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HomeMy WebLinkAbout6.h. Approve Stormwater Maintenance Agreement - Rich Valley 1st Addition\\Rsm-file\Common\City Clerk\Agenda Items\Approved Items\6.h. Approve Stormwater Maintenance Agreement - Rich Valley 1st Addition (Scannell-FedEx).docx EXECUTIVE SUMMARY City Council Regular Meeting: September 20, 2022 AGENDA ITEM: Approve a Stormwater Maintenance Agreement for Rich Valley 1st Addition (Scannell-FedEx site) AGENDA SECTION: Consent PREPARED BY: Nick Egger, PE – Public Works Director AGENDA NO. 6.h. ATTACHMENTS: Stormwater Maintenance Agreement – Rich Valley 1st Addition (Scannell Properties) APPROVED BY: LJM RECOMMENDED ACTION: Motion to approve a Stormwater Maintenance Agreement with Scannell Properties for the Rich Valley 1st Addition BACKGROUND Scannell Properties is currently conducting mass grading activity on the former Rich Valley Golf Course site to reshape the land and develop support infrastructure for a new FedEx distribution facility and other future users. Part of the infrastructure being developed to serve the site includes stormwater drainage basins to detain, treat, infiltrate, and discharge stormwater generated by the site’s impervious surfaces. With several of the new stormwater facilities being solely for handling runoff from only the property, it is necessary to execute a stormwater maintenance agreement between the City and the owner that will bind the owner to ensuring that routine maintenance best management practices are being conducted throughout time. Scannell Properties and any assignees of the agreement will be responsible for conducting the best management practices, for keeping records of activity, and for reporting those records to the City on an annual basis to allow the City to verify compliance with the agreement. The attached agreement, developed from a template generated by the City Attorney’s office and refined to speak to the specifics of the property itself, is attached for Council approval. RECOMMENDATION Staff recommends City Council approves the attached Stormwater Maintenance Agreement with Scannell Properties and authorizes the Mayor and City Clerk to sign to the agreement. 1 RS220\427\820916.v1 STORMWATER MAINTENANCE AGREEMENT THIS AGREEMENT (the “Agreement”) is made and entered into as of the ____ day of _________, 2022, by and between the city of Rosemount, a Minnesota municipal corporation (the “City”) and Scannell Properties #527, LLC, an Indiana limited liability company (the “Developer”). WITNESSETH: WHEREAS, the Developer is the fee owner of Lot 1, Block 1 of that certain plat of Rich Valley First Addition, recorded on __________, 2022 in the official public records of Dakota County, Minnesota at Book _____, Page _____ (the “Plat”) (the “Property”); and WHEREAS, the City has obtained drainage and utility easements over such Lot 1, Block 1, as shown on the Plat, which are labeled on such Plat as “Drainage and Utility Easement” (collectively, the “Easement Areas”); and WHEREAS, by a separate subdivision agreement (the “Subdivision Agreement”), the Developer has agreed to construct and maintain certain stormwater facilities (the “Stormwater Improvements”) for the benefit of the