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6.b2 Better Place Forests Survey_Site PlanM N N M v O CL I I J � I I .0:11 CA I I 1I BIG MARINE LAKE OHWL 943.08 / /I I IIIIIIIIIIIII�,�� IIII//�, .,X Ig / 1 # 797 ,1 III �ERTY B00 �vr►� �a* /y NR �1\\ � I r l `� > ,\�\\%ll �/ t�� r 11 fr )z \ v1 \I\�.... \(� �.� \ \� ''� l\0MIllN Nl loo,/ �_. LEGEND \/ Ir � /l' —*L— WETLANDSI(rr, CICU I AVE �JI IVVL NJ`+. VU SLOPES GREAT THAN 25� /� ��`J )� 1.10 /( 0 ( ",\-\ x, J AYn UT DING PLA N - 1111( ENLARGEMENTS SEE C2-1 EXISTING CONDITIONS / DEMOLITION PLAN Fish Lake 0 200 i 400 SCALE IN FEET OA 1113 x 7 OA I 36"OA ' X14"OA I \ \ I\ \ I ' 110 14"OA \ 30"OA o OA ,5"OAj118 OA, _ _yam P / ) xZi g9� \ \� Q l I Q 14' OA + OA 15"0AQ/�+2 i \ \ \ \ 00 1P' / �/5''6A1 OA A I`'0p413'OA 16"O 0 OA,5"OA OAOA OAI ! 22"OA 0 \ \ \ \ \ 24"OA \\ \ \ 16"o 27 OA A , / n \ \ \ \ \ \ 5" `1 24'OA 10 OA \ \ \ \ \ 1 \ `4 pA . + °°1�\� 12'OA OA OA r I 11 i 1 1 I \ \\I 28'OA ` \ ►1 1 23' OA ` �\ \ \ 20"0� 18"OA \ \ ♦ `\ \\ 15'OA \ \ \ \ \ T 13"OA 00> ' \ 22"OA \ \ 110 5"` / 8"OA \ \I CIA x/003 \ \ \18 OA I I l 4 _ 22 OAC , + 16"OA \ \ \ \ I I I I 19"OA I P-7, 1 12''OA + A I 11"0A It+16 "OA I I 1\ I \ \\/ / I ISO �I x 11 II123"OA ' 8110AX / 23 OA +1,OA7 / + \I 1 OA �� I \ I rn 1 '� v �/ v �• 23OA 11 "OA 1 V\\ 1 1 I 12"OA _1002� �+ 22"� / / l I I 1 I I I 9 14110A - 26 OA 11 "OA \ 1 I \ \ I + 19"OA \ 1 I I 12 gk J \ \ 1 6x1 I I gg �� \ \ \ \ \ \ I I I 16"OA ' r x +\ I I 21 "OA I \\ \\ I \1 I 4 II OA rl \\ \ \ l a I, 1 \ 1 \ \ \ \ 1 1\ \ � / I Ikx \ \ I I 1 ' / 1 I I \ ,99ro 6 99I-0 IN, / / \\X%,1\ a 1 1 `� \ \ __� / / \ 0g ` IIII 11 x / 1 I` J �I l k ` -z- \ ( 0 40 8Q- ry` rn� I x 0� I LTJ j II I II ` I � ob/ / I I / / -5CALE IN \FFEET Ix 1117 N TREE REM -OVAL PLAN TREE PROTECTION NOTE: INSTALL SNOW FENCE AROUND EACH TREE TO BE PROTECTED PRIOR TO GRADING. FENCE SHALL BE PLACED AT THE DRIP EDGE OR CRITICAL ROOT ZONES OF THE TREES. FENCING SHALL BE NO CLOSER THAN 6' TO THE TRUNK OF ANY TREE TO BE PROTECTED. THE PERIMETERS FOR TREES BEING PROTECTED SHALL BE DESIGNATED AT ALL TIMES DURING CONSTRUCTION ACTIVITY AND SIGNAGE SHALL BE INSTALLED AT ALL TREE PROTECTION AREAS THAT INSTRUCTS WORKERS TO STAY OUT. CONTRACTOR SHALL AVOID ALL AREAS WITHIN TREE PROTECTION FENCE. SOIL SHOULD BE PROTECTED FROM EROSION AND CHANGES IN CHEMISTRY FROM CONCRETE OR TOXIC MATERIALS SUCH AS FUELS AND PAINTS. THE CONTRACTOR SHALL HAVE "TREE PAINT" ON SITE AT ALL TIMES. IF AN OAK IS WOUNDED DURING CONSTRUCTION, THE CONTRACTOR MUST IMMEDIATELY APPLY PAINT TO THE WOUND IN ORDER TO PREVENT OAK WILT. ALL DAMAGE TO TREES TO BE PROTECTED SHALL BE BROUGHT TO THE ATTFNTICIN C)F THF CIWNFR ANn I ANFISC'APF ARC'HITFC'T TREE PROTECTION SCALE 112" = V-0" EXISTING TREE TO REMAIN DRIP EDGE OF TREE 2" X 4" WOOD STAKE, POSITIONED AS NOTED. STRING 4' HIGH, ORANGE POLYETHYLENE LAMINAR SAFETY NETTING BETWEEN WOOD STAKES PLACED 5' ON CENTER AND PLACED BETWEEN TREE PROTECTION AND DISTURBED AREAS. EXISTING GRADE Tree Protection.DWG BASE FLOOD ELEVATIONS THE BASE FLOOD ELEVATIONS (FEMA MAP) LISTS AS FOLLOWS: FISH LAKE - 854.08* (FLOOD ZONE AE) BIG MARINE LAKE - 843.08* (FLOOD ZONE AE) *SURVEY PERFORMED WITH THE NGVD 28 ELEVATION DATUM. THE FEMA MAP LIST ELEVATIONS AS NAVD 88. THE DIFFERENCE IN ELEVATIONS IS +0.078. SITE DATA TOTAL SITE AREA 4,888,225 SF / 112.2 ACRES TOTAL DISTURBED AREA 75,450SF / 1.7 ACRES SOIL CONDITIONS AND TYPE DEMONTREVILLE SERIES: CONSISTS OF WELL DRAINED SOILS ON SAND CAPPED GROUND MORAINE. THESE SOILS FORMED IN A MODERATELY THICK SANDY MANTLE OF EOLIAN OR LACUSTRINE MATERIAL AND THE UNDERLYING LOAMU GLACIAL TILL. THEY HAVE RAPID PERMEABILITY IN THE UPPER SANDY MANTLE AND MODERATELY SLOW PERMEABILITY IN THE UNDERLYING GLACIAL TILL. SLOPE RANGES FROM 1 TO 25 PERCENT. LEGEND CONSTRUCTION / GRADING LIMITS t • S TREE TO BE RETAINED f TREE TO BE PROTECTED � SEE 1/C1-1 4% 10 xTREE TO BE REMOVED ER -OSI -ON CrJNTRDL SEE SHEETS 0-1 AND 0-2 CALL BEFORE YOU DIG! % Gopher State One Call TWIN CITY AREA: 651-454-0002 �a V TOLL FREE: 1-800-252-1166 THE CONTRACTOR SHALL BE RESPONSIBLE FOR CALLING FOR LOCATIONS OF ALL EXISTING UTILITIES. THEY SHALL COOPERATE WITH ALL UTILITY COMPANIES IN MAINTAINING THEIR SERVICE AND / OR RELOCATION OF LINES. THE CONTRACTOR SHALL CONTACT GOPHER STATE ONE CALL AT 651-454-0002 AT LEAST 48 HOURS IN ADVANCE FOR THE LOCATIONS OF ALL UNDERGROUND WIRES, CABLES, CONDUITS, PIPES, MANHOLES, VALVES OR OTHER BURIED STRUCTURES BEFORE DIGGING. THE CONTRACTOR SHALL REPAIR OR REPLACE THE ABOVE WHEN DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. '. Ln U C KS PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55368 763.424.5505 www.Ioucksinc.com CADD files prepared by the Consultant for this project are instruments of the Consultant professional services for use solely with respect to this project. These CADD files shall not be used on other projects, for additions to this project, or for completion of this project by others without written approval by the Consultant. With the Consultant's approval, others may be permitted to obtain copies of the CADD drawing files for information and reference only. All intentional or unintentional revisions, additions, or deletions to these CADD files shall be made at the full risk of that party making such revisions, additions or deletions and that party shall hold harmless and indemnify the Consultant from any & all responsibilities, claims, and liabilities. 04/14/2020 CITY SUBMITTAL I hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that I am a duly Licensed Landscape Architect under the laws of the State of Minnesota. Paul A. Kangas - LA License No. 26017 Date 04/14/2020 Loucks Project No. 20072 ZI PAK Drawn By GAJ W NN Review Date 04/14/2020 Zz\ I I J � I I .0:11 CA I I 1I BIG MARINE LAKE OHWL 943.08 / /I I IIIIIIIIIIIII�,�� IIII//�, .,X Ig / 1 # 797 ,1 III �ERTY B00 �vr►� �a* /y NR �1\\ � I r l `� > ,\�\\%ll �/ t�� r 11 fr )z \ v1 \I\�.... \(� �.� \ \� ''� l\0MIllN Nl loo,/ �_. LEGEND \/ Ir � /l' —*L— WETLANDSI(rr, CICU I AVE �JI IVVL NJ`+. VU SLOPES GREAT THAN 25� /� ��`J )� 1.10 /( 0 ( ",\-\ x, J AYn UT DING PLA N - 1111( ENLARGEMENTS SEE C2-1 EXISTING CONDITIONS / DEMOLITION PLAN Fish Lake 0 200 i 400 SCALE IN FEET OA 1113 x 7 OA I 36"OA ' X14"OA I \ \ I\ \ I ' 110 14"OA \ 30"OA o OA ,5"OAj118 OA, _ _yam P / ) xZi g9� \ \� Q l I Q 14' OA + OA 15"0AQ/�+2 i \ \ \ \ 00 1P' / �/5''6A1 OA A I`'0p413'OA 16"O 0 OA,5"OA OAOA OAI ! 