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HomeMy WebLinkAbout2022-05-16 I14 Access Systems_Site Plan AGENDA ITEM: CITY OF WAUKEE, IOWA CITY COUNCIL MEETING COMMUNICATION MEETING DATE: May 16, 2022 AGENDA ITEM: Consideration of approval of a resolution approving a site plan for Access Systems (1055 SE Olson Drive) FORMAT: Resolution SYNOPSIS INCLUDING PRO & CON: Fareway Stores, Inc., requests approval of a site plan to authorize the construction of a 33,450 square foot office building for Access Systems. The building will be 39-feet in height. Access to the site will be provided from SE Olson Drive. A total of 101 parking spaces are required and the site plan identifies 113 parking spaces. The applicant has provided elevations for the proposed building on the site. The design and materials are consistent with the Site Plan Ordinance. FISCAL IMPACT INCLUDING COST/BENEFIT ANALYSIS: COMMISSION/BOARD/COMMITTEE COMMENT: The Planning and Zoning Commission reviewed this project at the March 29, 2022, Commission Meeting and recommended approval subject to remaining staff comments: Approval of a Site Plan for Access Systems (1055 SE Olson Drive) Community Development Director, Andy Kass, introduced the request for approval of a preliminary plat, final plat, and site plan for an office development, as submitted by the applicant, Access Systems. The property is generally located north of SE Olson Drive and west of SE Alice’s Road, containing approximately 3.08 acres. The applicant wishes to replat the two existing lots into one lot and construct a new facility to the east of the existing facility. Mr. Kass advised that the project involves the construction of a 33,450 square foot office building for Access Systems and is proposed to be two stories in height. The site plan identifies an area for expansion however any future expansion will require additional review and approval. A trash enclosure is located on the northwest side of the site. Access will be provided via SE Olson Drive, and storm water management will be provided via an underground detention system. All parking, landscaping, open space, and elevation requirements have been met at this time. Staff would recommend approval of the preliminary plat, final plat, and site plan subject to any remaining staff comments and review of the legal documents.  Commissioner Streit questioned how often the underground detention is serviced. Mr. Kass advised that the requirements are very similar to a ground level pond. The city now requires maintenance plans on stormwater management and detention so that the information can more easily be passed along through changing hands. I14  Commissioner Broderick questioned if the connection to the west is owned by the applicant. Mr. Kass advised that was correct. Commissioner Hoifeldt moved to approve the site plan for Access Systems (1055 SE Olson Drive) subject to any remaining staff comments and review of the legal documents. Commissioner Streit seconded the motion. Ayes: Gerlitz, Hoifeldt, Streit, Inman, Broderick, Koshy, and Tessau. Nays: none. Motion Carried. STAFF REVIEW AND COMMENT: Staff recommends approval of the site plan subject to remaining staff comments. RECOMMENDATION: Approve the resolution subject to remaining staff comments. ATTACHMENTS: I. Proposed Resolution II. Staff Report III. Site Plan & Elevations PREPARED BY: Andy Kass, Community Development Director REVIEWED BY: THE CITY OF WAUKEE, IOWA RESOLUTION 2022- APPROVING THE SITE PLAN FOR ACCESS SYSTEMS (1055 SE OLSON DRIVE) IN THE NAME AND BY THE AUTHORITY OF THE CITY OF WAUKEE, IOWA WHEREAS, the City of Waukee, Dallas County, State of Iowa, is a duly organized Municipal Organization; AND, WHEREAS, the City of Waukee Planning and Zoning Commission recommended approval of the Site Plan for Access Systems, subject to remaining staff comments on March 29, 2022; AND, WHEREAS, the Site Plan for Access Systems is in general conformance with §160 – Site and Building Development Standards Ordinance of the Waukee Municipal Code; AND, WHEREAS, the Site Plan for Access Systems is in general conformance with §161 – Landscaping and