Property; and WHEREAS, the Stormwater Improvements which are the subject of this Agreement include stormwater ponds and accompanying structures, including the stormwater pipe connecting the stormwater ponds; and WHEREAS, the City and the Developer intend to comply with certain conditions, including entering into a maintenance agreement regarding the Stormwater Improvements. NOW, THEREFORE, in consideration of mutual covenants of the parties set forth herein and other valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties agree as follows: 1. Maintenance of the Stormwater Improvements. The Developer, for itself and its successor or assigns, agrees to maintain the Stormwater Improvements and observe all drainage laws governing the operation and maintenance of the Stormwater Improvements. The Developer 2 RS220\427\820916.v1 shall make periodic inspection and perform maintenance of the Stormwater Improvements as described in Exhibit A attached hereto. The Developer shall make all such scheduled inspections and maintenance, keep record of all inspections and maintenance activities, and submit such records annually to the City by September 1 of each year. The cost of all inspections and maintenance, including skimming and cleaning of the Stormwater Improvements, shall be the obligation of the Developer and its successors or assigns as the fee owner of the Property. If the Developer initiates site modifications requiring a City permit, new or improved Stormwater Improvements may be required to satisfy the conditions for post-construction stormwater management. 2. City’s Rights. The City may inspect the Stormwater Improvements at any time to determine compliance with this Agreement. Additionally, the City may maintain the Stormwater Improvements, as provided in this paragraph, if the City reasonably believes that the Developer or its successors or assigns has failed to maintain the Stormwater Improvements in accordance with applicable drainage laws and other requirements and such failure continues for 30 days after the City gives the Developer written notice of such failure or, if such tasks cannot be completed within 30 days, after such time period as may be reasonably required to complete the required tasks provided that Developer is making a good faith effort to complete said task. The City’s notice shall specifically state which maintenance tasks are to be performed. If Developer does not complete the maintenance tasks within the required time period after such notice is given by the City, the City shall have the right to enter upon the Easement Areas and such portions of the Property as may reasonably be necessary to gain access to the Easement Areas to perform such maintenance tasks. In such case, the City shall send an invoice of its reasonable maintenance costs to the Developer or its successors or assigns, which shall include all reasonable staff time, engineering and legal and other reasonable costs and expenses incurred by the City. If the Developer or its successors or assigns fails to reimburse the City for its costs and expenses in maintaining the Stormwater Improvements within 30 days of receipt of an invoice for such costs, the City shall have the right to assess the