22"OA 0 \ \ \ \ \ 24"OA \\ \ \ 16"o 27 OA A , / n \ \ \ \ \ \ 5" `1 24'OA 10 OA \ \ \ \ \ 1 \ `4 pA . + °°1�\� 12'OA OA OA r I 11 i 1 1 I \ \\I 28'OA ` \ ►1 1 23' OA ` �\ \ \ 20"0� 18"OA \ \ ♦ `\ \\ 15'OA \ \ \ \ \ T 13"OA 00> ' \ 22"OA \ \ 110 5"` / 8"OA \ \I CIA x/003 \ \ \18 OA I I l 4 _ 22 OAC , + 16"OA \ \ \ \ I I I I 19"OA I P-7, 1 12''OA + A I 11"0A It+16 "OA I I 1\ I \ \\/ / I ISO �I x 11 II123"OA ' 8110AX / 23 OA +1,OA7 / + \I 1 OA �� I \ I rn 1 '� v �/ v �• 23OA 11 "OA 1 V\\ 1 1 I 12"OA _1002� �+ 22"� / / l I I 1 I I I 9 14110A - 26 OA 11 "OA \ 1 I \ \ I + 19"OA \ 1 I I 12 gk J \ \ 1 6x1 I I gg �� \ \ \ \ \ \ I I I 16"OA ' r x +\ I I 21 "OA I \\ \\ I \1 I 4 II OA rl \\ \ \ l a I, 1 \ 1 \ \ \ \ 1 1\ \ � / I Ikx \ \ I I 1 ' / 1 I I \ ,99ro 6 99I-0 IN, / / \\X%,1\ a 1 1 `� \ \ __� / / \ 0g ` IIII 11 x / 1 I` J �I l k ` -z- \ ( 0 40 8Q- ry` rn� I x 0� I LTJ j II I II ` I � ob/ / I I / / -5CALE IN \FFEET Ix 1117 N TREE REM -OVAL PLAN TREE PROTECTION NOTE: INSTALL SNOW FENCE AROUND EACH TREE TO BE PROTECTED PRIOR TO GRADING. FENCE SHALL BE PLACED AT THE DRIP EDGE OR CRITICAL ROOT ZONES OF THE TREES. FENCING SHALL BE NO CLOSER THAN 6' TO THE TRUNK OF ANY TREE TO BE PROTECTED. THE PERIMETERS FOR TREES BEING PROTECTED SHALL BE DESIGNATED AT ALL TIMES DURING CONSTRUCTION ACTIVITY AND SIGNAGE SHALL BE INSTALLED AT ALL TREE PROTECTION AREAS THAT INSTRUCTS WORKERS TO STAY OUT. CONTRACTOR SHALL AVOID ALL AREAS WITHIN TREE PROTECTION FENCE. SOIL SHOULD BE PROTECTED FROM EROSION AND CHANGES IN CHEMISTRY FROM CONCRETE OR TOXIC MATERIALS SUCH AS FUELS AND PAINTS. THE CONTRACTOR SHALL HAVE "TREE PAINT" ON SITE AT ALL TIMES. IF AN OAK IS WOUNDED DURING CONSTRUCTION, THE CONTRACTOR MUST IMMEDIATELY APPLY PAINT TO THE WOUND IN ORDER TO PREVENT OAK WILT. ALL DAMAGE TO TREES TO BE PROTECTED SHALL BE BROUGHT TO THE ATTFNTICIN C)F THF CIWNFR ANn I ANFISC'APF ARC'HITFC'T TREE PROTECTION SCALE 112" = V-0" EXISTING TREE TO REMAIN DRIP EDGE OF TREE 2" X 4" WOOD STAKE, POSITIONED AS NOTED. STRING 4' HIGH, ORANGE POLYETHYLENE LAMINAR SAFETY NETTING BETWEEN WOOD STAKES PLACED 5' ON CENTER AND PLACED BETWEEN TREE PROTECTION AND DISTURBED AREAS. EXISTING GRADE Tree Protection.DWG BASE FLOOD ELEVATIONS THE BASE FLOOD ELEVATIONS (FEMA MAP) LISTS AS FOLLOWS: FISH LAKE - 854.08* (FLOOD ZONE AE) BIG MARINE LAKE - 843.08* (FLOOD ZONE AE) *SURVEY PERFORMED WITH THE NGVD 28 ELEVATION DATUM. THE FEMA MAP LIST ELEVATIONS AS NAVD 88. THE DIFFERENCE IN ELEVATIONS IS +0.078. SITE DATA TOTAL SITE AREA 4,888,225 SF / 112.2 ACRES TOTAL DISTURBED AREA 75,450SF / 1.7 ACRES SOIL CONDITIONS AND TYPE DEMONTREVILLE SERIES: CONSISTS OF WELL DRAINED SOILS ON SAND CAPPED GROUND MORAINE. THESE SOILS FORMED IN A MODERATELY THICK SANDY MANTLE OF EOLIAN OR LACUSTRINE MATERIAL AND THE UNDERLYING LOAMU GLACIAL TILL. THEY HAVE RAPID PERMEABILITY IN THE UPPER SANDY MANTLE AND MODERATELY SLOW PERMEABILITY IN THE UNDERLYING GLACIAL TILL. SLOPE RANGES FROM 1 TO 25 PERCENT. LEGEND CONSTRUCTION / GRADING LIMITS t • S TREE TO BE RETAINED f TREE TO BE PROTECTED � SEE 1/C1-1 4% 10 xTREE TO BE REMOVED ER -OSI -ON CrJNTRDL SEE SHEETS 0-1 AND 0-2 CALL BEFORE YOU DIG! % Gopher State One Call TWIN CITY AREA: 651-454-0002 �a V TOLL FREE: 1-800-252-1166 THE CONTRACTOR SHALL BE RESPONSIBLE FOR CALLING FOR LOCATIONS OF ALL EXISTING UTILITIES. THEY SHALL COOPERATE WITH ALL UTILITY COMPANIES IN MAINTAINING THEIR SERVICE AND / OR RELOCATION OF LINES. THE CONTRACTOR SHALL CONTACT GOPHER STATE ONE CALL AT 651-454-0002 AT LEAST 48 HOURS IN ADVANCE FOR THE LOCATIONS OF ALL UNDERGROUND WIRES, CABLES, CONDUITS, PIPES, MANHOLES, VALVES OR OTHER BURIED STRUCTURES BEFORE DIGGING. THE CONTRACTOR SHALL REPAIR OR REPLACE THE ABOVE WHEN DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. '. Ln U C KS PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55368 763.424.5505 www.Ioucksinc.com CADD files prepared by the Consultant for this project are instruments of the Consultant professional services for use solely with respect to this project. These CADD files shall not be used on other projects, for additions to this project, or for completion of this project by others without written approval by the Consultant. With the Consultant's approval, others may be permitted to obtain copies of the CADD drawing files for information and reference only. All intentional or unintentional revisions, additions, or deletions to these CADD files shall be made at the full risk of that party making such revisions, additions or deletions and that party shall hold harmless and indemnify the Consultant from any & all responsibilities, claims, and liabilities. 04/14/2020 CITY SUBMITTAL I hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that I am a duly Licensed Landscape Architect under the laws of the State of Minnesota. Paul A. Kangas - LA License No. 26017 Date 04/14/2020 Loucks Project No. 20072 Project Lead PAK Drawn By GAJ Checked By PAK Review Date 04/14/2020 C1-1 EXIST COND / DEMOLITION C2-1 LAYOUT /GRADING PLAN C3-1 SWPPP PLAN C3-2 SWPPP DETAILS C4-1 DETAILS I M N N M v -G 0 CL ol i /�/ -----� FUTUR&TRAIL CONNECTION T-) / °()J / 1 436 OA I / / + 17'OA go M M aft _40, 4Il\ X10 1.7 \ \ E F \ \ c \I % 1 \ x 16°� \ \t FUAJ E DRAINFIELD \ CATI.ONI , 1 3 OA 41#* I N � FUTURE TRAIL 15''OA � J all to 1\- CONNECTION 003.38 100. / ' , + Doti CM GR E P MEN i i I/ x LOCATION 99� FUTURE WELL I o /i/ \ , � // // \ � S I/ N EE C4-1 � \ � � ',00 1/3 \'00, \'I ` \ , 3.14 \ 24'OA ' 1003 1.® / X004 \ % % 1003.%65/ / 1°°1 I x / FUTUR ILDING - 1' / 100. 