Open Space Ordinance of the Waukee Municipal Code; AND, NOW THEREFORE BE IT RESOLVED by the City Council of the City of Waukee, Iowa on this 16th day of May, 2022 that the Site Plan for Access Systems is approved. ____________________________ Courtney Clarke, Mayor Attest: ___________________________________ Rebecca D. Schuett, City Clerk RESULTS OF VOTE: AYE NAY ABSENT ABSTAIN Anna Bergman Pierce R. Charles Bottenberg Chris Crone Larry R. Lyon Ben Sinclair PLANNING AND ZONING COMMISSION STAFF REPORT PROJECT: Westgate Business Park Plat 5 & Access Systems – Preliminary Plat, Final Plat, & Site Plan PREPARED BY: Andy Kass, AICP, Community Development Director REPORT DATE: March 25, 2022 MEETING DATE: March 29, 2022 GENERAL INFORMATION Applicant: Access Systems Owner: Jace Properties, LLC Owner’s Representative: Nicole Neal, P.L.A. – Civil Design Advantage Request: The applicant is requesting approval of a preliminary plat, final plat, and site plan for an office development. Location and Size: Property is generally located north of SE Olson Drive west of SE Alice’s Road, containing approximately 3.08-acres. AREA MAP ABOVE: Aerial of subject property (outlined in RED) in relation to the surrounding area. March 25, 2022 2 of 3 LAND USES AND ZONING Location Existing Land Use Comprehensive Plan Current Zoning Property in Question Vacant – Undeveloped Neighborhood Commercial M-1 (Light Industrial District) / PD-1 (Planned Development Overlay) North Vacant – Undeveloped Neighborhood Commercial C-1A (Neighborhood Commercial District) / PD-1 (Planned Development Overlay District) South Westgate Business Park Community Commercial M-1 (Light Industrial District) / PD-1 (Planned Development Overlay) East Car-X Neighborhood Commercial C-1 (Community & Highway Service Commercial District) West Westgate Business Park Neighborhood Commercial M-1 (Light Industrial District) / PD-1 (Planned Development Overlay) HISTORY The subject property is located west of SE Alice’s Road and north of SE Olson Drive. The property was originally platted and zoned as part of the Westgate Business Park planned development. The applicant wishes to replat the two existing lots into one lot to construct an office building for Access Systems which has an existing facility to the west of the property. PROJECT DESCRIPTION The project involves the construction of a 33,450 square foot office building for Access Systems. The building is proposed to be two stories in height with an overall heigh of 39-feet. The site plan identifies a potential expansion area for the building. Any future expansion will require additional review and approval by the City. The proposed trash enclosure is located on the northwest side of the site. ACCESS AND PARKING Access to the site will be provided via SE Olson Drive. The required amount of parking for the building is 101 parking spaces. The site plan identifies that 113 parking spaces will be provided. A 5-foot sidewalk will be extended along SE Olson Drive as part of the improvements. In addition, the site plan shows a connection to the existing 10-foot trail along SE Alice’s Road. UTILITIES Utilities already exist on-site to serve the proposed office building. Stormwater management will be provided via an underground detention system. March 25, 2022 3 of 3 LANDSCAPING & OPEN SPACE The required amount of open space for this site is 10% and the landscape plan identifies that 38% open space will be provided. The required amount of plantings have been shown on the site plan. ELEVATIONS Elevations of the available units and clubhouse have been provided by the applicant. Proposed materials include composite panels, glazing, stone, and fiber cement panels. LOTS One lot is shown on the preliminary plat and final plat. Lot 1 is 3.08-acres in area. Lot 1 complies will all requirements of the M-1/PD-1 zoning district. STAFF RECOMMENDATION The site plan is in general conformance with the Zoning Ordinance, Subdivision Ordinance, Site Plan Ordinance, and Comprehensive Plan. Staff recommends approval of the preliminary plat, final plat, and site plan subject to remaining staff comments and review of the legal documents. 