geotextile. The initial deposit of material may be graded
to the design thickness but at no time shall equipment be allowed on the geotextile with less than eight (8)
inches of aggregate cover. Following compaction of the initial layer, all remaining material shall be placed
as specified.
H. Construction shall be conducted parallel to road alignment. Vehicular turning shall not be allowed on the
first lift of cover material, unless approved by the Engineer. All ruts that form during the construction shall
be immediately filled to maintain the minimum aggregate cover.
****END OF SECTION****
City of Scandia, Minnesota GEOTEXTILE FABRIC – ROAD CONSTRUCTION
Pilar Rd Culvert Replacement PAGE 02340-1
SECTION 02630 - PIPE SEWERS - STORM
PART 1 -- GENERAL
1.1 SUMMARY
A. This section covers the furnishing of all labor, materials, tools, equipment and performances of all work and
services necessary or incidental to storm sewer construction as indicated on the drawings or as specified
herein.
1.2 METHODS
A. Reference Section 02320 “Trench Excavation, Bedding and Backfill” of this Project Manual, except as
modified herein.
1.3 METHOD OF MEASUREMENT AND PAYMENT
A. Measurement and compensation for the following items shall be paid according to the referenced
specification or as modified below:
1. Storm Sewer Pipe
(a) 18” Reinforced Concrete Pipe shall be measured by the LINEAL FOOT (LF) of pipe furnished and
installed for the size, type, class, and regardless of depth and paid at the unit price bid.
2. Aprons
(a) 18“ RCP Flared End Section shall be measured by the EACH (EA) apron furnished and installed for
the size, type and class indicated and paid at the unit price bid.
B. The furnishing and installing of specific items and/or the performance of work under certain circumstances
shall not be individually paid in the absence of a specific bid item for the work. The costs shall be included
in the unit price bid for the storm sewer items, as indicated. Such items of work include but are not limited
to:
1. Use of geotextile fabric to wrap pipe joints in lieu of using mastic, include in the price bid for storm
sewer.
2. Maintenance of an appropriate storm water outlet during construction, include in the price bid for
storm sewer.
3. If a separate bid item for bypass pumping is NOT included in the Schedule of Unit Prices, providing
temporary bypass pumping / control of storm water flows around the construction zone, include in the
price bid for the associated sewer items.
1.4 SPECIFICATION REFERENCES
A. Reference Section 02320 “Trench Excavation, Bedding and Backfill” of this Project Manual.
B. CEAM 2621 shall apply to construction of pipe sewers, except as modified herein.
C. MnDOT 2503 shall apply to measurement and payment of pipe sewers, except as modified herein.
D. Unless noted otherwise, the provisions in this section are in addition to the referenced specification.
PART 2 -- PRODUCTS
2.1 OPEN CUT SEWER PIPE AND FITTINGS
A. All storm sewer pipe shall be reinforced concrete pipe, unless otherwise shown on the plans.
B. Reinforced Concrete Pipe (MnDOT 3236)
1. Reinforced Concrete Pipe (RCP), fittings and specials shall conform with the requirements of MnDOT
3236 (Reinforced Concrete Pipe) for the type, size and strength class specified. The joints for RCP shall
City of Scandia, Minnesota GEOTEXTILE FABRIC – ROAD CONSTRUCTION
Pilar Rd Culvert Replacement PAGE 02340-2
be rubber gasketed conforming to MnDOT Standard Plate 3006. Reinforced concrete pipe shall
conform to the following strength class, unless otherwise shown on the plans or these specifications.
(a) 12-inch to 18-inch – Class V
2.2 GEOTEXTILE FABRIC
A. MnDOT 3733, Type I, non-woven for use in wrapping joints in storm sewer.
PART 3 -- EXECUTION
3.1 REFERENCE SECTION 02320 “TRENCH EXCAVATION, BEDDING AND BACKFILL” OF THIS PROJECT MANUAL.
3.2 FIELD QUALITY CONTROL
A. Deflection test - No deflection testing is required.
****END OF SECTION****
City of Scandia, Minnesota AGGREGATE BASE
Pilar Rd Culvert Replacement PAGE 02720-1
SECTION 02720 - AGGREGATE BASE
PART 1 -- GENERAL
1.1 SUMMARY
A. This section covers the furnishing of all labor, materials, tools, equipment and performances of all work and
services necessary or incidental to construct the aggregate base course as indicated on the drawings or as
specified herein.
1.2 METHODS OF MEASUREMENT AND PAYMENT
A. Measurement and compensation for the following items shall be paid according to the referenced
specification or as modified below:
1. Aggregate Base, Class 5 shall be measured by TONS (TN) of material compacted in place as determined
from weight tickets delivered to the Engineer.
(a) If the aggregate base material is being wasted or placed excessively thick, the Owner reserves the
right to deduct quantities that are in excess of Drawing thickness. Said quantities shall be based on
material weighing 110 pounds per square yard of area per inch of thickness.