1002.9 / IN ES I G Q B + R3 I ETE E 22''A 1002.72 FFOA / x 9961 �D � F25 1/ x //�+ \ / 1002.J6 14OA + 1 1 \ �/ / \ 1 ° oA 28"OA \ \ // 20 OA 0 \ / \ \ 22'OA \ � \ GRAVEL PAVE T \ \ 1 I 1 \I • / 'I V03.27 ` SECTION -`5EE 4-1 418 oA \ 1 1 \ OA \+ \' \ U, I I I I 0'2.50/ °j \ \ \ \ \ \ 19"OA 2 "OA l \ \ \ I I I •/ / 1 1 \ //+ + 16 OA I I \ I I / 23 OA \ f ,S OA x 1 18'OA I tk \ I x OA + I '(3- \ / � A loo /j / / 1 18 oA / \ 1002 + 22 OA 1O OA \ GRAVEL PAVEMENT i/ // �� °o° \✓/ \ SECTION - FOLLOW ./ ALIGNMENT OF \ \ EXISTING TRAIL / \ SEE C4-1 I / +/9''OA I \ x 21 OA IOJ / \ \ 1 I \°° / \ x 110()01// ,/ \ SCALE IN FEET ATH /M LAY -OUT /GRADING PLAN ENLARGEMENT \ %\ l000 / \ \ 998- \ X996 xl gg / / .4111 INV W\3.3• a 1/ \ ell GRAVEL PAVEMENT SECTION - FOLLOW / ALIGNMENT OF EXISTING TRAIL SEE C4-1 / ATCHLINE A � X o'99 � 1 j/ \ \ /j/, I I NV,,9i4.0 / 12" HDPE CU'CVERT - 35" / / @ 2% SLOPE WITH CMP ° FLARED ENDS / RIPRAP SEE,C4-1 00, 1 / / / j• I I gg6 � \ 1000 9 / \ \ 988. /Zx / I x \ \ 1 '\ � 12" HDPE CU LV - 35' \ x // �O' INV 9 @ 2� SLOPE WITH, MID FLARED ENDS / RIPRAP SEE C4-1 j /01 / INV LIP A1. /\ --_�� // I / 1/0 16 /000 989.5 / '/ / j E -OF ATCHLINE B LAY -OUT /GRADING PLAN ENLARGEMENTS LEGEND EXISTING CONTOUR PRPOSED CONTOUR + 968.53 PROPOSED SPOT ELEVATION X.XX% PROPOSED SLOPE GRAVEL PAVEMENT SECTION - SEE C4-1 NATIVE SEED MIX - SHORT GRASS WOODS EDGE OR SAVANNA SEED MIX FROM PRAIRIE MOON NURSERY (1-866-417-8156) NATIVE SEED MIX - DETENTION BASIN SEED MIX FROM PRAIRIE MOON NURSERY (1-866-417-8156) ZCHLINE B �0 1 \ I .l j �/ I // /1<oI i n � \ _ 4 ,/ 994— / 993 x/ --_--N °ry a j 2 I / GRAVEL PAVEMENT SECTION - FOLLOW ALIGNMENT OF EXISTING TRAIL SE� C4-1 \\ "o" FUTURE �g9 //j SIGNAGE •/ $� x M CA -KI 0�I / x / x FZ1F F0F /"oo, LAY -OUT, GRADING AND SEEDING NATES SEE SHEET C4-1 :. L�ucKs PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com CADD files prepared by the Consultant for this project are instruments of the Consultant professional services for use solely with respect to this project. These CADD files shall not be used on other projects, for additions to this project, or for completion of this project by others without written approval by the Consultant. With the Consultant's approval, others may be permitted to obtain copies of the CADD drawing files for information and reference only. All intentional or unintentional revisions, additions, or deletions to these CADD files shall be made at the full risk of that party making such revisions, additions or deletions and that party shall hold harmless and indemnify the Consultant from any & all responsibilities, claims, and liabilities. 'i11:i1V41■Id\WINaV61[GL 1.7 04/14/2020 CITY SUBMITTAL I hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that I am a duly Licensed Landscape Architect under the laws of the State of Minnesota. Paul A. Kangas - LA License No. 26017 Date 04/14/2020 QUALITY CONTROL Loucks Project No. 20072 Project Lead PAK Drawn By GAJ Checked By PAK Review Date 04/14/2020 SHEETINDEX C1-1 EXIST COND / DEMOLITION C2-1 LAYOUT /GRADING PLAN C3-1 SWPPP PLAN C3-2 SWPPP DETAILS C4-1 DETAILS �7 M N O N M O N O CL ■ LnuCKS ■ LnuCKS RAINGARDEN SECTION: SANDY SOILS FINISHED GRADE 2" CLASS 2 MNDOT 3138 6" CLASS 5 UNDISTURBED OR COMPACTED SUBGRADE LOUCKS PLATE NO. GRAVEL PAVEMENT SECTION 1 2031 DRAWN 12/2016 GRAVEL PAVEMENT SECTION SEE C3-1 ENCASEMENT BEDDING NOTE: GRANULAR MATERIALS FURNISHED FOR USE IN FOUNDATION, BEDDING, ENCASEMENT, OR BACKFILL CONSTRUCTION SHALL CONFORM TO THE FOLLOWING REQUIREMENTS: • FOUNDATION MATERIALS SHALL HAVE 100 PASSING THE 1 1/2" SIEVE AND A MAXIMUM OF 10�L PASSING THE No. 4 SIEVE. NOT LESS THAN 50eL OF THE MATERIAL RETAINED BY THE No. 4 SIEVE SHALL HAVE ONE (1) OR MORE CRUSHED FACES. HARD, DURABLE CRUSHED CARBONATE QUARRY ROCK MAY BE USED FOR FOUNDATION MATERIALS. • BEDDING AND ENCASEMENT MATERIALS FOR FLEXIBLE PIPE SHALL MEET THE REQUIREMENTS OF MNDOT SPECIFICATION 3149.261, GRANULAR BORROW, EXCEPT THAT 100P/ SHALL PASS THE ONE INCH (1 ") SIEVE. • BACKFILL MATERIALS SHALL CONSIST OF SUITABLE EXISTING TRENCH MATERIALS, EXCEPT AS OTHERWISE SPECIFIED. SUITABLE MATERIAL SHALL BE DEFINED AS A MINERAL SOIL FREE OF FOREIGN MATERIALS (RUBBISH, ORGANICS & DEBRIS), FROZEN CLUMPS, OVERSIZE STONE, ROCK, CONCRETE OR BITUMINOUS CHUNKS, AND OTHER UNSUITABLE MATERIALS THAT MAY DAMAGE PIPE, PREVENT THOROUGH COMPACTION, OR INCREASE THE RISKS OF SETTLEMENT. LOUCKS PLATE NO. PLASTIC PIPE 4008 BEDDING DRAWN 2/2016 LAY -OUT NOTES 1. BACKGROUND INFORMATION IS BASED ON A FIELD SURVEY BY LOUCKS. 2. MINNESOTA STATE STATUTE REQUIRES NOTIFICATION PER "GOPHER STATE ONE CALL" PRIOR TO COMMENCING ANY GRADING, EXCAVATION OR UNDERGROUND WORK. 3. CONTRACTOR SHALL FIELD VERIFY LOCATIONS AND ELEVATIONS OF EXISTING UTILITIES AND TOPOGRAPHIC FEATURES PRIOR TO COMMENCEMENT OF CONSTRUCTION ACTIVITY. THE CONTRACTOR SHALL NOTIFY THE ENGINEER OF ANY DISCREPANCIES OR VARIATIONS FROM THE PLANS. 4. CONTRACTOR SHALL OBTAIN A COUNTY PERMIT FOR OBSTRUCTIONS AND WORK WITHIN RIGHT-OF-WAY. PERMIT IS REQUIRED PRIOR TO REMOVALS OR INSTALLATION. 5. ALL DIMENSIONS ARE SHOWN TO THE EDGE OF BITUMINOUS UNLESS OTHERWISE NOTED. GRADING NOTES BACKGROUND INFORMATION IS BASED ON A FIELD SURVEY BY LOUCKS. 1. THE CONTRACTOR SHALL TAKE ALL PRECAUTIONS NECESSARY TO AVOID PROPERTY DAMAGE TO ADJACENT PROPERTIES DURING THE CONSTRUCTION PHASE OF THIS PROJECT. THE CONTRACTOR WILL BE HELD RESPONSIBLE FOR ANY DAMAGES TO ADJACENT PROPERTIES OCCURRING DURING THE CONSTRUCTION PHASE OF THIS PROJECT. 2. IN ACCORDANCE WITH GENERALLY ACCEPTED CONSTRUCTION PRACTICES, THE CONTRACTOR WILL BE SOLELY AND COMPLETELY RESPONSIBLE FOR CONDITIONS ON THE JOB SITE, INCLUDING SAFETY OF ALL PERSONS AND PROPERTY DURING THE PERFORMANCE OF THE WORK. THIS REQUIREMENT WILL APPLY CONTINUOUSLY AND NOT BE LIMITED TO NORMAL WORKING HOURS. 3. BEFORE BEGINNING CONSTRUCTION THE CONTRACTOR SHALL INSTALL A TEMPORARY ROCK ENTRANCE PAD AT ALL POINTS OF VEHICLE EXIT FROM THE PROJECT SITE. SAID ROCK ENTRANCE PAD SHALL BE MAINTAINED BY THE CONTRACTOR FOR THE DURATION OF THE PROJECT. 4. EROSION AND SEDIMENTATION CONTROL MEASURES SHALL BE ESTABLISHED AROUND THE ENTIRE SITE PERIMETER AND IN ACCORDANCE WITH BEST MANAGEMENT PRACTICES, AND CITY REQUIREMENTS. 5. ALL SPOT ELEVATIONS SHOWN REPRESENT FINISHED SURFACE ELEVATIONS UNLESS OTHERWISE NOTED 6. CONTRACTOR TO VERIFY EXISTING INFORMATION PRIOR TO CONSTRUCTION AND NOTIFY ENGINEER OF ANY PLAN DISCREPANCIES. 