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HomeMy WebLinkAboutC302_09-09-20TRUCK CONCRETE WASHOUT FROM PROJECT: CLIENT: LOCATION: FILE NAME.: SCALE: DATE: ENG'D BY: DRAWN BY: SHEET NO.: PLUMLEY WWW.PLUMLEYENG.COM FAX: (315) 638-9740 TELEPHONE: (315) 638-8587 BALDWINSVILLE, NY 13027 8232 LOOP ROAD PLUMLEY ENGINEERING, P.C. Civil and Environmental Engineering ENGINEERING REVISIONS:DATE:BY: A consent of Plumley Engineering, P.C. All common law rights of copyright are hereby specifically reserved. not be copied, reproduced, used or implemented in any way, in part or in whole, without the written These plans & specifications are the property of Plumley Engineering, P.C. These documents may DWG. TITLE: Note: No alteration permitted hereon except as provided under Section 7209 Subdivision 2 of the New York State Education Law.© Plumley Engineering, P.C. 2020 EROSION & SEDIMENT CONTROL DETAILS & SPECIFICATIONS PROJECT No.: CHECKED BY: FLOW 16" MIN.20" MIN.4" MIN. 1.5' MAX. 3' MIN. 1' MIN. WITH GRATE DROP INLET 2x4 WOOD STAKE 2x4 WOOD FRAME AT CORNERS GATHER EXCESS Not To Scale Not To Scale FABRIC FILTER GROUND UNDISTURBED SPACED 10' C-C MIN. OR 2"x2" HARDWOOD STEEL "T" OR "U" TYPE 36" MIN. FENCE POST COMPACTED SOIL FILTER CLOTH OVER MESH OPENING) W/ (14 GA. MIN., MAX. 6" WOVEN WIRE FENCE Silt Fence Detail "bulges" develop in the silt fence. 4. Maintenance shall be performed as needed and material removed when by six inches and folded. 3. When two sections of filter cloth adjoin each other they shall be overlapped prefabricated unit is utilized, use Geo Fab, Envirofence, or approved equal. 2. Filter cloth shall be Mirafi 100X, "Stablelinka T140N" or approved equal. If a staples. 1. Woven wire fence to be fastened securely to fence posts with wire ties or Notes: 7. Maximum drainage area 1 acre. 6. A 2"x4" wood frame shall be completed around the crest of the fabric for overflow stability. securely fastened to the stakes and frame. 5. Fabric shall be embedded 1 foot minimum below ground and backfilled. It shall be fabric for support. Spans greater than 3 feet may be bridged with the use of wire mesh behind the filter 4. Space stakes evenly around inlet 3 feet apart and drive a minimum 18 inches deep. 3. Stakes will be standard 2"x4" wood or metal with a minimum length of 3 feet. overlapped to the next stake. 2. Cut fabric from a continuous roll to eliminate joints. If joints are needed they will be used for short term applications. 1. Filter fabric shall have an equivalent opening size (EOS) of 40 to 85. Burlap may be Notes: Filter Fabric Inlet Protection Erosion & Sediment Control Specifications Soil Restoration Requirements FABRIC GROUND SURFACE FABRIC BURIED C302 9" MIN. ** Per "Deep Ripping and De-Compaction, DEC 2008". function like a mini-subsoiler. narrow slit in the soil, a roller with many spikes making indentations in the soil, or prongs which * Aeration includes the use of machines such as tractor-drawn implements with coulters making a D. Apply topsoil to a depth of 4-inches & vegetate as required by Plans. C. Rock-pick until uplifted stone/rock materials of 4 inches and larger size are cleaned off the site. into subsoils. B. Till compost into subsoil to a depth of at least 23 inches, mixing and circulating air and compost A. Apply 3-inches of compost over subsoil. rough grade and the following soil restoration steps applied: 8. During periods of relatively low to moderate subsoil moisture, the disturbed subsoils are returned to be converted to pervious area. 7. Soil restoration is required on redevelopment projects in areas where existing impervious area will struction activities, construct a single-phase operation fence area. equipment from crossing these areas. To protect newly installed practice from any ongoing con- but may be applied to enhance the reduction specified for appropriate practices. Keep construction 6. Restoration is not required in areas where runoff reduction and/or infiltration