(b) Measurement includes placement of aggregate base under streets, driveways, walks, trails, and
curbs.
2. The quantities for aggregate base are strictly estimates and may be increased or decreased by any
amount with no adjustment in unit price according to the extent of aggregate base used to backfill
subgrade excavations and the extent of salvaged material available.
B. The furnishing and installing of specific items and/or the performance of work under certain circumstances
shall not be individually paid in the absence of a specific bid item for the work. The costs shall be included
in the unit price bid for the associated aggregate items. Such items of work include but are not limited to:
1. Protecting existing improvements and previously accepted in-process improvements from damage.
2. Subgrade excavation, furnishing stabilizing aggregate, geotextile fabric installation, compaction,
regrading and/or other efforts necessary to repair the subgrade after satisfying the rolling test and
failing to protect the integrity of the subgrade.
3. The cost of all labor, equipment and materials necessary for meeting the testing requirements of field
quality control, if required, include in price bid for Aggregate Base.
4. Furnishing and installing blue tops for gravel surface.
5. Test rolling of the compacted aggregate base using a fully loaded aggregate truck (tandem).
1.3 SPECIFICATION REFERENCES
A. MnDOT 2211 shall apply to the construction of aggregate base, except as modified herein.
B. Unless noted otherwise, the provisions in this section are in addition to the referenced specification.
PART 2 -- PRODUCTS
2.1 MATERIALS
A. Aggregate Base: Conforming to MnDOT Spec. 3138, Class 5 aggregate.
PART 3 -- EXECUTION
3.1 CONSTRUCTION REQUIREMENTS
A. At the end of each day the Contractor shall eliminate surface indentations, including those caused by
sheeps foot rollers and tractor cletes, and roll the surface with a steel wheel or rubber tired roller.
City of Scandia, Minnesota AGGREGATE BASE
Pilar Rd Culvert Replacement PAGE 02720-2
B. The depth and class of aggregate base to be constructed shall be as shown on the plans. Aggregate base
construction shall take place only after the street subgrade condition and grade has been examined by the
Engineer.
C. All aggregate base shall be compacted to 100 percent Standard Proctor Density using the Specified Density
Method.
3.2 SOURCE QUALITY CONTROL
A. The Contractor shall perform and pay for Contractor Quality Control Testing in accordance with the MnDOT
Schedule of Materials Control.
B. Samples for testing shall be taken from material in stock at locations approved by the Engineer. All sampling
methods shall be approved by the Engineer.
C. The Contractor shall cooperate fully with the individuals performing the tests.
D. The OWNER will arrange for and pay for Quality Assurance (QA) testing. Should any of the specified (QA)
tests fail, the Contractor shall pay for additional tests as may be necessary to satisfy the Engineer that the
requirements have been met. If the material is determined to be out of compliance with MnDOT 2211,
price reductions or material rejections will be implemented per MnDOT 2211.
3.3 FIELD QUALITY CONTROL
A. "Blue Top" stakes shall be provided by the Contractor at 50.0-foot intervals to confirm that the base is
constructed to the required grades and elevations. Methods other than "Blue Top" staking may be allowed,
if approved by the Engineer.
B. The Owner shall arrange for having the following testing performed:
1. Compaction tests (including Standard Proctor) in accordance with the MnDOT Schedule of Materials
Control.
C. All testing shall be performed by an independent testing laboratory.
D. The Contractor shall cooperate fully with the individuals performing the tests.
E. Samples for testing shall be taken from material in place, in the roadway. All sampling methods shall be in
accordance with the MnDOT Schedule of Materials Control.
F. Should any of the specified tests fail, the Contractor may arrange and pay for additional tests as may be
necessary to satisfy that the requirements have been met.
****END OF SECTION****
City of Scandia, Minnesota TURF RESTORATION
Pilar Rd Culvert Replacement PAGE 02920-1
SECTION 02920 - TURF RESTORATION
PART 1 -- GENERAL
1.1 SUMMARY
A. This section covers the furnishing of all labor, materials, tools, equipment and performances of all work and
services necessary or incidental to turf restoration as indicated on the drawings or as specified herein.
B. A variety of different seeding mixtures may be utilized on this project. The Contractor shall refer to the plan
for the locations of the different turf establishment areas.
C. Temporary seeding may be necessary during construction in erosion sensitive areas. The Contractor shall
do temporary seeding work as specified herein or as directed by the Engineer.
1.2 METHOD OF MEASUREMENT AND PAYMENT
A. Measurement and compensation for the following items shall be paid according to the referenced
specification or as modified below:
1. Payment for Seeding, Incl Seed Mix 25-141, Fertilizer, Hydraulic Mulch Matrix shall include the costs for
furnishing and placing the designated seed mixture, fertilizer and hydraulic mulch matrix at the rate
specified and shall be measured by the LUMP SUM.