7. GENERAL CONTRACTOR MUST VERIFY ALL TIE IN GRADES. ABBREVIATION LEGEND FFE=FINISHED FLOOR ELEVATION HP=HIGH POINT LP=LOW POINT SEEDING NOTES COORDINATE THE PHASES OF CONSTRUCTION AND SEED INSTALLATION WITH OTHER CONTRACTORS WORKING ON SITE. NO PLANTING WILL BE INSTALLED UNTIL COMPLETE GRADING AND CONSTRUCTION HAS BEEN COMPLETED IN THE IMMEDIATE AREA. SEED ALL AREAS DISTURBED DUE TO GRADING. NATIVE SEED SHALL BE SHORTGRASS WOODS EDGE OR SAVANNA MIX FROM PRAIRIE MOON NURSERY (866-417-8156) INSTALLED AT 9.64 LBS/ACRE. MULCH FOR TURF SEEDED AREAS SHALL BE TYPE 5 WOOD FIBER HYDROMULCH CONFORMING WITH MNDOT 3884. MULCH FOR SEEDED AREAS WITH SLOPES 15� OR GREATER SHALL BE MNDOT CATEGORY 1, STRAW RD 1S BLANKET CONFORMING WITH MNDOT 3885. CONTRACTOR SHALL SUBMIT A WRITTEN REQUEST FOR THE OWNER ACCEPTANCE INSPECTION OF ALL LANDSCAPE AND SITE IMPROVEMENTS. CONTRACTOR IS RESPONSIBLE FOR ON-GOING MAINTENANCE OF ALL NEWLY INSTALLED MATERIALS UNTIL TIME OF OWNER ACCEPTANCE. ANY ACTS OF VANDALISM OR DAMAGE WHICH MAY OCCUR PRIOR TO OWNER ACCEPTANCE SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR. CONTRACTOR SHALL PROVIDE THE OWNER WITH A MAINTENANCE PROGRAM INCLUDING, BUT NOT NECESSARILY LIMITED TO, PRUNING, FERTILIZATION AND DISEASE/PEST CONTROL. CONTRACTOR SHALL GUARANTEE NEW PLANT MATERIAL THROUGH ONE CALENDAR YEAR FROM THE DATE OF OWNER ACCEPTANCE. WARRANTY (ONE FULL GROWING SEASON) FOR LANDSCAPE MATERIALS SHALL BEGIN ON THE DATE OF ACCEPTANCE BY THE LANDSCAPE ARCHITECT AFTER THE COMPLETION OF PLANTING OF ALL LANDSCAPE MATERIALS. NO PARTIAL ACCEPTANCE WILL BE CONSIDERED. UNLESS NOTED OTHERWISE THE APPROPRIATE DATES FOR SPRING SEEDING IS FROM THE TIME GROUND HAS THAWED TO JUNE 15. FALL SEEDING FROM AUGUST 15 - SEPTEMBER 15; DORMANT SEEDING IN THE FALL SHALL NOT OCCUR PRIOR TO NOVEMBER 1. 1'(12"-27" DIA. PIPE) 1.5' (30" AND LARGER PIPE) RIPRAP-,,, 6" GRANULAR FILTER MATERIAL GEOTEXTILE FABRIC, TYPE IV SECTION B -B NOTE: ONE CUBI APPROXIN A L DIA. ■ LnuCKS GENERAL NOTES: Project Lead 1. INSTALL ALL TEMPORARY EROSION CONTROL MEASURES PRIOR TO THE START OF RCP QUANTITY (C.Y.) CMP/HDPE QUANTITY (C.Y.) ANY CONSTRUCTION OPERATION THAT MAY CAUSE ANY SEDIMENTATION OR 12 8 SILTATION AT THE SITE. 5 2. INSTALL STORM DRAIN INLET PROCTECTION TO PREVENT CLOGGING OF THE STORM 8 5 SEWER AND SEDIMENT LOADS TO DOWNSTREAM STORM WATER FACILITIES OR III 18 WATERBODIES. 6 3. IF THE STORM WATER BMP IS BEING DESIGNED TO SERVE AS A TEMPORARY 24 12 SEDIMENT BASIN, GRADE THE BMP TO WITHIN THREE (3) FEET OF FINAL GRADE TO PLANT MATERIAL TOLERANT OF III PROTECT THE UNDERLYING MATERIAL FROM CLOGGING. ONCE CONSTRUCTION IN INUNDATION AND DROUGHT. 12 THE CONTRIBUTING DRAINAGE AREA HAS BEEN COMPLETED AND THE SITE IS NATIVE PLANTS RECOMMENDED 36 STABILIZED, EXCAVATE THE RAINGARDEN TO FINAL GRADE AND COMPLETE SEE C2-1 17 CONSTRUCTION OF THE RAINGARDEN. 42 4. GRADING OF THE RAINGARDENS SHALL BE ACCOMPLISHED USING LOW -IMPACT 27 IV EARTH -MOVING EQUIPMENT TO PREVENT COMPACTION OF THE UNDERLYING SOILS. DEPTH REQUIRED TO DRAIN 26 SMALL TRACKED DOZERS AND BOBCATS WITH RUNNER TRACKS ARE PRACTICE IN 48 HOURS OR LESS, >48 RECOMMENDED. NOT TO EXCEED 18". 5. EXCAVATE THE RAINGARDEN TO THE SPECIFIED DEPTH (ELEVATION). ALL SUB MATERIAL BELOW THE SPECIFIED ELEVATION SHALL BE LEFT UNDISTURBED, UNLESS OTHERWISE DIRECTED BY THE ENGINEER. 6. GRADE TO THE DEPTH (ELEVATION) SPECIFIED IN THE CONSTRUCTION DOCUMENTS UNLESS OTHERWISE DIRECTED BY THE ENGINEER. PAVEMENT 7. IN THE EVENT THAT SEDIMENT IS INTRODUCED INTO THE BMP DURING OR IMMEDIATELY FOLLOWING EXCAVATION, THIS MATERIAL WILL NEED TO BE REMOVED RIBBON CURB FROM THE RAINGARDEN PRIOR TO INITIATING THE NEXT STEP IN THE RAINGARDEN 3H:1 L MAX. CONSTRUCTION PROCESS. THIS IS ESPECIALLY IMPORTANT IF THE RAINGARDEN HAS BEEN DESIGNED TO INFILTRATE STORM WATER: SEDIMENT THAT HAS BEEN WASHED INTO THE RAINGARDEN DURING THE EXCAVATION PROCESS CAN SEAL THE •r w IN 1/ii_ PERMEABLE MATERIAL, SIGNIFICANTLY REDUCING THE INFILTRATION CAPACITY OF If I I I -III- I THE SOILS. _ _ I -III- I _ I El III __ I - III _ 8. MATERIAL EXCAVATED FROM THE RAINGARDEN(S) SHALL BE DISPOSED OF ON-SITE -III -III _III -III -III -I I -I I I I I I -III I I -III I I_ AT LOCATIONS (STOCKPILE AREAS) DESIGNATED BY ENGINEER. -I -I -I 9. NON-STANDARD COMPONENT: CLEAN, WASHED 1 TO UNCH GRAVEL SHALL BE PRE-TREATMENT STRIP -III I -I I I -I I I- PLACED IN THE BOTTOM OF THE RAINGARDENS TO THE DEPTH SPECIFIED IN THE IIII I I I I I I I CONSTRUCTION DOCUMENTS. GRAVEL SHOULD BE PLACED IN LIFTS AND LIGHTLY -I -I COMPACTED WITH PLATE COMPACTORS UNDISTURBED, UNCOMPACTED -III--III-III-III- 10. NON-STANDARD COMPONENT: THE PERFORATED PIPE (UNDERDRAIN) SHALL BE LAID INSITU SOIL = I I I I I MI MI I-II DIRECTLY ON THE GRAVEL BED. GRADE AND ALIGNMENT SHALL NOT VARY FROM -III -I -III I I _-_-_-_-_-_ III-III- III -III -III -III -I I I THE PRESCRIBED GRADE BY MORE THAN 0.03 FEET (9 MM) AT ANY POINT. THE 3" SHREDDED WOOD MULCH � -- - I I � -III -III -III- I JOINTS BETWEEN SECTIONS OF PIPE SHALL BE CONNECTED IN A FASHION (MnDOT TYPE 6) III -III -I I -III I I- _I I I I III -III -III ACCEPTABLE TO ENGINEER. ONCE THE PIPE IS IN PLACE, IT SHALL BE COVERED -_= III I I I I I III- I -III-III IMMEDIATELY WITH GRANULAR MATERIAL AS SPECIFIED IN THE CONSTRUCTION RAINGARDEN BIOMEDIA: -I I -III DOCUMENTS. THE GRANULAR MATERIAL SHALL BE OF UNIFORM DEPTH ON BOTH 2" CERTIFIED ORGANIC SIDES OF THE PIPE. SPECIAL INLETS AND SPECIAL DEVICES AT THE OUTLET END OF COMPOST - MNDOT GRADE 2 BOTTOM SHALL BE GRADED THE PIPE SHALL BE CONSTRUCTED AS SHOWN IN THE PLANS. TILL IN 6" DEEP FLAT WITHOUT DIPS OR SWALES 11. RAINGARDEN SHALL BE OVER -EXCAVATED TO SPECIFIED DEPTH AND BACK FILLED WITH A WELL BLENDED MIXTURE OF 60-70P/ HOMOGENOUS CONSTRUCTION SAND, DECOMPACT SUBGRADE 20-306� MnDOT GRADE 2 COMPOST AND 10-206� NATIVE TOPSOIL BY VOLUME. MINIMUM 18" 12. PORTIONS OF RAINGARDENS TO BE PLANTED SHALL RECEIVE 3" OF SHEDDED WOODCHIP MULCH (MNDOT TYPE 6). 13. PORTIONS OF RAINGARDENS TO BE SEEDED SHALL BE MULCHED WITH CLEAN GRAIN STRAW (MNDOT TYPE 3) AT A RATE OF 2 TONS PER ACRE. 14. SEEDING AND INSTALLATION OF EROSION CONTROL BLANKET SHALL BE LOUCKS PLATE NO. ■ LnuCKS ■ LnuCKS RAINGARDEN SECTION: SANDY SOILS FINISHED GRADE 2" CLASS 2 MNDOT 3138 6" CLASS 5 UNDISTURBED OR COMPACTED SUBGRADE LOUCKS PLATE NO. GRAVEL PAVEMENT SECTION 1 2031 DRAWN 12/2016 GRAVEL PAVEMENT SECTION SEE C3-1 ENCASEMENT BEDDING NOTE: GRANULAR MATERIALS FURNISHED FOR USE IN FOUNDATION, BEDDING, ENCASEMENT, OR BACKFILL CONSTRUCTION SHALL CONFORM TO THE FOLLOWING REQUIREMENTS: • FOUNDATION MATERIALS SHALL HAVE 100 PASSING THE 1 1/2" SIEVE AND A MAXIMUM OF 10�L PASSING THE No. 4 SIEVE. NOT LESS THAN 50eL OF THE MATERIAL RETAINED BY THE No. 4 SIEVE SHALL HAVE ONE (1) OR MORE CRUSHED FACES. HARD, DURABLE CRUSHED CARBONATE QUARRY ROCK MAY BE USED FOR FOUNDATION MATERIALS. • BEDDING AND ENCASEMENT MATERIALS FOR FLEXIBLE PIPE SHALL MEET THE REQUIREMENTS OF MNDOT SPECIFICATION 3149.261, GRANULAR BORROW, EXCEPT THAT 100P/ SHALL PASS THE ONE INCH (1 ") SIEVE. • BACKFILL MATERIALS SHALL CONSIST OF SUITABLE EXISTING TRENCH MATERIALS, EXCEPT AS OTHERWISE SPECIFIED. SUITABLE MATERIAL SHALL BE DEFINED AS A MINERAL SOIL FREE OF FOREIGN MATERIALS (RUBBISH, ORGANICS & DEBRIS), FROZEN CLUMPS, OVERSIZE STONE, ROCK, CONCRETE OR BITUMINOUS CHUNKS, AND OTHER UNSUITABLE MATERIALS THAT MAY DAMAGE PIPE, PREVENT THOROUGH COMPACTION, OR INCREASE THE RISKS OF SETTLEMENT. LOUCKS PLATE NO. PLASTIC PIPE 4008 BEDDING DRAWN 2/2016 LAY -OUT NOTES 1. BACKGROUND INFORMATION IS BASED ON A FIELD SURVEY BY LOUCKS. 