4121 NW URBANDALE DRIVE, URBANDALE, IOWA 50322 PH: (515) 369-4400 CIVIL DESIGN ADVANTAGE UTILITY WARNING EXISTING/ PROPOSED USE BULK REGULATIONS ZONING INDEX OF SHEETS VICINITY MAP LEGAL DESCRIPTION DATE OF SURVEY BENCHMARKS www.iowaonecall.com 1-800-292-8989 ONE CALL IOWA ONE CALL Know what's before you dig. below.Call Access SystemsAccess Systems SITE PLAN/PRELIMINARY PLAT FOR: AC C E S S S Y S T E M S - 2 1 1 1 . 9 0 1 AL I C E S R O A D SE OLSON DRIVE PROJECT ENGINEER/ SURVEYOR: OWNER: SUBMITTALS 1055 SE OLSON DRIVE WAUKEE, IA APPLICANT ARCHITECT PRELIMIN A R Y PRELIMI N A R Y PROJECT SITE ADDRESS GENERAL LEGEND l l l l l l DEVELOPMENT SUMMARY SE FRONTIER AVENUE SE A L I C E ' S R O A D SE OLSON DRIVE S0 ° 1 7 ' 2 6 " W 3 7 0 . 7 4 ' ( M & R ) N89°47'28"W 131.23' N0 ° 1 7 ' 4 3 " E 3 6 8 . 8 1 ' ( M & R ) Δ=1°03'46" L=21.61' R=1165.00' CH=21.61' CHB=S89°09'29"E S89°41'22"E 66.14'(M&R) Δ=6°14'07" L=43.53' R=400.00' CH=43.51' CHB=N87°11'34"E Δ=4°52'39" L=34.05' R=400.00' CH=34.04' CHB=S81°38'11"W Δ=11°06'46" L=77.58' R=400.00' CH=77.46' CHB=S84°45'15"W N89°41'22"W 107.43'(M&R) Δ=93°46'22" L=49.10' R=30.00' CH=43.80' CHB=S43°08'33"W S 3 ° 2 5 ' 4 8 " E 3 2 5 . 1 5 ' ( M & R ) S89°47'28"E 226.84' TO P O G R A P H I C S U R V E Y / D E M O L I T I O N P L A N C1.1 WA U K E E , I O W A RE V I S I O N S DR A F T E D : EN G I N E E R : CI V I L D E S I G N A D V A N T A G E DA T E AC C E S S S Y S T E M S PH O N E : ( 5 1 5 ) 3 6 9 - 4 4 0 0 41 2 1 N W U R B A N D A L E D R I V E UR B A N D A L E , I O W A 5 0 3 2 2 2111.901 05/09/2022 DATE: SHEET NUMBER: DEMOLITION NOTES PROPOSED BUILDING MAIN FLOOR: 15,997 S.F. UPPER FLOOR; 17,453 S.F. TOTAL: 33,450 S.F. FFE=1048.25 SE A L I C E ' S R O A D SE OLSON DRIVE 3 0 ' B U I L D I N G S E T B A C K 30' BUILDING SETBACK 1 0 ' P A R K I N G S E T B A C K 5' PARKING SETBACK 10' PARKING SETBACK 10' PARKING SETBACK 30' BUILDING SETBACK 5' P A R K I N G S E T B A C K 35' BUILDING SETBACK PROPOSED EXPANSION MAIN FLOOR: 10,000 S.F. UPPER FLOOR; 10,000 S.F. TOTAL: 20,000 S.F. DI M E N S I O N P L A N C2.1 WA U K E E , I O W A RE V I S I O N S DR A F T E D : EN G I N E E R : CI V I L D E S I G N A D V A N T A G E DA T E AC C E S S S Y S T E M S PH O N E : ( 5 1 5 ) 3 6 9 - 4 4 0 0 41 2 1 N W U R B A N D A L E D R I V E UR B A N D A L E , I O W A 5 0 3 2 2 2111.901 05/09/2022 DATE: SHEET NUMBER: GENERAL NOTES TRAFFIC CONTROL NOTES PAVEMENT THICKNESS PROPOSED BUILDING MAIN FLOOR: 15,997 S.F. UPPER FLOOR; 17,453 S.F. TOTAL: 33,450 S.F. FFE=1048.25 SE A L I C E ' S R O A D SE OLSON DRIVE GR A D I N G P L A N C3.1 WA U K E E , I O W A RE V I S I O N S DR A F T E D : EN G I N E E R : CI V I L D E S I G N A D V A N T A G E DA T E AC C E S S S Y S T E M S PH O N E : ( 5 1 5 ) 3 6 9 - 4 4 0 0 41 2 1 N W U R B A N D A L E D R I V E UR B A N D A L E , I O W A 5 0 3 2 2 2111.901 05/09/2022 DATE: SHEET NUMBER: GRADING NOTES SOIL QUALITY RESTORATION / TOPSOIL RESPREAD GR A D I N G P L A N C3.2 WA U K E E , I O W A RE V I S I O N S DR A F T E D : EN G I N E E R : CI V I L D E S I G N A D V A N T A G E DA T E AC C E S S S Y S T E M S PH O N E : ( 5 1 5 ) 3 6 9 - 4 4 0 0 41 2 1 N W U R B A N D A L E D R I V E UR B A N D A L E , I O W A 5 0 3 2 2 2111.901 05/09/2022 DATE: SHEET NUMBER: ENLARGEMENT #1 ENLARGEMENT #2 ENLARGEMENT #3 ENLARGEMENT #4 DA #1 3.19 AC R l l l l l l l l l l l l l l l l l llllllllllllllll llllllllllllllllllllllllllllll l l l l l l l l l lll l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l lllllllllllllllllllllllllll l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l DISCHARGE POINT #1 +2800 FEET TO AN UNNAMED TRIBUTARY OF SUGAR CREEK ER O S I O N & S E D I M E N T C O N T R O L P L A N C3.3 WA U K E E , I O W A RE V I S I O N S DR A F T E D : EN G I N E E R : CI V I L D E S I G N A D V A N T A G E DA T E AC C E S S S Y S T E M S PH O N E : ( 5 1 5 ) 3 6 9 - 4 4 0 0 41 2 1 N W U R B A N D A L E D R I V E UR B A N D A L E , I O W A 5 0 3 2 2 2111.901 05/09/2022 DATE: SHEET NUMBER: R l l l l SWPPP LEGEND DISCHARGE POINT SUMMARY STABILIZATION QUANTITIES NOTES: 15 0 ' H Y D R A N T RA D I U S 15 0 ' H Y D R A N T RA D I