full cost thereof against the Property. The Developer, on behalf of itself and its successors and assigns, acknowledges that the maintenance work performed by the City regarding the Stormwater Improvements benefits the Property in an amount which exceeds the assessment and hereby waives any right to hearing or notice and the right to appeal the assessments otherwise provided by Minnesota Statutes, Chapter 429. This provision shall not be construed to allow the City to erect any structure of permanent nature on the land of the Developer outside of the Easement Areas. Notwithstanding the foregoing, in the event of an emergency, as determined by the city engineer, the 30-day notice requirement to the Developer for failure to perform maintenance tasks shall be and hereby is waived in its entirety by the Developer, and the Developer shall reimburse the City and be subject to assessment for any expense so incurred by the City in the same manner as if written notice as described above has been given. 3. Hold Harmless. The Developer hereby agrees to indemnify and hold harmless the City and its agents and employees against any and all claims, demands, losses, damages, and expenses (including reasonable attorneys’ fees) arising out of or resulting from the Developer’s, or the Developer’s agents’ or employees’ negligent or intentional acts, or any violation of any safety law, regulation or code in the performance of this Agreement, without regard to any inspection or review made or not made by the City, its agents or employees or failure by the City, its agents or employees to take any other prudent precautions, except to the extent of intentional 3 RS220\427\820916.v1 or grossly negligent acts of the City, its employees, agents and representatives. In the event the City, upon the failure of the Developer to comply with any conditions of this Agreement, performs said conditions pursuant to its authority in this Agreement, the Developer shall indemnify and hold harmless the City, its employees, agents and representatives for its own negligent acts in the performance of the Developer’s required work under this Agreement. 4. Costs of Enforcement. The Developer agrees to reimburse the City for all reasonable costs prudently incurred by the City in the enforcement of this Agreement, or any portion thereof, including court costs and reasonable attorneys’ fees after providing written notice to Developer and a reasonable opportunity to cure. 5. Rights Not Exclusive. No right of the City under this Agreement shall be deemed to be exclusive and the City shall retain all rights and powers it may have under Minnesota Statutes, sections 444.16 to 444.21 to acquire, construct, reconstruct, extend, maintain and otherwise improve the Stormwater Improvements. 6. Notice. All notices required under this Agreement shall either be personally delivered or be sent by United States certified or registered mail, postage prepaid, and addressed as follows: a) as to Developer: Scannell Properties #527, LLC 8801 River Crossing Blvd., Suite 300 Indianapolis, IN 46240 Attn: Courtney Kanzinger, Counsel b) as to City: City of Rosemount _______________ _______________ ATTN: _____________ with a copy to: Rosemount City Attorney Kennedy & Graven 700 Fifth Street Towers 150 South Fifth Street Minneapolis, MN 55402 or at such other address as either party may from time to time notify the other in writing in accordance with this paragraph. 