2. MINNESOTA STATE STATUTE REQUIRES NOTIFICATION PER "GOPHER STATE ONE CALL" PRIOR TO COMMENCING ANY GRADING, EXCAVATION OR UNDERGROUND WORK. 3. CONTRACTOR SHALL FIELD VERIFY LOCATIONS AND ELEVATIONS OF EXISTING UTILITIES AND TOPOGRAPHIC FEATURES PRIOR TO COMMENCEMENT OF CONSTRUCTION ACTIVITY. THE CONTRACTOR SHALL NOTIFY THE ENGINEER OF ANY DISCREPANCIES OR VARIATIONS FROM THE PLANS. 4. CONTRACTOR SHALL OBTAIN A COUNTY PERMIT FOR OBSTRUCTIONS AND WORK WITHIN RIGHT-OF-WAY. PERMIT IS REQUIRED PRIOR TO REMOVALS OR INSTALLATION. 5. ALL DIMENSIONS ARE SHOWN TO THE EDGE OF BITUMINOUS UNLESS OTHERWISE NOTED. GRADING NOTES BACKGROUND INFORMATION IS BASED ON A FIELD SURVEY BY LOUCKS. 1. THE CONTRACTOR SHALL TAKE ALL PRECAUTIONS NECESSARY TO AVOID PROPERTY DAMAGE TO ADJACENT PROPERTIES DURING THE CONSTRUCTION PHASE OF THIS PROJECT. THE CONTRACTOR WILL BE HELD RESPONSIBLE FOR ANY DAMAGES TO ADJACENT PROPERTIES OCCURRING DURING THE CONSTRUCTION PHASE OF THIS PROJECT. 2. IN ACCORDANCE WITH GENERALLY ACCEPTED CONSTRUCTION PRACTICES, THE CONTRACTOR WILL BE SOLELY AND COMPLETELY RESPONSIBLE FOR CONDITIONS ON THE JOB SITE, INCLUDING SAFETY OF ALL PERSONS AND PROPERTY DURING THE PERFORMANCE OF THE WORK. THIS REQUIREMENT WILL APPLY CONTINUOUSLY AND NOT BE LIMITED TO NORMAL WORKING HOURS. 3. BEFORE BEGINNING CONSTRUCTION THE CONTRACTOR SHALL INSTALL A TEMPORARY ROCK ENTRANCE PAD AT ALL POINTS OF VEHICLE EXIT FROM THE PROJECT SITE. SAID ROCK ENTRANCE PAD SHALL BE MAINTAINED BY THE CONTRACTOR FOR THE DURATION OF THE PROJECT. 4. EROSION AND SEDIMENTATION CONTROL MEASURES SHALL BE ESTABLISHED AROUND THE ENTIRE SITE PERIMETER AND IN ACCORDANCE WITH BEST MANAGEMENT PRACTICES, AND CITY REQUIREMENTS. 5. ALL SPOT ELEVATIONS SHOWN REPRESENT FINISHED SURFACE ELEVATIONS UNLESS OTHERWISE NOTED 6. CONTRACTOR TO VERIFY EXISTING INFORMATION PRIOR TO CONSTRUCTION AND NOTIFY ENGINEER OF ANY PLAN DISCREPANCIES. 7. GENERAL CONTRACTOR MUST VERIFY ALL TIE IN GRADES. ABBREVIATION LEGEND FFE=FINISHED FLOOR ELEVATION HP=HIGH POINT LP=LOW POINT SEEDING NOTES COORDINATE THE PHASES OF CONSTRUCTION AND SEED INSTALLATION WITH OTHER CONTRACTORS WORKING ON SITE. NO PLANTING WILL BE INSTALLED UNTIL COMPLETE GRADING AND CONSTRUCTION HAS BEEN COMPLETED IN THE IMMEDIATE AREA. SEED ALL AREAS DISTURBED DUE TO GRADING. NATIVE SEED SHALL BE SHORTGRASS WOODS EDGE OR SAVANNA MIX FROM PRAIRIE MOON NURSERY (866-417-8156) INSTALLED AT 9.64 LBS/ACRE. MULCH FOR TURF SEEDED AREAS SHALL BE TYPE 5 WOOD FIBER HYDROMULCH CONFORMING WITH MNDOT 3884. MULCH FOR SEEDED AREAS WITH SLOPES 15� OR GREATER SHALL BE MNDOT CATEGORY 1, STRAW RD 1S BLANKET CONFORMING WITH MNDOT 3885. CONTRACTOR SHALL SUBMIT A WRITTEN REQUEST FOR THE OWNER ACCEPTANCE INSPECTION OF ALL LANDSCAPE AND SITE IMPROVEMENTS. CONTRACTOR IS RESPONSIBLE FOR ON-GOING MAINTENANCE OF ALL NEWLY INSTALLED MATERIALS UNTIL TIME OF OWNER ACCEPTANCE. ANY ACTS OF VANDALISM OR DAMAGE WHICH MAY OCCUR PRIOR TO OWNER ACCEPTANCE SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR. CONTRACTOR SHALL PROVIDE THE OWNER WITH A MAINTENANCE PROGRAM INCLUDING, BUT NOT NECESSARILY LIMITED TO, PRUNING, FERTILIZATION AND DISEASE/PEST CONTROL. CONTRACTOR SHALL GUARANTEE NEW PLANT MATERIAL THROUGH ONE CALENDAR YEAR FROM THE DATE OF OWNER ACCEPTANCE. WARRANTY (ONE FULL GROWING SEASON) FOR LANDSCAPE MATERIALS SHALL BEGIN ON THE DATE OF ACCEPTANCE BY THE LANDSCAPE ARCHITECT AFTER THE COMPLETION OF PLANTING OF ALL LANDSCAPE MATERIALS. NO PARTIAL ACCEPTANCE WILL BE CONSIDERED. UNLESS NOTED OTHERWISE THE APPROPRIATE DATES FOR SPRING SEEDING IS FROM THE TIME GROUND HAS THAWED TO JUNE 15. FALL SEEDING FROM AUGUST 15 - SEPTEMBER 15; DORMANT SEEDING IN THE FALL SHALL NOT OCCUR PRIOR TO NOVEMBER 1. 1'(12"-27" DIA. PIPE) 1.5' (30" AND LARGER PIPE) RIPRAP-,,, 6" GRANULAR FILTER MATERIAL GEOTEXTILE FABRIC, TYPE IV SECTION B -B NOTE: ONE CUBI APPROXIN A L DIA. ■ LnuCKS U Ur,HINVLH r, FILTER MATERIAL SECTION A -A 11 RIPRAP 1' (12"-27" DIA. PIPE) 1.5' (30" AND LARGER PIPE) RANDOM / HAND PLACED RIPRAP GEOTEXTILE FABRIC, TYPE IV EXTEND 1' UNDER APRON LOUCKS PLATE NO. 4308 DRAWN 2/2016 :. LOUCKS PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com CADD files prepared by the Consultant for this project are instruments of the Consultant professional services for use solely with respect to this project. These CADD files shall not be used on other projects, for additions to this project, or for completion of this project by others without written approval by the Consultant. With the Consultant's approval, others may be permitted to obtain copies of the CADD drawing files for information and reference only. All intentional or unintentional revisions, additions, or deletions to these CADD files shall be made at the full risk of that party making such revisions, additions or deletions and that party shall hold harmless and indemnify the Consultant from any & all responsibilities, claims, and liabilities. 04/14/2020 CITY SUBMITTAL I hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that I am a duly Licensed Landscape Architect under the laws Df the State of Minnesota. Paul A. Kangas - LA License No. 26017 Date 04/14/2020 Loucks Project No. MINIMUM RIPRAP REQUIRED Project Lead DIA. OF PIPE (IN.) L (FT.) RCP QUANTITY (C.Y.) CMP/HDPE QUANTITY (C.Y.) CLASS 12 8 5 5 III 15 8 5 5 III 18 10 6 7 III 24 12 8 10 III 30 14 12 13 III 36 16 14 17 III 42 18 22 27 IV 48 20 26 32 IV >48 22-28 30-40 32-40 IV U Ur,HINVLH r, FILTER MATERIAL SECTION A -A 11 RIPRAP 1' (12"-27" DIA. PIPE) 1.5' (30" AND LARGER PIPE) RANDOM / HAND PLACED RIPRAP GEOTEXTILE FABRIC, TYPE IV EXTEND 1' UNDER APRON LOUCKS PLATE NO. 4308 DRAWN 2/2016 :. LOUCKS PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com CADD files prepared by the Consultant for this project are instruments of the Consultant professional services for use solely with respect to this project. These CADD files shall not be used on other projects, for additions to this project, or for completion of this project by others without written approval by the Consultant. With the Consultant's approval, others may be permitted to obtain copies of the CADD drawing files for information and reference only. All intentional or unintentional revisions, additions, or deletions to these CADD files shall be made at the full risk of that party making such revisions, additions or deletions and that party shall hold harmless and indemnify the Consultant from any & all responsibilities, claims, and liabilities. 