U S 15 0 ' H Y D R A N T R A D I U S 15 0 ' H Y D R A N T R A D I U S 15 0 ' H Y D R A N T RA D I U S 15 0 ' H Y D R A N T RA D I U S 15 0 ' H Y D R A N T RA D I U S 15 0 ' H Y D R A N T R A D I U S 15 0 ' H Y D R A N T R A D I U S 15 0 ' H Y D R A N T RA D I U S 15 0 ' H Y D R A N T RA D I U S PROPOSED BUILDING MAIN FLOOR: 15,997 S.F. UPPER FLOOR; 17,453 S.F. TOTAL: 33,450 S.F. FFE=1048.25 SE A L I C E ' S R O A D SE OLSON DRIVE UT I L I T Y P L A N C4.1 WA U K E E , I O W A RE V I S I O N S DR A F T E D : EN G I N E E R : CI V I L D E S I G N A D V A N T A G E DA T E AC C E S S S Y S T E M S PH O N E : ( 5 1 5 ) 3 6 9 - 4 4 0 0 41 2 1 N W U R B A N D A L E D R I V E UR B A N D A L E , I O W A 5 0 3 2 2 2111.901 05/09/2022 DATE: SHEET NUMBER: UTILITY NOTES DE T A I L S C5.1 WA U K E E , I O W A RE V I S I O N S DR A F T E D : EN G I N E E R : CI V I L D E S I G N A D V A N T A G E DA T E AC C E S S S Y S T E M S PH O N E : ( 5 1 5 ) 3 6 9 - 4 4 0 0 41 2 1 N W U R B A N D A L E D R I V E UR B A N D A L E , I O W A 5 0 3 2 2 2111.901 05/09/2022 DATE: SHEET NUMBER: 3 SC-310 TECHNICAL SPECIFICATION 2 STORMTECH SC-310 CHAMBER SYSTEM 1 STORMTECH SC-310 CHAMBER SYSTEM 4 STORMTECH SC-310 CHAMBER SYSTEM ACCEPTABLE FILL MATERIALS: STORMTECH SC-310 CHAMBER SYSTEMS PLEASE NOTE: 1.THE LISTED AASHTO DESIGNATIONS ARE FOR GRADATIONS ONLY. THE STONE MUST ALSO BE CLEAN, CRUSHED, ANGULAR. FOR EXAMPLE, A SPECIFICATION FOR #4 STONE WOULD STATE: "CLEAN, CRUSHED, ANGULAR NO. 4 (AASHTO M43) STONE". 2.STORMTECH COMPACTION REQUIREMENTS ARE MET FOR 'A' LOCATION MATERIALS WHEN PLACED AND COMPACTED IN 6" (150 mm) (MAX) LIFTS USING TWO FULL COVERAGES WITH A VIBRATORY COMPACTOR. 3.WHERE INFILTRATION SURFACES MAY BE COMPROMISED BY COMPACTION, FOR STANDARD DESIGN LOAD CONDITIONS, A FLAT SURFACE MAY BE ACHIEVED BY RAKING OR DRAGGING WITHOUT COMPACTION EQUIPMENT. FOR SPECIAL LOAD DESIGNS, CONTACT STORMTECH FOR COMPACTION REQUIREMENTS. 4.ONCE LAYER 'C' IS PLACED, ANY SOIL/MATERIAL CAN BE PLACED IN LAYER 'D' UP TO THE FINISHED GRADE. MOST PAVEMENT SUBBASE SOILS CAN BE USED TO REPLACE THE MATERIAL REQUIREMENTS OF LAYER 'C' OR 'D' AT THE SITE DESIGN ENGINEER'S DISCRETION. NOTES: 1.CHAMBERS SHALL MEET THE REQUIREMENTS OF ASTM F2922 (POLETHYLENE) OR ASTM F2418-16a (POLYPROPYLENE), "STANDARD SPECIFICATION FOR CORRUGATED WALL STORMWATER COLLECTION CHAMBERS". 2.SC-310 CHAMBERS SHALL BE DESIGNED IN ACCORDANCE WITH ASTM F2787 "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS". 3.THE SITE DESIGN ENGINEER IS RESPONSIBLE FOR ASSESSING THE BEARING RESISTANCE (ALLOWABLE BEARING CAPACITY) OF THE SUBGRADE SOILS AND THE DEPTH OF FOUNDATION STONE WITH CONSIDERATION FOR THE RANGE OF EXPECTED SOIL MOISTURE CONDITIONS. 4.PERIMETER STONE MUST BE EXTENDED HORIZONTALLY TO THE EXCAVATION WALL FOR BOTH VERTICAL AND SLOPED EXCAVATION WALLS. 5.REQUIREMENTS FOR HANDLING AND INSTALLATION: ·TO MAINTAIN THE WIDTH OF CHAMBERS DURING SHIPPING AND HANDLING, CHAMBERS SHALL HAVE INTEGRAL, INTERLOCKING STACKING LUGS. ·TO ENSURE A SECURE JOINT DURING INSTALLATION AND BACKFILL, THE HEIGHT OF THE CHAMBER JOINT SHALL NOT BE LESS THAN 2”. ·TO ENSURE THE INTEGRITY OF THE ARCH SHAPE DURING INSTALLATION, a) THE ARCH STIFFNESS CONSTANT AS DEFINED IN SECTION 6.2.8 OF ASTM F2922 SHALL BE GREATER THAN OR EQUAL TO 400 LBS/IN/IN. AND b) TO RESIST CHAMBER DEFORMATION DURING INSTALLATION AT ELEVATED TEMPERATURES (ABOVE 73° F / 23° C), CHAMBERS SHALL BE PRODUCED FROM REFLECTIVE GOLD OR YELLOW COLORS. MATERIAL LOCATION DESCRIPTION AASHTO MATERIAL CLASSIFICATIONS COMPACTION / DENSITY REQUIREMENT D FINAL FILL: FILL MATERIAL FOR LAYER 'D' STARTS FROM THE TOP OF THE 'C' LAYER TO THE BOTTOM OF FLEXIBLE PAVEMENT OR UNPAVED FINISHED GRADE ABOVE. NOTE THAT PAVEMENT SUBBASE MAY BE PART OF THE 'D' LAYER. ANY SOIL/ROCK MATERIALS, NATIVE SOILS, OR PER ENGINEER'S PLANS. CHECK PLANS FOR PAVEMENT SUBGRADE REQUIREMENTS.N/A PREPARE PER SITE DESIGN ENGINEER'S PLANS. PAVED INSTALLATIONS MAY HAVE STRINGENT MATERIAL AND PREPARATION REQUIREMENTS. C INITIAL FILL: FILL MATERIAL FOR LAYER 'C' STARTS FROM THE TOP OF THE EMBEDMENT STONE ('B' LAYER) TO 18" (450 mm) ABOVE THE TOP OF THE