practices are applied, walls. especially in a zone 5-25 feet around buildings but not within a 5-foot perimeter around foundation 5. Apply full soil restoration (de-compaction and compost enhancement) in heavy traffic areas on-site, for HSG C&D. 4. In areas of cut or fill, aerate and apply 4-inches of topsoil for HSG A&B. Apply full soil restoration** ongoing construction activities. Hydrologic Soil Groups (HSG) C&D, aerate* before applying topsoil. Protect the area from any 3. In areas where only topsoil is stripped, with no change in grade, apply 4-inches of topsoil. For 2. Restoration is not required where there is minimal soil disturbance (i.e., clearing and grubbing). 1. Restoration is not permitted where there is no soil disturbance. Natural features are to be preserved. MIN. 6" INTO GROUND EMBED FILTER CLOTH As Noted 2020012 JFC JJL JFC SONBYRNE SALES, INC. CITY OF ITHACA, TOMPKINS COUNTY, NEW YORK ITHACA BYRNE DAIRY C302 June 2020 For Construction.JFC C. Submit maintenance instructions for fertilizing and lawn care. B. Immediately re-seed areas which do not establish vegetation. areas until vegetation has been established. A. Identify seeded areas with stakes, string and brightly colored flagging. Protect seeded 3. All seeded areas shall be maintained as follows: functionality of the devices. Sediment around the silt fencing should be removed, as needed, to maintain the for evidence of off-site sediment tracking. D. Construction Entrances: All location where vehicles enter or exit the site will be inspected from entering receiving waters. erosion control measures are effective in preventing significant amounts of pollutants C. Discharge Points: Discharge points or locations will be inspected to determine whether up-slope side of erosion and sediment control measures. effectiveness in trapping sediments. Sediment will be removed from the upstream or identified in the Plan will be inspected regularly for proper positioning, anchoring and B. Structural Controls: Silt fencing and all other erosion and sediment control measures will be conducted in that area at least once every month throughout the life of the project. entering the drainage system. After a portion of the site is finally stabilized, inspections exposed to precipitation will be inspected for evidence of, or the potential for, pollutants A. Stabilization Measures: Disturbed areas and areas used for storage of materials that are The contractor will designate a qualified person(s) to perform the following inspections: should be completed immediately upon discovery. 2. Inspections of all devices should be completed weekly and after each rainfall event. Repairs inspected regularly after seed germination to ensure complete coverage of exposed areas. permanent and temporary erosion control facilities. Areas that have been seeded will be 1. During construction, the contractor will be responsible for inspecting and maintaining the Inspection and Maintenance Procedures: paving is completed. 5. Remove temporary erosion control devices once vegetation has been established and/or 4. Install utilities. Contractor is to protect all utilities from sediment infiltration. during the grading operations. fencing are shown on the plan. Additional swales/dikes shall be constructed as required to provide positive drainage into the basins. Preliminary locations of the swales and silt B. During grading operations, install and maintain temporary drainage swales and silt fencing A. Provide silt fencing around perimeter of staged topsoil and/or temporarily staged piles of fill. 3. Begin earthwork and grading operations (all areas). 2. Install silt fence as indicated. construction site. 1. Construct or utilize existing stabilized construction entrance for access to and from the Construction Sequence: of the site in which work will be continuous beyond 14 days (i.e. the building footprint). 