04/14/2020 CITY SUBMITTAL I hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that I am a duly Licensed Landscape Architect under the laws Df the State of Minnesota. Paul A. Kangas - LA License No. 26017 Date 04/14/2020 Loucks Project No. 20072 Project Lead PAK Drawn By GAJ Checked By PAK Review Date 04/14/2020 C1-1 EXIST COND / DEMOLITION C2-1 LAYOUT/ GRADING PLAN C3-1 SWPPP PLAN C3-2 SWPPP DETAILS C4-1 DETAILS ro SWPPP NOTES 1. PROJECT DESCRIPTION THE NATURE OF THIS PROJECT WILL CONSIST OF CONSTRUCTING A GRAVEL ROAD AND PARKING SPOTS, AS WELL AS RAINGARDENS. THIS SITE IS LOCATED WITHIN A ONE MILE RADIUS OF THE MISSISSIPPI RIVER -AN IMPAIRED RIVER. 2. SEQUENCING OF MAJOR CONSTRUCTION ACTIVITIES ARE AS FOLLOWS: 1. INSTALL PROTECTIVE FENCE AROUND PERIMETER OF CONSTRUCTION AREA AND BASIN AREAS 2. CLEAR AND GRUB SITE 3. STRIP AND STOCKPILE TOPSOIL 4. REMOVE PAVEMENTS 5. ROUGH GRADE SITE 6. INSTALL UTILITIES 7. INSTALL GRAVEL 8. FINAL GRADE SITE 9. REMOVE ACCUMULATED SEDIMENT FROM BASINS 10. SEED AND MULCH 11. WHEN ALL CONSTRUCTION ACTIVITY IS COMPLETE AND THE SITE IS STABILIZED, REMOVE SILT FENCE AND RESEED ANY AREAS DISTURBED BY THE REMOVAL. 3. SITE DATA: AREA OF DISTURBANCE: 1.81 ± AC PRE -CONSTRUCTION IMPERVIOUS AREA: 0.20 AC TOTAL PROPOSED IMPERVIOUS AREA: 0.69 AC GENERAL SOIL TYPE: HSG A 4. THE LOCATION OF AREAS NOT TO BE DISTURBED MUST BE IDENTIFIED WITH FLAGS, STAKES, SIGNS, SILT FENCE, ETC. BEFORE CONSTRUCTION BEGINS. 5. ALL DISTURBED GROUND LEFT INACTIVE SHALL BE STABILIZED BY SEEDING OR SODDING (ONLY AVAILABLE PRIOR TO SEPTEMBER 15) OR BY MULCHING OR COVERING OR OTHER EQUIVALENT CONTROL MEASURE. STABILIZATION MUST BE INITIATED IMMEDIATELY AND COMPLETED WITHIN SEVEN (7) CALENDAR DAYS AFTER CONSTRUCTION ACTIVITY IN THAT PORTION OF THE SITE TEMPORARILY OR PERMANENTLY CEASES, STOCKPILING INCLUDED. 6. ON SLOPES 3:1 OR GREATER MAINTAIN SHEET FLOW AND MINIMIZE RILLS AND/OR GULLIES, SLOPE LENGTHS CAN NOT BE GREATER THAN 75 FEET. DENOTES SLOPES GREATER THAN 3:1. ALL 3:1 SLOPES TO BE STABILIZED WITH EROSION CONTROL BLANKET 7. ALL STORM DRAINS AND INLETS MUST BE PROTECTED UNTIL ALL SOURCES OF POTENTIAL DISCHARGE ARE STABILIZED. 8. TEMPORARY SOIL STOCKPILES MUST HAVE EFFECTIVE SEDIMENT CONTROL AND CAN NOT BE PLACED IN SURFACE WATERS OR STORM WATER CONVEYANCE SYSTEMS. TEMPORARY STOCKPILES WITHOUT SIGNIFICANT AMOUNT OF SILT, CLAY, OR ORGANIC COMPOUNDS ARE EXEMPT EX: CLEAN AGGREGATE STOCK PILES, DEMOLITION CONCRETE STOCKPILES, SAND STOCKPILES. 9. SEDIMENT LADEN WATER MUST BE DISCHARGED TO A SEDIMENTATION BASIN WHENEVER POSSIBLE. IF NOT POSSIBLE, IT MUST BE TREATED WITH THE APPROPRIATE BMPS. 10. SOLID WASTE MUST BE DISPOSED OF PROPERLY AND MUST COMPLY WITH MPCA DISPOSAL REQUIREMENTS. 11. THE WATERSHED DISTRICT OR THE CITY MAY HAVE REQUIREMENTS FOR INSPECTIONS OR AS -BUILT DRAWINGS VERIFYING PROPER CONSTRUCTION OF THE BMPS. 12. THE OWNER WHO SIGNS THE NPDES PERMIT APPLICATION IS A PERMITTEE AND IS RESPONSIBLE FOR COMPLIANCE WITH ALL TERMS AND CONDITIONS OF THE PERMIT. THE OPERATOR (CONTRACTOR) WHO SIGNS THE NPDES PERMIT APPLICATION IS A PERMITTEE FOR PARTS II.B., PART II.C, PART II.B-F, PART V, PART IV AND APPLICABLE CONSTRUCTION ACTIVITY REQUIREMENTS FOUND IN APPENDIX A, PART C. OF THE NPDES PERMIT AND IS JOINTLY RESPONSIBLE WITH THE OWNER FOR COMPLIANCE WITH THOSE PORTIONS OF THE PERMIT. 13. TERMINATION OF COVERAGE-PERMITTEE(S) WISHING TO TERMINATE COVERAGE MUST SUBMIT A NOTICE OF TERMINATION (NOT) TO THE MPCA. ALL PERMITTEE(S) MUST SUBMIT A NOT WITHIN 30 DAYS AFTER ONE OR MORE OF THE FOLLOWING CONDITIONS HAVE BEEN MET: A. FINAL STABILIZATION, PER NPDES PERMIT PART IV.G. HAS BEEN ACHIEVED ON ALL PORTIONS OF THE SITE FOR WHICH THE PERMITTEE IS RESPONSIBLE. B. TRANSFER OF OWNERSHIP AS DESCRIBED IN THE PERMIT. 15. INSPECTIONS A. INITIAL INSPECTION FOLLOWING SILT FENCE INSTALLATION BY CITY REPRESENTATIVE IS REQUIRED. B. EXPOSED SOIL AREAS: ONCE EVERY 7 DAYS AND WITHIN 24 HOURS FOLLOWING A 0.5" OVER 24 HOUR RAIN EVENT. C. STABILIZED AREAS: ONCE EVERY 30 DAYS D. FROZEN GROUND: AS SOON AS RUNOFF OCCURS OR PRIOR TO RESUMING CONSTRUCTION. E. INSPECTION AND MAINTENANCE RECORDS MUST BE RETAINED FOR 3 YEARS AFTER FILING OF THE NOTICE OF TERMINATION AND MUST INCLUDE: DATE AND TIME OF ACTION, NAME OF PERSON(S) CONDUCTING WORK, FINDING OF INSPECTIONS AND RECOMMENDATIONS FOR CORRECTIVE ACTION, DATE AND AMOUNT OF RAINFALL EVENTS GREATER THAN 0.5 INCHES IN A 24 HOUR PERIOD. 16. MINIMUM MAINTENANCE A. SILT FENCE TO BE REPAIRED, REPLACED, SUPPLEMENTED WHEN NONFUNCTIONAL, OR 1/3 FULL; WITHIN 24 HOURS B. SEDIMENT BASINS DRAINED AND SEDIMENT REMOVED WHEN REACHES 1/2 STORAGE VOLUME. REMOVAL MUST BE COMPLETE WITHIN 72 HOURS OF DISCOVERY. C. SEDIMENT REMOVED FROM SURFACE WATERS WITHIN MSEVEN DAYS D. CONSTRUCTION SITE EXITS INSPECTED, TRACKED SEDIMENT REMOVED WITH 24 HOURS. E. PROVIDE COPIES OF EROSION INSPECTION RESULTS TO CITY ENGINEER FOR ALL EVENTS GREATER THAN Y" IN 24 HOURS 17. THE SWPPP, INCLUDING ALL CHANGES TO IT, AND INSPECTIONS AND MAINTENANCE RECORDS MUST BE KEPT AT THE SITE DURING CONSTRUCTION ACTIVITY BY THE PERMITTEE(S) WHO HAVE OPERATIONAL CONTROL OF THE SITE. 18. OWNER MUST KEEP RECORDS OF ALL PERMITS REQUIRED FOR THE PROJECT, THE SWPPP, ALL INSPECTIONS AND MAINTENANCE, PERMANENT OPERATION AND MAINTENANCE AGREEMENTS, AND REQUIRED CALCULATIONS FOR TEMPORARY AND PERMANENT STORM WATER MANAGEMENT SYSTEMS. THESE RECORDS MUST BE RETAINED FOR THREE YEARS AFTER FILING NPDES NOTICE OF TERMINATION. 