CHAMBER. NOTE THAT PAVEMENT SUBBASE MAY BE A PART OF THE 'C' LAYER. GRANULAR WELL-GRADED SOIL/AGGREGATE MIXTURES, <35% FINES OR PROCESSED AGGREGATE. MOST PAVEMENT SUBBASE MATERIALS CAN BE USED IN LIEU OF THIS LAYER. AASHTO M145¹ A-1, A-2-4, A-3 OR AASHTO M43¹ 3, 357, 4, 467, 5, 56, 57, 6, 67, 68, 7, 78, 8, 89, 9, 10 BEGIN COMPACTIONS AFTER 12" (300 mm) OF MATERIAL OVER THE CHAMBERS IS REACHED. COMPACT ADDITIONAL LAYERS IN 6" (150 mm) MAX LIFTS TO A MIN. 95% PROCTOR DENSITY FOR WELL GRADED MATERIAL AND 95% RELATIVE DENSITY FOR PROCESSED AGGREGATE MATERIALS. ROLLER GROSS VEHICLE WEIGHT NOT TO EXCEED 12,000 lbs (53 kN). DYNAMIC FORCE NOT TO EXCEED 20,000 lbs (89 kN). B EMBEDMENT STONE: FILL SURROUNDING THE CHAMBERS FROM THE FOUNDATION STONE ('A' LAYER) TO THE 'C' LAYER ABOVE.CLEAN, CRUSHED, ANGULAR STONE AASHTO M43¹ 3, 357, 4, 467, 5, 56, 57 NO COMPACTION REQUIRED. A FOUNDATION STONE: FILL BELOW CHAMBERS FROM THE SUBGRADE UP TO THE FOOT (BOTTOM) OF THE CHAMBER.CLEAN, CRUSHED, ANGULAR STONE AASHTO M43¹ 3, 357, 4, 467, 5, 56, 57 PLATE COMPACT OR ROLL TO ACHIEVE A FLAT SURFACE.2,3 D C B A *TO BOTTOM OF FLEXIBLE PAVEMENT. FOR UNPAVED INSTALLATIONS WHERE RUTTING FROM VEHICLES MAY OCCUR, INCREASE COVER TO 24" (600 mm). SUBGRADE SOILS (SEE NOTE 4) PERIMETER STONE (SEE NOTE 5) EXCAVATION WALL (CAN BE SLOPED OR VERTICAL) SC-310 END CAP PAVEMENT LAYER (DESIGNED BY SITE DESIGN ENGINEER) 16" (405 mm) 18" (450 mm) MIN* 8' (2.4 m) MAX 6" (150 mm) MIN 6" (150 mm) MIN STONE DEPTH 12" (300 mm) MIN 12" (300 mm) TYP34" (865 mm)6" (150 mm) MIN ADS GEOSYNTHETICS 601T NON-WOVEN GEOTEXTILE ALL AROUND CLEAN, CRUSHED, ANGULAR STONE IN A & B LAYERS INSPECTION & MAINTENANCE STEP 1)INSPECT ISOLATOR ROW PLUS FOR SEDIMENT A.INSPECTION PORTS (IF PRESENT) A.1.REMOVE/OPEN LID ON NYLOPLAST INLINE DRAIN A.2.REMOVE AND CLEAN FLEXSTORM FILTER IF INSTALLED A.3.USING A FLASHLIGHT AND STADIA ROD, MEASURE DEPTH OF SEDIMENT AND RECORD ON MAINTENANCE LOG A.4.LOWER A CAMERA INTO ISOLATOR ROW PLUS FOR VISUAL INSPECTION OF SEDIMENT LEVELS (OPTIONAL) A.5.IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3. B.ALL ISOLATOR PLUS ROWS B.1.REMOVE COVER FROM STRUCTURE AT UPSTREAM END OF ISOLATOR ROW PLUS B.2.USING A FLASHLIGHT, INSPECT DOWN THE ISOLATOR ROW PLUS THROUGH OUTLET PIPE i)MIRRORS ON POLES OR CAMERAS MAY BE USED TO AVOID A CONFINED SPACE ENTRY ii)FOLLOW OSHA REGULATIONS FOR CONFINED SPACE ENTRY IF ENTERING MANHOLE B.3.IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3. STEP 2)CLEAN OUT ISOLATOR ROW PLUS USING THE JETVAC PROCESS A.A FIXED CULVERT CLEANING NOZZLE WITH REAR FACING SPREAD OF 45" (1.1 m) OR MORE IS PREFERRED B.APPLY MULTIPLE PASSES OF JETVAC UNTIL BACKFLUSH WATER IS CLEAN C.VACUUM STRUCTURE SUMP AS REQUIRED STEP 3)REPLACE ALL COVERS, GRATES, FILTERS, AND LIDS; RECORD OBSERVATIONS AND ACTIONS. STEP 4)INSPECT AND CLEAN BASINS AND MANHOLES UPSTREAM OF THE STORMTECH SYSTEM. NOTES 1.INSPECT EVERY 6 MONTHS DURING THE FIRST YEAR OF OPERATION. ADJUST THE INSPECTION INTERVAL BASED ON PREVIOUS OBSERVATIONS OF SEDIMENT ACCUMULATION AND HIGH WATER ELEVATIONS. 2.CONDUCT JETTING AND VACTORING ANNUALLY OR WHEN INSPECTION SHOWS THAT MAINTENANCE IS NECESSARY. CATCH BASIN OR MANHOLE SC-310 ISOLATOR ROW PLUS DETAIL NTS INSTALL FLEXSTORM INSERTS IN ALL UPSTREAM STRUCTURES WITH OPEN GRATES SC-310 CHAMBER SC-310 END CAP OPTIONAL INSPECTION PORT COVER ENTIRE ISOLATOR ROW PLUS WITH ADS GEOSYNTHETICS 601T NON-WOVEN GEOTEXTILE 5' (1.5 m) MIN WIDE ONE LAYER OF ADSPLUS125 WOVEN GEOTEXTILE BETWEEN FOUNDATION STONE AND CHAMBERS 4' (1.2 m) MIN WIDE CONTINUOUS FABRIC WITHOUT SEAMS TWO FOOT SUMP DEPTH. ELEVATIONS SHOWN ON PLAN SHEETS UNDERDRAIN DETAIL NTS A A B B SECTION A-A SECTION B-B DUAL WALL PERFORATED HDPE UNDERDRAIN ADS GEOSYNTHETICS 601T NON-WOVEN GEOTEXTILE STORMTECH END CAP ADS GEOSYNTHETICS 601T NON-WOVEN GEOTEXTILE STORMTECH CHAMBER OUTLET MANIFOLD STORMTECH END CAP STORMTECH CHAMBERS NUMBER AND SIZE OF UNDERDRAINS PER SITE DESIGN ENGINEER 4" (100 mm) TYP FOR SC-310 & SC-160LP SYSTEMS 6" (150 mm) TYP FOR SC-740, DC-780, MC-3500 & MC-4500 SYSTEMS FOUNDATION STONE BENEATH CHAMBERS FOUNDATION STONE BENEATH CHAMBERS NOMINAL CHAMBER SPECIFICATIONS SIZE (W X H X INSTALLED LENGTH)34.0" X 16.0" X 85.4" (864 mm X 406 mm X 2169 mm) CHAMBER STORAGE 14.7 CUBIC FEET (0.42 m³) MINIMUM INSTALLED STORAGE*31.0 CUBIC FEET (0.88 m³) WEIGHT 35.0 lbs.