7. Successors and Assigns. All duties and obligations of Developer under this Agreement shall also be duties and obligations of Developer’s successors and assigns. The terms and conditions of this Agreement shall run with the Property and be recorded at Developer’s expense in the official public records of Dakota County, Minnesota. 8. Amendment and Waiver. The parties hereto may by mutual written agreement 4 RS220\427\820916.v1 amend this Agreement in any respect. Any waiver by either party of a breach of any provision of this Agreement will not affect, in any respect, the validity of the remainder of this Agreement. Any agreement on the part of any party for any such amendment, extension or waiver must be in writing. No waiver of any of the provisions of this Agreement shall be deemed, or shall constitute, a waiver of any other provisions, whether or not similar, nor shall any waiver constitute a continuing waiver. 9. No Other Portions of Plat Affected. For the avoidance of doubt, the parties acknowledge and agree that this Agreement concerns only the Easement Areas on Lot 1, Block 1 of the Plat, and not any other property depicted on said Plat. 10. Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of Minnesota. 11. Counterparts. This Agreement may be executed in any number of counterparts, each of which shall be deemed an original but all of which shall constitute one and the 12. Effective Date. This Agreement shall be binding and effective as of the date first written above. SCANNELL PROPERTIES #527, LLC, an Indiana limited liability company By: Marc Pfleging, Manager STATE OF INDIANA ) ) ss. COUNTY OF MARION ) This instrument was acknowledged before me on ________________, 2022, by Marc Pfleging, the Manager of Scannell Properties #527, LLC, an Indiana limited liability company, on behalf of the company. ____________________________________ Notary Public 5 RS220\427\820916.v1 CITY OF ROSEMOUNT By: William B. Droste, Mayor By: Erin Fasbender, City Clerk STATE OF MINNESOTA ) ) ss. COUNTY OF DAKOTA ) The foregoing instrument was acknowledged before me this ___ day of _________, 2022, by ______________ and ______________, the mayor and the city administrator, respectively, of the city of Rosemount, a Minnesota municipal corporation, on behalf of the municipal corporation. Notary Public This instrument drafted by: Kennedy & Graven, Chartered 700 Fifth Street Towers 150 South Fifth Street Minneapolis, MN 55402 (612) 337-9300 C-1 RS220\427\820916.v1 EXHIBIT A TO STORMWATER MAINTENANCE AGREEMENT Inspection and Maintenance Schedule Maintenance / Inspection Schedule Ponds – Operation and Maintenance Checklist Maintenance Item (frequency of inspections and maintenance) Satisfactory / Unsatisfactory Comments 1. Debris Cleanout (Monthly) Contributing drainage areas and facilities clean of litter and vegetative debris No dumping of yard waste into facility Bioretention area clean of litter and vegetative debris 2. Vegetation (Monthly) Plant height taller than design water depth