B. The furnishing and installing specific items and/or the performance of work under certain circumstances
shall not be individually paid in the absence of a specific bid item for the work. The costs shall be included
in the unit price bid for the associated seeding and sodding items. Such items of work include but are not
limited to:
1. Application of starter fertilizer on all areas to be sodded shall be included in the price bid for sodding.
2. Subgrade preparation and topsoil placement as required on all areas shown on the plans.
3. Maintenance of newly sodded and seeded areas, as specified, include in the unit price for the
associated items.
4. Stapling of sod on sloped areas, include in the unit price bid for sodding.
1.3 SPECIFICATION REFERENCES
A. MnDOT 2574 - Soil Preparation
B. MnDOT 2575 - Establishing Turf and Controlling Erosion
C. MnDOT 3876 - Seed
D. MnDOT 3881 - Fertilizer
E. MnDOT 3884 - Hydraulic Erosion Control Products
F. Unless noted otherwise, the provisions in this section are in addition to the referenced specification.
PART 2 -- PRODUCTS
2.1 MATERIALS
A. Seeding
1. The seed mixture to be used is MnDOT Mix 25-141.
2. Unless otherwise specified on the plans, all application rates for MnDOT mixes, except temporary seed,
are 150 percent the specified rate.
3. Seed must be obtained from as close to the project site as reasonably possible with an emphasis on
obtaining seed from the local ecotype region.
City of Scandia, Minnesota TURF RESTORATION
Pilar Rd Culvert Replacement PAGE 02920-2
4. Source identified (Yellow tag) seed through the Minnesota Crop Improvement Association (MCIA)
unless otherwise approved by the Engineer.
5. All seed shall be supplied as pure-live seed (PLS).
6. All seed and seed mixes shall conform to State seed requirements for noxious weed content.
7. All seed and seed mixes shall conform to State labeling requirements. For all species in the mix, the
label and or invoice shall include the county of origin, and if from Canada, the province.
B. Fertilizer
1. The fertilizer used for this project shall be a commercial grade of Type 3 slow release complete fertilizer
applied at a rate of 60 lbs/acre at the time of preparing the seed bed for seeding. The fertilizer shall
contain a 10-10-10 (NPK) analysis.
C. Hydraulic Matrix (Hydromulch)
1. Conform to MnDOT Spec 3884.3.B.2 – Mulch.
2. Hydraulic Matrix Mulch shall be applied at a rate of 2100 lbs/acre (dry weight).
PART 3 -- EXECUTION
3.1 CONSTRUCTION REQUIREMENTS
A. GENERAL
1. The subgrade shall be shaped to the approximate contour of the finished surface. All construction
debris shall be removed from the area prior to the placement of the topsoil. The subgrade shall be
loosened with a disc or harrow to a depth of 6.0-inches prior to application of the topsoil.
2. The topsoil shall be shaped to the approximate contour of the finished surface, with a minimum depth
of 4.0-inches, unless otherwise shown on the plan. All construction debris, rocks and trash shall be
removed from the area prior to seeding or sodding. The topsoil shall be loosened with a disc or harrow
to its full depth prior to seeding or sodding.
3. The Contractor shall be responsible for providing water and maintenance for a period of 30 calendar
days, or until final acceptance by the Owner, to firmly establish the seed or sod. The term maintenance
shall include mowing, weed control and watering, as necessary. Failure to perform this work within
24-hours of notification of non-compliance may result in the Owner or Engineer arranging for
completion of the work by others. A contract deduction shall be made equal to the total of all costs to
perform such work so arranged, including but not limited to, labor, materials, equipment and
administrative costs.
4. Where dormant seeding or sodding is authorized, the maintenance period shall be extended to include
the first 30 calendar days after the beginning of the growing season. The beginning of growing season
shall be defined as bud burst.
B. SEEDING REQUIREMENTS
1. Turf establishment by seeding shall be done utilizing the various combinations of seed mixtures
(including aquatic plants), fertilizing and mulching at disturbed areas as shown on the plans.
2. Areas prepared for seeding shall be free of rocks, debris and clumps of soil. The areas shall be graded
uniformly and vegetated areas shall be raked free of chunks exceeding ½-inch diameter.
3. Seed shall be applied with a drill seeder, unless otherwise approved by the Owner.
4. The Contractor shall furnish weight tickets documenting pounds of hydraulic soil stabilizer placed,
pounds of fertilizer placed and pounds of seed placed. The seed tickets shall show individual plant
species along with the percent purity and percent germination. The fertilizer tickets shall show mix
proportions. The Contractor shall also furnish its QA/QC data to the Engineer.
City of Scandia, Minnesota TURF RESTORATION
Pilar Rd Culvert Replacement PAGE 02920-3
5. Dormant seeding and snow seeding may be utilized in accordance with the referenced specification
and technical memorandum, provided the final acceptance standards are met.
6. Final acceptance of seeding shall be based on an established growth of 6.0-inches with a uniform
density to cover 70 percent of the designated area, free of weeds and bare spots. Any re-seeding
necessary shall be performed at the Contractor's expense.
****END OF SECTION****