(16.8 kg) *ASSUMES 6" (152 mm) ABOVE, BELOW, AND BETWEEN CHAMBERS BUILD ROW IN THIS DIRECTION SC-310 TECHNICAL SPECIFICATION NTS OVERLAP NEXT CHAMBER HERE (OVER SMALL CORRUGATION) START END 34.0" (864 mm) 16.0" (406 mm) 90.7" (2304 mm) ACTUAL LENGTH 85.4" (2169 mm) INSTALLED LENGTH A A B C 9.9" (251 mm) 15.6" (396 mm) PART #STUB A B C SC310EPE06T / SC310EPE06TPC 6" (150 mm)9.6" (244 mm)5.8" (147 mm)--- SC310EPE06B / SC310EPE06BPC ---0.5" (13 mm) SC310EPE08T / SC310EPE08TPC 8" (200 mm)11.9" (302 mm)3.5" (89 mm)--- SC310EPE08B / SC310EPE08BPC ---0.6" (15 mm) SC310EPE10T / SC310EPE10TPC 10" (250 mm)12.7" (323 mm)1.4" (36 mm)--- SC310EPE10B / SC310EPE10BPC ---0.7" (18 mm) SC310EPE12B 12" (300 mm)13.5" (343 mm)---0.9" (23 mm) SC310EPE12BR 12" (300 mm)13.5" (343 mm)---0.9" (23 mm) ALL STUBS, EXCEPT FOR THE SC310EPE12B ARE PLACED AT BOTTOM OF END CAP SUCH THAT THE OUTSIDE DIAMETER OF THE STUB IS FLUSH WITH THE BOTTOM OF THE END CAP. FOR ADDITIONAL INFORMATION CONTACT STORMTECH AT 1-888-892-2694. * FOR THE SC310EPE12B THE 12" (300 mm) STUB LIES BELOW THE BOTTOM OF THE END CAP APPROXIMATELY 0.25" (6 mm). BACKFILL MATERIAL SHOULD BE REMOVED FROM BELOW THE N-12 STUB SO THAT THE FITTING SITS LEVEL. NOTE: ALL DIMENSIONS ARE NOMINAL PRE-FAB STUB AT BOTTOM OF END CAP WITH FLAMP END WITH "BR" PRE-FAB STUBS AT BOTTOM OF END CAP FOR PART NUMBERS ENDING WITH "B" PRE-FAB STUBS AT TOP OF END CAP FOR PART NUMBERS ENDING WITH "T" PRE CORED END CAPS END WITH "PC" NOTES •MANIFOLD SIZE TO BE DETERMINED BY SITE DESIGN ENGINEER. SEE TECH NOTE #6.32 FOR MANIFOLD SIZING GUIDANCE. •DUE TO THE ADAPTATION OF THIS CHAMBER SYSTEM TO SPECIFIC SITE AND DESIGN CONSTRAINTS, IT MAY BE NECESSARY TO CUT AND COUPLE ADDITIONAL PIPE TO STANDARD MANIFOLD COMPONENTS IN THE FIELD. •THE SITE DESIGN ENGINEER MUST REVIEW ELEVATIONS AND IF NECESSARY ADJUST GRADING TO ENSURE THE CHAMBER COVER REQUIREMENTS ARE MET. •THIS CHAMBER SYSTEM WAS DESIGNED WITHOUT SITE-SPECIFIC INFORMATION ON SOIL CONDITIONS OR BEARING CAPACITY. THE SITE DESIGN ENGINEER IS RESPONSIBLE FOR DETERMINING THE SUITABILITY OF THE SOIL AND PROVIDING THE BEARING CAPACITY OF THE INSITU SOILS. THE BASE STONE DEPTH MAY BE INCREASED OR DECREASED ONCE THIS INFORMATION IS PROVIDED. •NOT FOR CONSTRUCTION: THIS LAYOUT IS FOR DIMENSIONAL PURPOSES ONLY TO PROVE CONCEPT & THE REQUIRED STORAGE VOLUME CAN BE ACHIEVED ON SITE. *INVERT ABOVE BASE OF CHAMBER ISOLATOR ROW PLUS (SEE DETAIL/TYP 2 PLACES) PLACE MINIMUM 12.50' OF ADSPLUS125 WOVEN GEOTEXTILE OVER BEDDING STONE AND UNDERNEATH CHAMBER FEET FOR SCOUR PROTECTION AT ALL CHAMBER INLET ROWS BED LIMITS 97.58' 18 . 7 7 ' 86.61' 16 . 1 7 ' MAX FLOWINVERT*DESCRIPTIONITEM ON LAYOUTPART TYPE 0.90"12" BOTTOM PREFABRICATED END CAP, PART#: SC310EPE12B / TYP OF ALL 12" BOTTOM CONNECTIONS AND ISOLATOR PLUS ROWSAPREFABRICATED END CAP 0.90"12" BOTTOM PREFABRICATED END CAP, PART#: SC310EPE12BR / TYP OF ALL 12" ISOLATOR ROW PLUS CONNECTIONSBPREFABRICATED END CAP 0.90" 0.90" 24" x 12" ADS N-12 (24" PIPE) 24" x 12" ADS N-12 (12" PIPE)CMANIFOLD 0.90" 0.90" 24" x 12" ADS N-12 (24" PIPE) 24" x 12" ADS N-12 (12" PIPE)DMANIFOLD 9.0 CFS OUTOCS (DESIGN BY ENGINEER / PROVIDED BY OTHERS)ENYLOPLAST STRUCTURE 6.2 CFS IN(DESIGN BY ENGINEER / PROVIDED BY OTHERS)FNYLOPLAST STRUCTURE W/WEIR 6.2 CFS IN(DESIGN BY ENGINEER / PROVIDED BY OTHERS)GNYLOPLAST STRUCTURE W/WEIR 6" ADS N-12 DUAL WALL PERFORATED HDPE UNDERDRAINHUNDERDRAIN PROPOSED LAYOUT 60 STORMTECH SC-310 CHAMBERS 10 STORMTECH SC-310 END CAPS 6 STONE ABOVE (in) 6 STONE BELOW (in) 40 STONE VOID 2221 INSTALLED SYSTEM VOLUME (CF) (PERIMETER STONE INCLUDED) (COVER STONE INCLUDED) (BASE STONE INCLUDED) 1810 SYSTEM AREA (SF) 232.7 SYSTEM PERIMETER (ft) VOLUME (CF) ABOVE ELEV = 1041.332101 PROPOSED ELEVATIONS MAXIMUM ALLOWABLE GRADE (TOP OF PAVEMENT/UNPAVED):1051.01 MINIMUM ALLOWABLE GRADE (UNPAVED WITH TRAFFIC):1045.01 MINIMUM ALLOWABLE GRADE (UNPAVED NO TRAFFIC):1044.51 MINIMUM ALLOWABLE GRADE (TOP