Fertilized per O & M plan Plant composition according to O & M plan Adequate vegetation density Undesirable vegetation removed Grass height less than 6 inches Mulch layer adequate No evidence of erosion 3. Check Dams/Energy Dissipators/Sumps (Annually, After Major Storms) No evidence of sediment buildup Rip Rap in place and no missing rock Sumps should not be more than 50% full of sediment C-2 RS220\427\820916.v1 No evidence of erosion at downstream toe of drop structure 4. Dewatering ( Monthly) Dewaters between storms within 48 hours No evidence of standing water 5. Sediment Deposition (Annually) Pretreatment areas clean of sediments Contributing drainage area stabilized and clear of erosion No evidence of surface clogging Winter sand deposition evacuated every spring 6. Outlet/Overflow Spillway (Annually, After Major Storms) Good condition, no need for repair No evidence of erosion No evidence of any blockages 7. Integrity of Pond (Annually) Facility has not been blocked or filled inappropriately Comments: Actions to be taken: C-3 RS220\427\820916.v1 Infiltration Basin – Operation and Maintenance Checklist Maintenance Item (frequency of inspections and maintenance) Satisfactory / Unsatisfactory Comments 1. Debris Cleanout (Monthly) Contributing drainage areas and facilities clean of litter and vegetative debris No dumping of yard waste into facility Infiltration area clean of litter and vegetative debris 2. Vegetation (Monthly) Plant height taller than design water depth Fertilized per O & M plan Plant composition according to O & M plan Adequate vegetation density Undesirable vegetation removed Grass height less than 6 inches Mulch layer adequate No evidence of erosion 3. Check Dams/Energy Dissipators/Sumps (Annually, After Major Storms) No evidence of sediment buildup Rip Rap in place and no missing rock Sumps should not be more than 50% full of sediment No evidence of erosion at downstream toe of drop structure 4. Dewatering ( Monthly) Dewaters between storms within 48 hours No evidence of standing water C-4 RS220\427\820916.v1 5. Sediment Deposition (Annually) Pretreatment areas clean of sediments Contributing drainage area stabilized and clear of erosion No evidence of surface clogging Winter sand deposition evacuated every spring 6. Outlet/Overflow Spillway (Annually, After Major Storms) Good condition, no need for repair No evidence of erosion No evidence of any blockages 7. Integrity of Filter Bed (Annually) Facility has not been blocked or filled inappropriately Comments: Actions to be taken: 2653 2657 2659 26602661 2662 2792 2879 28812882288328842886 2964 29762977 2978 297929802981 2982 29 8 3 2985 2987298829892990 2991 2992 2993 2994 2995 2996 29972998 2999 3003 3004 3005 30063007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3030 3031 3032 3033 3046 304730483049 3050 3051 3052 30533054 3055 3056 3057 3058 3059 30603061 3062 30633064 3065 3066 3067 3068 306930703071307230733074 3075 30763077 3078 3079 3080 30813082308330843085308630873088 3089 30903091 3092 3093 3094 3095 1562.7' 35 6 . 7 ' BUILDING 1 ±557,000 SF FFE=860.50 STORMWATER MANAGEMENT LOT 1 BLOCK 1 96.75 AC OUTLOT B 16.67 AC STORMWATER MANAGEMENT STORMWATER MANAGEMENT OUTLOT C 35.79 AC OUTLOT A 0.63 AC PROPOSED FUTURE DEVELOPMENT ±253,000 SF FFE=873.0021 0 . 