19. SWPPP MUST BE AMENDED WHEN: A. THERE IS A CHANGE IN DESIGN, OPERATION, MAINTENANCE, WEATHER OR SEASONAL CONDITIONS THAT HAS A SIGNIFICANT EFFECT ON DISCHARGE B. INSPECTIONS INDICATE THAT THE SWPPP IS NOT EFFECTIVE AND DISCHARGE IS EXCEEDING WATER QUALITY STANDARDS. C. THE BMPS IN THE SWPPP ARE NOT CONTROLLING POLLUTANTS IN DISCHARGES OR IS NOT CONSISTENT WITH THE TERMS AND CONDITIONS OF THE PERMIT. D. AT ANY TIME AFTER PERMIT COVERAGE IS EFFECTIVE, THE MPCA MAY DETERMINE THAT THE PROJECT'S STORMWATER DISCHARGES MAY CAUSE, HAVE REASONABLE POTENTIAL TO CAUSE, OR CONTRIBUTE TO NON -ATTAINMENT OF ANY APPLICABLE WATER QUALITY STANDARD, OR THAT THE SWPPP DOES NOT INCORPORATE THE APPLICABLE REQUIREMENTS IN PART III.A.8., (IMPAIRED WATERS AND TMDLS). IF A WATER QUALITY STANDARD CHANGES DURING THE TERM OF THIS PERMIT, THE MPCA WILL AKE A DETERMINATION AS TO WHETHER A MODIFICATION OF THE SWPPP IS NECESSARY TO ADDRESS THE NEW STANDARD. IF THE MPCA MAKES SUCH DETERMINATION (S) OR ANY OF THE DETERMINATIONS IN PARTS 111.13.1.-3., THE MPCA WILL NOTIFY THE PERMITTEE(S) IN WRITING. IN RESPONSE, THE PERMITTEE(S) MUST AMEND THE SWPPP TO ADDRESS THE IDENTIFIED CONCERNS AND SUBMIT INFORMATION REQUESTED BY THE MPCA, WHICH MAY INCLUDE AN INDIVIDUAL PERMIT APPLICATION. IF THE MPCA'S WRITTEN NOTIFICATION REQUIRES A RESPONSE, FAILURE TO RESPOND WITHIN THE SPECIFIED TIMEFRAME CONSTITUTES A PERMIT VIOLATION. 20. CONCRETE WASHOUT AREA A. CONTRACTOR TO PROVIDE PREFABRICATED CONCRETE WASH-OUT CONTAINER WITH RAIN PROTECTION PER PLAN. B. CONCRETE WASH-OUT TO BE IDENTIFIED WITH SIGNAGE STATING "CONCRETE WASHOUT AREA DO NOT OVERFILL" C. CONCRETE WASHOUT WATER NEEDS TO BE PUMPED WITHIN 24 HOURS OF STANDING WATER IN WASHOUT AREA. 21. IN THE EVENT OF ENCOUNTERING A WELL OR SPRING DURING CONSTRUCTION CONTRACTOR TO CEASE CONSTRUCTION ACTIVITY AND NOTIFY ENGINEER. 22. PIPE OULTETS MUST BE PROVIDED WITH TEMPORARY OR PERMANENT ENERGY DISSIPATION WITHIN 24 HOURS AFTER CONNECTION TO A SURFACE WATER. 23. FINAL STABILIZATION FINAL STABILIZATION REQUIRES THAT ALL SOIL DISTURBING ACTIVITIES HAVE BEEN COMPLETED AND THAT DISTURBED AREAS ARE STABILIZED BY A UNIFORM PERENNIAL VEGETATIVE COVER WITH 70% OF THE EXPECTED FINAL DENSITY, AND THAT ALL PERMANENT PAVEMENTS HAVE BEEN INSTALLED. ALL TEMPORARY BMP'S SHALL BE REMOVED, DITCHES STABILIZED, AND SEDIMENT SHALL BE REMOVED FROM PERMANENT CONVEYANCES AND SEDIMENTATION BASINS IN ORDER TO RETURN THE POND TO DESIGN CAPACITY. 24. TEMPORARY SEDIMENTATION BASINS A. THE TEMPORARY SEDIMENTATION BASINS SHALL BE CONSTRUCTED AND MADE OPERATIONAL PRIOR TO DISTURBANCE OF 10 OR MORE ACRES DRAINING TO A COMMON LOCATION. B. TEMPORARY SEDIMENTATION BASINS ARE REQUIRED PRIOR TO RUNOFF LEAVING THE CONSTRUCTION SITE OR ENTERING SURFACE WATERS WHEN 10 OR MORE ACRES OF DISTURBED SOILS DRAIN TO A COMMON LOCATION. THE BASIN MUST PROVIDE 3,600 CUBIC FEET OF STORAGE BELOW THE OUTLET PER ACRE DRAINED. IF HYDRAULIC CALCULATIONS ARE AVAILABLE, THE TEMPORARY SEDIMENTATION BASIN MUST PROVIDE A STORAGE VOLUME EQUIVALENT TO THE 2 -YEAR, 24-HOUR STORM, BUT IN NO CASE LESS THAN 1800 CUBIC FEET PER ACRE DRAINED. THE TEMPORARY SEDIMENTATION BASIN MUST BE CONSTRUCTED AND MADE OPERATIONAL CONCURRENT WITH THE START OF SOIL DISTURBANCE UP GRADIENT OF THE POND. THE TEMPORARY SEDIMENTATION BASIN SHALL BE DESIGNED TO PREVENT SHORT CIRCUITING. THE OUTFALL SHALL BE DESIGNED TO REMOVE FLOATABLE DEBRIS, ALLOW FOR COMPLETE DRAWDOWN OF THE POND FOR MAINTENANCE ACTIVITIES, AND HAVE ENERGY DISSIPATION. THE EMERGENCY SPILLWAY SHALL BE STABILIZED. C. TEMPORARY SEDIMENTATION BASINS SHALL BE SITUATED OUTSIDE OF SURFACE WATERS AND ANY REQUIRED BUFFER ZONE, AND MUST BE DESIGNED TO AVOID DRAINING WETLANDS, UNLESS THE IMPACT IS IN COMPLIANCE WITH THE REQUIREMENTS OF THIS PERMIT. D. EXCESSIVE SEDIMENT -LADEN WATER THAT IS NOT PROPERLY FILTERED WILL NOT BE PERMITTED TO DISCHARGE FROM SIRE. 25. DEWATERING AND BASIN DRAINING A. TURBID OR SEDIMENT -LADEN WATERS RELATED TO DEWATERING OR BASIN DRAINING SHALL BE DISCHARGED TO A TEMPORARY OR PERMANENT SEDIMENTATION BASIN ON THE PROJECT SITE UNLESS INFEASIBLE. THE TEMPORARY OR PERMANENT BASIN MAY DISCHARGE TO SURFACE WATERS IF THE BASIN WATER HAS BEEN VISUALLY CHECKED TO ENSURE ADEQUATE TREATMENT HAS BEEN OBTAINED IN THE BASIN AND THAT THE NUISANCE CONDITIONS WILL NOT RESULT FROM THE DISCHARGE. DISCHARGE POINTS SHALL BE ADEQUATELY PROTECTED FROM EROSION AND PROPER VELOCITY DISSIPATION PROVIDED. B. ALL WATER FROM DEWATERING OR BASIN -DRAINING ACTIVITIES MUST BE DISCHARGED IN A MANNER THAT DOES NOT CAUSE NUISANCE CONDITIONS, EROSION IN THE RECEIVING CHANNELS OR ON DOWN SLOPE PROPERTIES, OR INUNDATION IN WETLANDS CAUSING SIGNIFICANT ADVERSE IMPACTS TO THE WETLAND. C. IF FILTERS WITH BACKWASH WATERS ARE USED, THE BACKWASH WATER SHALL BE HAULED AWAY FOR DISPOSAL, RETURNED TO THE BEGINNING OF THE TREATMENT PROCESS, OR INCORPORATED INTO SITE IN A MANNER THAT DOES NOT CAUSE EROSION. BACKWASH WATER MAY BE DISCHARGED TO SANITARY SEWER IF PERMISSION IS GRANTED BY THE SANITARY SEWER AUTHORITY. MORE INFORMATION ON INFILTRATION DESIGN, PROHIBITIONS AND APPROPRIATE SITE CONDITIONS. 31. RESPONSIBILITIES A. THE OWNER MUST IDENTIFY A CONTRACTOR WHO WILL OVERSEE THE SWPPP IMPLEMENTATION AND THE PERSON RESPONSIBLE FOR INSPECTION AND MAINTENANCE: B. THE OWNER MUST IDENTIFY THE A PERSON WHO WILL BE RESPONSIBLE FOR LONG TERM OPERATIONS AND MAINTENANCE OF THE PERMANENT STORMWATER MANAGEMENT SYSTEM: 32. TRAINING REQEMENTS THE PERMITTES(S) SHALL ENSURE THE FOLLOWING INDIVIDUALS IDENTIFIED IN THIS PART HAVE BEEN TRIANED IN ACCORDANCE WITH THIS PERMIT'S TRAINING REQUIREMENTS. 1. WHO MUST BE TRAINED: A. INDIVIDUAL(S) PREPARING THE SWPP FOR THE PROJECT B. INDIVIDUAL(S) OVERSEEING IMPLEMENTATION OF, REVISING, AND AMENDING THE SWPPP AND INDIVIDUALS(S) PERFORMING INSPECTIONS AS REQUIRED IN PART IV.E. ONE OF THESE INDIVDUAL(S) MUST BE AVAILABLE FOR AN ONSITE INSPECTION WITHIN 72 HOURS UPON REQUEST BY THE MPCA. C. INDIVIDUAL(S) PERFORMING OR SUPERVISING THE INSTALLATION, MAINTENANCE AND REPAIR OF BMPS. AT LEAST ONE INDIVIDUAL ON A PROJECT MUST BE TRAINED IN THESE JOB DUTIES. 2. TRAINING CONTENT: THE CONTENT AND EXTENT OF TRAINING MUST BE COMMENSURATE WITH THE INDIVIDUAL'S JOB DUTIES AND RESPONSIBILITIES WITH REGARD TO ACTIVITIES COVERED UNDER THIS PERMIT FOR THE PROJECT. AT LEAST ONE INDIVIDUAL PRESENT ON THE PERMITTED PROJECT SITE (OR AVAILABLE TO THE PROJECT SIRE IN 72 HOURS) MUST BE TRAINED IN THE JOB DUTIES DESCRIBED IN PART III.F.1.13. AND PARTIII.F.1.C. 3. THE PERMITTEE(S) SHALL ENSURE THAT THE INDIVIDUALS ARE TRAINED BY LOCAL, STATE, FEDERAL AGENCIES, PROFESSIONAL OR OTHER ENTITIES WITH EXPERTISE IN EROSION PREVENTION, SEDIMENT CONTROL, PERMANENT STORMWATER MANAGEMENT AND THE MINNESOTA NPDES/SDS CONSTRUCTION STORMWATER PERMIT. AN UPDATE REFESHER-TRAINING MUST BE ATTENDED EVERY THREE (3) YEARS STARTING THREE (3) YEARS FROM THE ISSUANCE DATE OF THIS PERMIT. 