OF RIGID CONCRETE PAVEMENT):1044.51 MINIMUM ALLOWABLE GRADE (BASE OF FLEXIBLE PAVEMENT):1044.51 TOP OF STONE:1043.51 TOP OF SC-310 CHAMBER:1043.01 24" x 12" BOTTOM MANIFOLD INVERT (12" PIPE):1041.76 24" x 12" BOTTOM MANIFOLD INVERT (12" PIPE):1041.76 12" ISOLATOR ROW PLUS INVERT:1041.76 12" ISOLATOR ROW PLUS INVERT:1041.76 12" BOTTOM CONNECTION INVERT:1041.76 BOTTOM OF SC-310 CHAMBER:1041.68 UNDERDRAIN INVERT:1041.33 BOTTOM OF STONE:1041.18 24" x 12" BOTTOM MANIFOLD INVERT (24" PIPE):1041.76 24" x 12" BOTTOM MANIFOLD INVERT (24" PIPE):1041.76 A HG B C F D E INSPECTION PORT (TYP 2 PLACES) 12" (300 mm) HDPE ACCESS PIPE REQUIRED USE FACTORY PRE-FABRICATED END CAP PART #: SC310EPE12BR DE T A I L S C5.2 WA U K E E , I O W A RE V I S I O N S DR A F T E D : EN G I N E E R : CI V I L D E S I G N A D V A N T A G E DA T E AC C E S S S Y S T E M S PH O N E : ( 5 1 5 ) 3 6 9 - 4 4 0 0 41 2 1 N W U R B A N D A L E D R I V E UR B A N D A L E , I O W A 5 0 3 2 2 2111.901 05/09/2022 DATE: SHEET NUMBER: 1 NYLOPLAST DRAIN BASIN WITH WEIR (ST-1, ST-4, & ST-7) (5) ADAPTER ANGLES VARIABLE 0° - 360° ACCORDING TO PLANS (7) INTEGRATED DUCTILE IRON FRAME & SOLID COVER TO MATCH BASIN O.D. INLET PIPE (1) OUTLET WEIR (1) 24" - 30" DRAIN BASIN BODY 24" - 30" FRAME & SOLID COVER (2) (3) HIGH-FLOW/SECONDARY OUTLET FIRST-FLUSH OUTLET INLET PIPE (4) (6) VARIOUS TYPES OF INLET & OUTLET ADAPTERS AVAILABLE: 4" - 30" FOR CORRUGATED HDPE (ADS N-12/HANCOR DUAL WALL, ADS/HANCOR SINGLE WALL), N-12 HP, PVC SEWER (EX: SDR 35), PVC DWV (EX: SCH 40), PVC C900/C905, CORRUGATED & RIBBED PVC 1 - WEIR AVAILABLE FOR ALL 24" - 30" STRUCTURE OPTIONS (CUSTOM BASIN, ROAD & HIGHWAY, & CURB INLET). 2 - DRAIN BASIN TO BE CUSTOM MANUFACTURED ACCORDING TO PLAN DETAILS. RISERS ARE NEEDED FOR BASINS OVER 84" DUE TO SHIPPING RESTRICTIONS SEE DRAWING NO. 7001-110-065. 3 - HEIGHT OF WEIR TO BE DETERMINED BY ENGINEER. WEIR HEIGHT CANNOT EXCEED 84" DUE TO MANUFACTURING AND SHIPPING RESTRICTIONS. 4 - WEIR MANUFACTURED TO MINIMIZE LOSS OF OUTLET PIPE OPEN AREA. 5 - ADAPTERS CAN BE MOUNTED ON ANY ANGLE 0° TO 360°. TO DETERMINE MINIMUM ANGLE BETWEEN ADAPTERS SEE DRAWING NO. 7001-110-012. 6 - DRAINAGE CONNECTION STUB JOINT TIGHTNESS SHALL CONFORM TO ASTM D3212 FOR CORRUGATED HDPE (ADS N-12/HANCOR DUAL WALL), N-12 HP, & PVC SEWER (4" - 24"). 7 - FRAMES, GRATES, COVERS, HOODS, & BASE PLATES SHALL BE DUCTILE IRON PER ASTM A536 GRADE 70-50-05. SIDE SECTION & TOP VIEW: ENLARGED TO SHOW DETAIL THE BACKFILL MATERIAL SHALL BE CRUSHED STONE OR OTHER GRANULAR MATERIAL MEETING THE REQUIREMENTS OF CLASS I, CLASS II, OR CLASS III MATERIAL AS DEFINED IN ASTM D2321. BEDDING & BACKFILL FOR SURFACE DRAINAGE INLETS SHALL BE PLACED & COMPACTED UNIFORMLY IN ACCORDANCE WITH ASTM D2321. WEIR PLATE (TYP.) ST-1 SUMP/BOTTOM WEIR=1038.96 TOP WEIR=1044.85 16.5" ORIFICE OPENING IN WEIR PLATE, FL=1040.96 ST-4 SUMP/BOTTOM WEIR=1039.76 TOP WEIR=1042.76 WEIR BLOCKING SOUTH PIPE ST-7 SUMP/BOTTOM WEIR=1039.76 TOP WEIR=1042.76 WEIR BLOCKING NORTH PIPE 2 ROOF DRAIN CONNECTION PROPOSED BUILDING MAIN FLOOR: 15,997 S.F. UPPER FLOOR; 17,453 S.F. TOTAL: 33,450 S.F. FFE=1048.25 SE A L I C E ' S R O A D SE OLSON DRIVE PLANT SCHEDULE LA N D S C A P E P L A N L1.1 WA U K E E , I O W A RE V I S I O N S DR A F T E D : EN G I N E E R : CI V I L D E S I G N A D V A N T A G E DA T E AC C E S S S Y S T E M S PH O N E : ( 5 1 5 ) 3 6 9 - 4 4 0 0 41 2 1 N W U R B A N D A L E D R I V E UR B A N D A L E , I O W A 5 0 3 2 2 2111.901 05/09/2022 DATE: SHEET NUMBER: LANDSCAPE NOTES OPEN SPACE REQUIREMENTS PARKING LANDSCAPE REQUIREMENTS RESPREAD SOIL QUALITY RESTORATION / TOPSOIL MAIN LEVEL 0" SECOND LEVEL 15' -0" CURTAIN HT#2 27' -0" CURTAIN HT#1 12' -0" B.O. DECK#3 39' -0" T.O. ARCH. WALL 39' -6" MAX. HEIGHT 42' -0" 2" CULTURED STONE VENEER SIDING PANELS -COLOR #1 WOOD-LOOK PANELS SIDING PANELS -COLOR #2SIDING PANELS -COLOR #2 ON BOTH SIDES OF CENTER COLUMNS PORCELAIN PANEL FACADE STOREFRONT SIGNAGE PER OWNER STOREFRONT STOREFRONT CURTAIN WALL CURTAIN WALL CURTAIN WALL CURTAIN WALL OPAQUE PANELS STOREFRONT STOREFRONT STOREFRONT STOREFRONT STOREFRONT ST O R E F R O N T S T O R E F R O N T SPANDREL PANELS