0 ' 1205.0' PROPOSED FUTURE DEVELOPMENT ±223,000 SF FFE=873.00 21 0 . 0 ' 1065.0' D D D DDDD D DD DDD D D DDDD DD D D DD D D D D D D DD D BMP #2: INFILTRATION BASIN BASIN BOTTOM: 834.00 TOP OF POND: 840.00 100-YR HWL: 837.22 10-DAY SNOWMELT HWL: 837.95BMP #1: PRE-TREATMENT BASIN BASIN BOTTOM: 824.00 TOP OF POND: 834.00 100-YR HWL: 837.22 10-DAY SNOWMELT HWL: 837.95 NWL: 834.00 BMP #4: PRE-TREATMENT BASIN BASIN BOTTOM: 825.00 TOP OF POND: 834.00 100-YR HWL: 836.24 10-DAY SNOWMELT HWL: 837.12 NWL: 834.00 BMP #5: PRE-TREATMENT BASIN BASIN BOTTOM: 828.00 TOP OF POND: 842.00 100-YR HWL: 841.41 10-DAY SNOWMELT HWL: 839.56 NWL:835.00 BMP #6: PRE-TREATMENT BASIN BASIN BOTTOM: 832.00 TOP OF POND: 839.00 100-YR HWL: 839.93 10-DAY SNOWMELT HWL: 839.56 NWL:839.00 REFER TO PUBLIC IMPROVEMENT PLANS FOR PUBLIC ROAD IMPROVEMENTS REFER TO PUBLIC IMPROVEMENT PLANS FOR 140TH STREET EAST IMPROVEMENTS REFER TO PUBLIC IMPROVEMENT PLANS FOR COUNTY ROAD 42 IMPROVEMENTS EXISTING WETLAND BUFFER 1. 6 7 % 6.2 6 % 1.5 7 % 1. 6 3 % 1. 6 3 % 1. 6 2 % 1. 6 0 % 1. 6 4 % 1. 7 8 % 2.74% 1.5 2 % 1.58% 2 . 0 1 % 1.63% 1.64% 1. 6 6 % 1 . 7 9 % 1. 2 0 % 1.20% 1. 2 0 % 1. 2 0 % 1. 4 3 % 1. 4 3 % 1. 9 8 % 1. 7 2 % 1 . 7 7 % 1 . 5 0 % 2. 9 6 % 1.4 7 % 2 . 3 3 % 1.00% 2.48 % 2.9 3 % 3.4 1 % 2.8 7 % 1.09% 1.99% 1.91% 1.90% 1.76%1.93% 1.93% 18:1 18:1 64:1 4:1 3: 1 4 : 1 4: 1 4 : 1 4: 1 4: 1 5: 1 5 : 1 10 5 : 1 9 : 1 6:1 6:1 4: 1 4: 1 4: 1 4: 1 3: 1 40: 1 4: 1 40: 1 4: 1 48 : 1 3: 1 4:1 4:1 3:1 4:1 5 : 1 4: 1 4: 1 4: 1 3: 1 4: 1 4: 1 7: 1 3:1 4: 1 4: 1 5 : 1 3. 5 8 % 7. 5 9 % 2. 4 0 % 2. 4 0 % 7 . 3 2 % 8 . 0 9 % 1 1 . 1 8 % 6. 8 8 % 5: 1 3.3 8 % 3.0 7 % 1.73% 4. 2 5 % 6.1 9 % 1. 0 0 % 1. 0 0 % 1. 0 0 % 24:1 28 : 1 14 . 3 4 % 16 : 1 15 : 1 4 : 1 4: 1 19 : 1 13 : 1 26 : 1 BMP #7: PRE-TREATMENT BASIN BASIN BOTTOM: 822.00 TOP OF POND: 832.00 100-YR HWL: 839.93 10-DAY SNOWMELT HWL: 839.56 NWL: 832.00 BMP #3: INFILTRATION BASIN BASIN BOTTOM: 834.00 TOP OF POND: 838.00 100-YR HWL: 836.24 10-DAY SNOWMELT HWL: 837.12 860 860 860 870 870 8 5 2 852854 854854 856 856 856 858 858 858 862 862 862 862 862 86 4 864 864 864 864 864 864 8 6 6 866866 866 866 866 866 868 868 868 868 868 868 868 87 2 872 874 8 7 4 876 8 7 6 878 8 7 8 850 86 0 86 0 860 860 848 8 5 2 852 852 852 85 2 85 2 854 85 4 854 854 854 8 5 4 85 6 856 85 6 85 6 856 856 85 8 85 8 858 858 85 0 850 850 850 850850 850850 8 5 0 8 5 0 860 860860 860860 860 848 848848 8 4 8 8 4 8 8 5 2 8 5 2 8 5 2 85 2 852 852852 852 854 854 854 854 854 85 4 8 5 4 8 5 4 856 856 856 856 856 85 6 8 5 6 8 5 6 858 858858 858858 85 8 85 8 8 5 8 84 0 838 84 2 844 846 840 83 0 840 840840 840 8 4 0 85 0 840 830 8 6 0 8 7 0 8 8 0 860 870 840 850 840 850 860 830 850 840 830 840 850 84 0 84 0 840 8 5 085 0 850 860 87 0 8 8 0 BMP #8: INFILTRATION BASIN BASIN BOTTOM: 832.00 TOP OF POND: 842.00 100-YR HWL: 839.93 10-DAY SNOWMELT HWL: 839.56 MAINTENANCE BUILDING FFE: 856.50' OCS-1 OCS-2 OCS (BY OTHERS) HP:842.00 EOF:840.47 BMP #9: PRE-TREATMENT BASIN BASIN BOTTOM: 828.00 TOP OF POND: 842.00 100-YR HWL: 837.71 10-DAY SNOWMELT HWL: 839.29 NWL:835.00 HP:835.02 HP:835.00 D EXISTING WETLAND BOUNDARY Th i s d o c u m e n t , t o g e t h e r w i t h t h e c o n c e