33. LIST OF CONTACTS TILE NAME COMPANY PHONE NUMBER OWNER GAJ Checked By PAK PROJECT MANAGER PAUL KANGAS LOUCKS 763-496-6713 ENGINEER SWPPP VAL ANDERSON LOUCKS 763-496-6728 CONTRACTOR SITE MANGER * MPCA 24HR. HAZARDOUS SPILL HOTLINE: 651-649-5457 OF 80420798 26. POLLUTION PREVENTION A. BUILDING PRODUCTS THAT HAVE THE POTENTIAL TO LEACH POLLUTANTS MUST BE UNDER COVER TO PREVENT DISCHARGE OR PROTECTED BY AN EFFECTIVE MEANS DESIGNED TO MINIMIZE CONTACT WITH STORMWATER. B. PESTICIDES, HERBICIDES, INSECTICIDES, FERTILIZERS, TREATMENT CHEMICALS, AND LANDSCAPE MATERIALS MUST BE UNDER COVER. C. HAZARDOUS MATERIALS AND TOXIC WASTE MUST BE PROVIDED TO PREVENT VANDALISM. CONSTRUCTION STORMWATER SPECIAL WATERS SEARCH MAP D. SOLID WASTER MUST BE STORED, COLLECTED AND DISPOSED OF IN COMPLIANCE WITH MINN. R. CH 7035. E. PORTABLE TOILETS MUST BE POSITIONED SO THAT THEY ARE SECURE AND WILL NOT BE TIPPED OR KNOCKED OVER. SANITARY WASTE MUST BE DISPOSED OF PROPERLY IN ACCORDANCE WITH MINN. R. CH 7041. F. DISCHARGE OF SPILLED OR LEAKED CHEMICALS, INCLUDING FUEL, FROM ANY AREA WHERE PROJECT SITE CHEMICALS OR FUEL WILL BE LOADED OR UNLOADED SHALL BE PREVENTED USING DRIP PANS OR ABSORBENTS. SUPPLIES SHALL BE AVAILABLE AT ALL TIMES TO CLEAN UP DISCHARGED MATERIALS AND THAT AN APPROPRIATE DISPOSAL METHOD MUST BE AVAILABLE FOR RECOVERED SPILLED MATERIALS. 27. DESIGN CALCULATIONS TEMPORARY & PERMANENT STORMWATER TREATMENT ARE DESIGNED TO MEET MPCA GENERAL & SPECIAL WATER REQUIREMENTS. CALCULATIONS ARE PART OF THE HYDROLOGY REPORT, WHICH IS TO BE CONSIDERED PART OF THE SWPPP DOCUMENTS. SEE HYDROLOGY REPORT FOR ADDITIONAL INFORMATION. 28. GENERAL STORMWATER DISCHARGE REOUIREMENTS ALL REQUIREMENTS LISTED IN PART III OF THE PERMIT FOR DESIGN OF THE PERMANENT STORMWATER MANAGEMENT SYSTEM AND DISCHARGE HAVE BEEN INCLUDED IN THE PREPARATION OF THIS SWPP. THESE INCLUDE BUT ARE NOT LIMITED TO: A. THE EXPECTED AMOUNT, FREQUENCY, INTENSITY, AND DURATION PRECIPITATION B. THE NATURE OF STORMWATER RUNOFF AND RUN-ON AT THE SITE. C. PEAK FLOW RATES AND STORWATER VOLUMES TO MINIMIZE EROSION AT OUTLETS AND DOWNSTREAM CHANNEL AND STREAM BANK EROSION. D. THE RANGE OF SOIL PARTICLE SIZES EXPECTED TO BE PRESENT ON THE SITE. 29. CONSTRUCTION OF FILTRATION BASINS A. NO HEAVY TRAFFIC ON FILTRATION AREAS. CONSTRUCTION TO BE DONE WITH MINIMAL COMPACTION COMPACTION TO FILTRATION AREAS. IF COMPACTION IS ENCOUNTERED, BASIN SOILS FOR THE FIRST & MUST BE REMOVED & RELAID. B. INFILTRATION SYSTEMS MUST NOT BE EXCAVATED TO FINAL GRADE UNTIL THE CONTRIBUTING DRAINAGE AREA HAD BEEN CONSTRUCTED AND FULLY STABILIZED UNLESS RIGOROUS EROSION PREVENTION AND SEDIMENT CONTROLS ARE PROVIDED(PART III.D.1.C.). C. WHEN AN INFILTRATION SYSTEM IS EXCAVATED TO FINAL GRADE (OR WITHIN THREE (3) FEET OF FINAL GRADE), THE PERMITTEES) MUST EMPLOY RIGOROUS EROSION PREVENTION AND SEDIMENT CONTROLS (E.G., DIVERSION BERMS) TO KEEP SEDIMENT AND RUNOFF COMPLETELY AWAY FROM THE INFILTRATION AREA. THE AREA MUST BE STAKED OFF AND MARKED SO THAT HEAVY CONSTRUCTION VEHICLES OR EQUIPMENT WILL NOT COMPACT THE SOIL IN THE PROPOSED INFILTRATION AREA. D. TO PREVENT CLOGGING OF THE INFILTRATION OR FILTRATION SYSTEM, THE PERMITTEE(S) MUST USE A PRETREATMENT DEVICE SUCH AS A VEGETATED FILTER STRIP, SMALL SEDIMENTATION BASIN, OR WATER QUALITY INLET (E.G., GRIT CHAMBER) TO SETTLE PARTICULATES BEFORE THE STORMWATER DISCHARGES INTO THE INFILTRATION OF FILTRATION SYSTEM. 30. POST CONSTRUCTION THE WATER QUALITY VOLUME THAT MUST BE RETAINED ON SITE BY THE PROJECT'S PERMANENT STORMWATER MANAGEMENT SYSTEM DESCRIBED IN PART III.D. SHALL BE ONE (1) INCH OF RUNOFF FROM THE NEW IMPERVIOUS SURFACES CRATED BY THE PROJECT. SEE PART III.D.1. FOR r a Y Z i k - 18.1h 51 N CERTIFICATION off LAKE PAIRED W 7 16 Marine l ain Lake}, r D \y UNIVERSITY OF MINNESOTA Val Anderson �1"Izz - 6�2� Design of Construction SWPPP- 4",6 WIwi ri. ,N �4 Z F o OIL 4VI, Washington yaunty, MN, Esn Can2d1A(,R%F FiE, Gamun, INC% JEC il,_ BIG MARINE LAKE IMPAIRED WATER ER NOTES: 1. PLACE BOTTOM EDGE OF WIRE FENCE INTO 6 IN DEEP TRENCH. 2. POSTS SHALL BE: • 6 FT MAX. SPACING. • STANDARD STEEL T -TYPE POSTS. • 5' MIN. LENGTH POSTS, DRIVEN 2 FT INTO THE GROUND. 3. ATTACH WIRE FENCE TO STEEL POSTS WITH NO. 9 GA. ALUMINUM WIRE DR NO. 9 GALVANIZED STEEL PRE-FDRMED CLIPS. 4. ATTACH FABRIC TO WIRE FENCING WITH WIRE DR ZIP TIES. A MIN. OF 3 ZIP TIES PER POST. EXTEND BDTTDM DF FABRIC INTO TRENCH. 5. BACKFILL TRENCH & COMPACT. WIRE MESH STEAL FENCE POST G EDTEXTI LE FABRIC PER IN M N DDT 3886 WIRE MESH G EDTEXTI LE IN IN IN IN N,F�,�?� FABRIC PER MN DDT 3886 6„ 6° LrJUCKS PLATE NO. ■■ LOUCKS FENCE DUTY SILT 3001 FENCE DRAWN 12/2016 NOTES: 1. RDCK SIZE SHOULD BE 1" TO 2" IN SIZE SUCH AS MN/DDT CA -1 OR CA -2 COURSE AGGREGATE. (WASHED) 2. A GEOTEXTILE FABRIC MAY BE USED UNDER THE ROCK TO PREVENT MIGRATION OF THE UNDERLYING SOIL INTO THE STONE. ■■ DUCKS ROCK ENTRANCE TO CONSTRUCTION SITE LDUCKS PLATE NO. 3004 DRAWN 2/2016 i� LnuCKS PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com CADD files prepared by the Consultant for this project are instruments of the Consultant professional services for use solely with respect to this project. These CADD files shall not be used on other projects, for additions to this project, or for completion of this project by others without written approval by the Consultant. With the Consultant's approval, others may be permitted to obtain copies of the CADD drawing files for information and reference only. All intentional or unintentional revisions, additions, or deletions to these CADD files shall be made at the full risk of that party making such revisions, additions or deletions and that party shall hold harmless and indemnify the Consultant from any & all responsibilities, claims, and liabilities. 04/14/2020 CITY SUBMITTAL I hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that I am a duly Licensed Landscape Architect under the laws of the State of Minnesota. Paul A. Kangas - LA License No. 26017 Date 04/14/2020 Loucks Project No. 20072 Project Lead PAK Drawn By GAJ Checked By PAK Review Date 04/14/2020 C1-1 EXIST CDND / DEMDLITIDN C2-1 LAYOUT /GRADING PLAN C3-1 SWPPP PLAN C3-2 SWPPP DETAILS C4-1 DETAILS