MID ROOF HT. 39' -10"10 " 10 " HE I G H T RO O F 1' - 8 " WOOD-LOOK SOFFIT MAIN LEVEL 0" SECOND LEVEL 15' -0" CURTAIN HT#2 27' -0" CURTAIN HT#1 12' -0" B.O. DECK#3 39' -0"T.O. STAIRS#1 38' -0" T.O. ARCH. WALL 39' -6" MAX. HEIGHT 42' -0" SIDING PANELS -COLOR #1 WOOD-LOOK PANELS SIDING PANELS -COLOR #2 ON BOTH SIDES OF CENTER COLUMNS PORCELAIN PANEL FACADE STOREFRONT GLASS GLASS GUARDRAIL GLASS GUARDRAIL WOOD-LOOK SOFFIT WOOD-LOOK ALUM. STRUCTURE @ 1' -0" o.c. BASIS OF DESIGN: KNOT WOOD WD. BEAM PORCELAIN PANEL FACADE - BEYOND HVAC SCREEN CURTAIN WALL GLASS PORCELAIN MID ROOF HT. 39' -10"HE I G H T RO O F 1' - 8 " 10 " 10 " MAIN LEVEL 0" SECOND LEVEL 15' -0" CURTAIN HT#2 27' -0" CURTAIN HT#1 12' -0" T.O. STAIRS#1 38' -0" T.O. ARCH. WALL 39' -6" MAX. HEIGHT 42' -0" PORCELAIN PANEL FACADE SIDING PANELS -COLOR #1 WOOD-LOOK PANELS GLASS GUARDRAIL STOREFRONT STOREFRONT GLASS2" CULTURED STONE VENEER ST O R E F R O N T STOREFRONT STOREFRONT PORCELAIN PORCELAIN MAIN LEVEL 0" SECOND LEVEL 15' -0" CURTAIN HT#2 27' -0" CURTAIN HT#1 12' -0" T.O. STAIRS#1 38' -0" MAX. HEIGHT 42' -0" PORCELAIN PANEL FACADE BEYOND SIDING PANELS -COLOR #1 STOREFRONT GLASS 2" CULTURED STONE VENEERPORCELAIN PANEL FACADE CURTAIN WALL GLASS STOREFRONT STOREFRONT STOREFRONT STOREFRONT 6' - 0 " FRONT RIGHT REAR LEFT f: 515.961.0468 THIS PLAN IS THE PROPERTY OF DOWNING CONSTRUCTION INC. ANY USE WITHOUT WRITTEN PERMISSION IS STRICTLY PROHIBITED! PLAN NO. = DWG. LIST REVISIONS ORIGINAL CONSTRUCTION DOCUMENT DRAWN BY: www.downingconstruct.com www.downingplanroom.com 509 East Scenic Valley Ave. Indianola, Iowa 50125 p: 515.961.5386 DE S I G N D E V E L O P M E N T P L A N ( S ) - N O T F O R C O N S T R U C T I O N Precon. Team DE L I V E R CO M M I T DE V E L O P DI S C O V E R / A N A L Y Z E A-202 Ac c e s s S y s t e m s - N e w B u i l d i n g St r e e t A d d r e s s An y t o w n , I o w a Z I P 90-111 08/31/2021 COLOR EXTERIOR ELEVATIONS 02/25/2022 - Updated DD Set 02/26/2022 - V.E. Option 03/03/2022 - DD Revisions --/--/---- --/--/---- --/--/---- SCALE:3/32" = 1'-0"1 COLOR - EAST (FRONT) ELEVATION EXTERIOR MATERIAL SELECTIONS NOTE: THESE SELECTIONS ARE PROVIDED TO SHOW "COLOR INTENT". FINAL SELECTIONS CAN/ OR WILL BE MADE BY THE OWNER AS THIS PROJECT PROGRESSES. - ROOFING: TPO ANY MANUFACTURER WHITE - - - - SIDING: NICHIHA - COLOR #1 ARCHITECTURAL BLOCK ILLUMINATION SERIES STACKED PATTERN COLOR: RAVEN (BLACK) VISIBLE FLASHINGS - - - - PORCELAIN PANEL FASCADE DALTILE PANORAMIC PORCELAIN HIDDEN FIXATION INSTALL SIZE: LARGE FORMAT COLOR: STATUARIO - - - CULTURED STONE VENEER CENTURION STONE LEDGE STONE COLOR: MOUNT RUNDLE TYPE: FIANDRE - - - CURTAIN WALL ENVELOPE OLDCASTLE BLDG. ENVELOPE COLOR: ANODIZED BLACK TYPE: RELIANCE 2 1/2" WIDE PROFILE - - - GLAZING/ DOOR TRIM & FLASHING FIRESTONE OR EQUAL COLOR: KYNAR MATTE BLACK TYPE: UNA-CLAD METAL 24 GAUGE MIN. - - - - WOOD-LOOK PANELS -FIBERON COMPOSITE CLADDING COLOR: T.B.D. (WALNUT) INCLUDES: VISIBLE FLASHINGS SCALE: 3/32" = 1'-0" 2 COLOR - WEST (REAR) ELEVATION SCALE: 3/32" = 1'-0" 3 COLOR - NORTH ELEVATION SCALE: 3/32" = 1'-0" 4 COLOR - SOUTH ELEVATION SCALE:1/4" = 1'-0"5 TRASH ENCLOSURE ELEVATIONS 60% OF GLASS, STONE, OR SIMILAR = 40% REMAINING FLAT METAL PANELS = (or SIMILAR) BUILDING DESIGN STANDARDS: 69 % 31 % CALCULATION %ALICES ROAD FACADE: (EAST) 45% OF GLASS, STONE, OR SIMILAR = 55% REMAINING FLAT METAL PANELS = (or SIMILAR) 56 % 44 % CALCULATION %OTHER RIGHT OF WAY FACADES: (SOUTH) ANY COMBINATION OF GLASS, STONE, FLAT METAL PANELS, OR SIMILAR CALCULATION %NOT RIGHT OF WAY FACADES: (WEST) GLASS, STONE, OR SIMILAR = REMAINING FLAT METAL PANELS = 62 % 38 % ANY COMBINATION OF GLASS, STONE, FLAT METAL PANELS, OR SIMILAR CALCULATION %NOT RIGHT OF WAY FACADES: (NORTH) GLASS, STONE, OR SIMILAR = REMAINING FLAT METAL PANELS = 56 % 44 % METAL PANELS TO MATCH BLACK BUILDING COLOR - FIRESTONE: UC-501 REVEAL FLUSH PANELS 2" CULTURED STONE VENEER TO MATCH BUILDING - - - - SIDING: NICHIHA - COLOR #2 ARCHITECTURAL BLOCK ILLUMINATION SERIES STACKED PATTERN COLOR: COTTON (WHITE) VISIBLE FLASHINGS - - STOREFRONT ENVELOPE KAWNEER or SIMILAR COLOR: ANODIZED BLACK PROFILE: 2"x4"