p t s a n d d e s i g n s p r e s e n t e d h e r e i n , a s a n i n s t r u m e n t o f s e r v i c e , i s i n t e n d e d o n l y f o r t h e s p e c i f i c p u r p o s e a n d c l i e n t f o r w h i c h i t w a s p r e p a r e d . R e u s e o f a n d i m p r o p e r r e l i a n c e o n t h i s d o c u m e n t w i t h o u t w r i t t e n a u t h o r i z a t i o n a n d a d a p t a t i o n b y K i m l e y - H o r n a n d A s s o c i a t e s , I n c . s h a l l b e w i t h o u t l i a b i l i t y t o K i m l e y - H o r n a n d A s s o c i a t e s , I n c . SHEET NUMBER 20 2 1 K I M L E Y - H O R N A N D A S S O C I A T E S , I N C . 76 7 E U S T I S S T R E E T , S U I T E 1 0 0 , S T . P A U L , M N 5 5 1 1 4 PH O N E : 6 5 1 - 6 4 5 - 4 1 9 7 WW W . K I M L E Y - H O R N . C O M K: \ T W C _ L D E V \ S c a n n e l l \ R o s e m o u n t \ 3 D e s i g n \ C A D \ P l a n S h e e t s \ C 5 - O V E R A L L G R A D I N G P L A N . d w g A u g u s t 2 3 , 2 0 2 2 - 4 : 5 7 p m © BY RE V I S I O N S No . DA T E CH A N G E R E Q U E S T S 1 07 / 2 9 / 2 0 2 2 BM W FE D E X / C I T Y C O O R D I N A T I O N 2 08 / 0 9 / 2 0 2 2 BM W CI T Y R E S U B M I T T A L 3 08 / 2 2 / 2 0 2 2 BM W PR E P A R E D F O R OV E R A L L GR A D I N G P L A N C5.0 RI C H V A L L E Y FI R S T A D D I T I O N SC A N N E L L PR O P E R T I E S RO S E M O U N T MN DA T E : I H E R E B Y C E R T I F Y T H A T T H I S P L A N , SP E C I F I C A T I O N O R R E P O R T W A S P R E P A R E D B Y ME O R U N D E R M Y D I R E C T S U P E R V I S I O N A N D TH A T I A M A D U L Y L I C E N S E D P R O F E S S I O N A L EN G I N E E R U N D E R T H E L A W S O F T H E S T A T E O F MI N N E S O T A . MN LI C . N O . BR I A N M . W U R D E M A N 05 / 2 0 / 2 0 2 2 53 1 1 3 DA T E CH E C K E D B Y SC A L E DE S I G N E D B Y DR A W N B Y KH A P R O J E C T 16 0 8 4 6 0 2 3 08 / 0 9 / 2 0 2 2 AS S H O W N BM W RA V BM W NORTH GRADING PLAN NOTES 1.ALL WORK SHALL BE PERFORMED IN ACCORDANCE WITH THE CITY OF ROSEMOUNT, SPECIFICATIONS AND BUILDING PERMIT REQUIREMENTS. 2.CONTRACTOR TO CALL GOPHER STATE CALL ONE @ 1-800-252-1166 AT LEAST TWO WORKING DAYS PRIOR TO EXCAVATION/CONSTRUCTION FOR UTILITY LOCATIONS. 3.STORM SEWER PIPE SHALL BE AS FOLLOWS: RCP PER ASTM C-76 HDPE: 0" - 10" PER AASHTO M-252 HDPE: 12" OR GREATER PER ASTM F-2306 PVC SCH. 40 PER ASTM D-1785 STORM SEWER FITTINGS SHALL BE AS FOLLOWS: RCP PER ASTM C-76, JOINTS PER ASTM C-361, C-990, AND C-443 HDPE PER ASTM 3212 PVC PER ASTM D-3034, JOINTS PER ASTM D-3212 4.CONTRACTOR TO FIELD VERIFY THE LOCATIONS AND ELEVATIONS OR EXISTING UTILITIES AND TOPOGRAPHIC FEATURES PRIOR TO THE START OF SITE GRADING. THE CONTRACTOR SHALL IMMEDIATELY NOTIFY THE PROJECT ENGINEER OF ANY DISCREPANCIES OR VARIATIONS. 5.SUBGRADE EXCAVATION SHALL BE BACKFILLED IMMEDIATELY AFTER EXCAVATION TO HELP OFFSET ANY STABILITY PROBLEMS DUE TO WATER SEEPAGE OR STEEP SLOPES. WHEN PLACING NEW SURFACE MATERIAL ADJACENT TO EXISTING PAVEMENT, THE EXCAVATION SHALL BE BACKFILLED PROMPTLY TO AVOID UNDERMINING OF EXISTING PAVEMENT. 6.CONTRACTOR SHALL BE RESPONSIBLE FOR ALL HORIZONTAL AND VERTICAL CONTROL. 7.CONTRACTOR SHALL EXCAVATE DRAINAGE TRENCHES TO FOLLOW PROPOSED STORM SEWER ALIGNMENTS. 