3. No disturbed area shall remain exposed for more than 14 calendar days, except for portions until the disturbed lands in that area are stabilized. disturbance activities. The devices providing protection to a given area shall not be removed 2. Erosion and sediment control measures shall be provided prior to beginning any land to discuss the Erosion and Sediment Control Plan. 1. One week prior to beginning earthwork operations, a pre-construction meeting will be held 09/09/20 Not To Scale CL 5 1 50' MIN.6"FABRIC FILTER PAVEMENT EXISTING PAVEMENT EXISTING 1 2 1 2 SAME ELEVATION CREST 1.5' B' B A' A 1 1 1 1 Section Plan Not To Scale NOTE 3) (IF NEEDED-SEE MOUNTABLE BERM GROUND EXISTING GROUND EXISTING MIN. (TYP.) RADIUS 10' TOE FILTER FABRIC 24' MIN.STONE 1" - 4" the stabilized construction entrance shall be abandoned, and if necessary, removed. 6. At the conclusion of construction, beyond which little or no sediment will be tracked onto public roads, 5. Inspection and needed maintenance shall be provided after each rain event. or tracked onto public roads must be removed immediately. repair and/or cleanout of any measures used to trap sediment. All sediment spilled, dropped, washed public roads. This may require periodic top dressing with additional stone as conditions demand and 4. The entrance shall be maintained in a condition which will prevent tracking or flowing of sediment onto If piping is impractical, a mountable berm with 5:1 slopes will be permitted. 3. All surface water flowing or diverted toward construction entrances shall be piped across the entrance. 2. Filter fabric will be placed over the entire area prior to placing of stone. 1. Stabilized construction entrances shall be placed at all points of construction ingress and egress. Notes: Stabilized Construction Entrance Check Dam Detail 1 C302 1 C302 Section B-B'Section A-A' Profile @ CENTER 24" MAX. SPACING = CHECK DAM HEIGHT/SWALE SLOPE SPACING VARIES DEPENDING ON CHANNEL SLOPE 7. Filter Fabric: Mirafi 500X woven geotextile or approved equal. 6. Stone Size: Use graded stone 2 to 9 inches in size (NYS DOT light stone fill meets these requirements). damage or blockage from displaced stone. 5. Ensure that channel appurtenances such as culvert entrances below check dams are not subject to as appropriate. 4. Protect the channel downstream of the lowest check dam from scour and erosion with stone or liner 3. Extend the stone a minimum of 1.5 feet beyond the ditch banks to prevent cutting around the dam. the same elevation as the toe of the upstream dam. 2. Set spacing of check dams to ensure that the elevation of the crest of the downstream dam is at shown in the plan. 1. Stone will be placed on a filter fabric foundation, and shall comply with the lines, grades and locations :Construction Specifications 1' 2' 1' 3' SEDIMENT POOL TEMPORARY 1' MIN.2' MAX.1' Not To Scale (1' MIN. THICKNESS) FINE GRAVEL FACE 3" STONE (OPTIONAL) WIRE MESH 4. Hardware cloth or 1/2" wire mesh may be placed over grate. shown on the drawing. 3. A 1-foot thick layer of the filter stone will be placed against the 3-inch stone as 2. Use clean stone or gravel (1/2-3/4-inch in diameter) placed on a 2:1 slope or flatter. 1. To be used once stone sub-base/pavement has been placed around structure. Construction Specifications: Stone Inlet Protection Detail Not To Scale (6" MIN.) VARIES AS NEEDED Concrete Washout Area Detail 10 MIL PLASTIC LINER MIN. (TYP.) EMBED 6" 4. Coordinate elimination of washout area at end of project with Sonbyrne Sales. will be allowed to harden, with the hardened product broken up and disposed of properly. 3. Washout area to be cleaned once concrete in area reaches 75% of the holding capacity. Concrete waste 2. Plastic liner to be free of holes, tears, or other defects that compromise the impermeability of the material. Area shall be lined with 10 mil plastic liner, with all debris and runoff maintained on site. 1. Contractor to provide a concrete wash-out area in location that will not affect any receiving water bodies.