8.GRADES SHOWN ARE FINISHED GRADES. CONTRACTOR SHALL ROUGH GRADE TO SUBGRADE ELEVATION AND LEAVE STREET READY FOR SUBBASE. 9.ALL EXCESS MATERIAL, BITUMINOUS SURFACING, CONCRETE ITEMS, ANY ABANDONED UTILITY ITEMS, AND OTHER UNSTABLE MATERIALS SHALL BECOME THE PROPERTY OF THE CONTRACTOR AND SHALL BE DISPOSED OF OFF THE CONSTRUCTION SITE. 10.REFER TO THE UTILITY PLAN FOR SANITARY SEWER MAIN, WATER MAIN SERVICE LAYOUT AND ELEVATIONS AND CASTING / STRUCTURE NOTATION. 11.CONTRACTOR IS RESPONSIBLE FOR CONSTRUCTION OF PAVEMENTS AND CURB AND GUTTER WITH SMOOTH UNIFORM SLOPES TO PROVIDE POSITIVE DRAINAGE. 12.INSTALL A MINIMUM OF 4" CLASS 5 AGGREGATE BASE UNDER CURB AND GUTTER AND CONCRETE SIDEWALKS. 13.UPON COMPLETION OF EXCAVATION AND FILLING, CONTRACTOR SHALL RESTORE ALL STREETS AND DISTURBED AREAS ON SITE. ALL DISTURBED AREAS SHALL BE RE-VEGETATED WITH A MINIMUM OF: 4" OF TOPSOIL OR PER THE EARTHWORK SPECIFICATIONS FOR THE PROJECT. 14.ALL SPOT ELEVATIONS/CONTOURS ARE TO GUTTER / FLOW LINE UNLESS OTHERWISE NOTED. 15.GRADING FOR ALL SIDEWALKS AND ACCESSIBLE ROUTES INCLUDING CROSSING DRIVEWAYS SHALL CONFORM TO CURRENT ADA STATE/NATIONAL STANDARDS. IN NO CASE SHALL ACCESSIBLE RAMP SLOPES EXCEED 1 VERTICAL TO 12 HORIZONTAL. IN NO CASE SHALL SIDEWALK CROSS SLOPES EXCEED 2% . IN NO CASE SHALL LONGITUDINAL SIDEWALK SLOPES EXCEED 5%. IN NO CASE SHALL ACCESSIBLE PARKING STALLS OR AISLES EXCEED 2% (1.5% TARGET) IN ALL DIRECTIONS. SIDEWALK ACCESS TO EXTERNAL BUILDING DOORS AND GATES SHALL BE ADA COMPLIANT. CONTRACTOR SHALL NOTIFY ENGINEER IMMEDIATELY IF ADA CRITERIA CANNOT BE MET IN ANY LOCATION PRIOR TO PAVING. NO CONTRACTOR CHANGE ORDERS WILL BE ACCEPTED FOR A.D.A COMPLIANCE ISSUES. 16.MAINTAIN A MINIMUM OF 0.5% GUTTER SLOPE TOWARDS LOW POINTS. 17.CONTRACTOR TO PROVIDE 3" INSULATION BY 5' WIDE CENTERED ON STORM PIPE IF LESS THAN 4' OF COVER IN PAVEMENT AREAS AND LESS THAN 3' OF COVER IN LANDSCAPE AREAS. 18.ROOF DRAIN INVERT CONNECTIONS AT THE BUILDING SHALL BE AT ELEVATION <XXX.XX> OR LOWER UNLESS NOTED OTHERWISE. REFERENCE MEP PLANS FOR ROOF DRAIN CONNECTION. 19.ALL STORM SEWER CONNECTIONS SHALL BE GASKETED AND WATER TIGHT INCLUDING MANHOLE CONNECTIONS. 20.ALL STORM SEWER PIPE SHALL BE AIR TESTED IN ACCORDANCE WITH THE CURRENT PLUMBING CODE. 21.MAINTAIN A MINIMUM OF 1.25% SLOPE IN BITUMINOUS PAVEMENT AREAS, 0.5% SLOPE IN CONCRETE PAVEMENT AREAS. 22.CONTRACTOR SHALL REVIEW PAVEMENT GRADIENT AND CONSTRUCT "INFALL CURB" WHERE PAVEMENT DRAINS TOWARD GUTTER, AND "OUTFALL" CURB WHERE PAVEMENT DRAINS AWAY FROM GUTTER. PROPOSED STORM SEWER PROPOSED STORM SEWER PROPERTY LINE EXISTING CONTOUR PROPOSED CONTOUR925 PROPOSED SPOT ELEVATION100.00 LEGEND PROPOSED HIGH POINT ELEVATION HP:0.0 PROPOSED LOW POINT ELEVATION PROPOSED GUTTER ELEVATION PROPOSED TOP OF CURB ELEVATION PROPOSED FLUSH PAVEMENT ELEVATION LP:0.0 G:0.00 T:0.00 PROPOSED EMERGENCY OVERFLOW T/G:0.0 EOF:0.0 0.0%PROPOSED DRAINAGE DIRECTION 0.00%PROPOSED ADA SLOPE ME:0.0 MATCH EXISTING ELEVATION PROPOSED STORM MANHOLE (SOLID CASTING) PROPOSED STORM MANHOLE (ROUND INLET CASTING) PROPOSED STORM MANHOLE/ CATCH BASIN (CURB INLET CASTING) PROPOSED STORM SEWER CLENOUT PROPOSED RIPRAP PROPOSED FLARED END SECTION CO D DEVELOPER CITY STORMWATER MAINTENANCE RESPONSIBILITY