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Home My WebLink AboutR-295302ra LO N h N i 9 9 8 A I B I C j D I E I F I G I H I I ; J 7 6. The ESC facilities shall be inspected daily by the applicant / contractor and maintained as necessary to ensure their continued functioning_ 7. Performance of the selected measures shall be evaluated by the Project Engineer. Revisions or supplemental measures shall be implemented by the Contractor in a timely manner when so directed by the Project Engineer. 8. Following completion of the construction, The contractor is to fill In all interceptor swales and sediment traps and regrade to match existing contours. After acceptance 6 of the site grading, site shall be hydroseeded. SOD NOTES: 1. Sod shall be machine cut at a uniform soil thickness of 3/4 —inch at the time of 5 curing. Measurements for thickness shall exclude top growth and thatch. 2. Standard size sections of sod shall be strong enough to support their own weight and retain their size and shape when suspended by the end of a 3 foot section. 3. Sod shall not be harvested or transplanted when moisture content (excessively dry or wet) may adversely affect its survival. 4. Sod shall be harvested, delivered and installed within a period of 36 hours. 4 3 2 MULCHING NOTES: 1. Where straw mulch for temporary erosion control is required, it shall be applied at a minimum thickness of two inches. PLASTIC COVERING NOTES: * Plastic slope cover must be installed as follows: 1. Run plastic up and down slope, not across slope; 2. Plastic may be installed perpendicular to a slope if the slope length is less than 10 feet; 3. Minimum of 8 —inch overlap at seams. 4. On long or wide slopes, or slopes subject to wind, all seams should be taped; 5. Place plastic into a small (12 —inch wide by 6 —inch deep) slot trench at the top of the slope and backfill with soil to keep water from flowing underneath; 6. Place sand filled burlap or geotextile bags every 3 to 6 feet along seams and pound a wooden stake through each to hold them in place.; 7. Inspect plastic for rips, tears, and open seams regularly and repair immediately. This prevents high velocity runoff from contacting bare soil which causes extreme erosion; 8. Sandbags may be lowered into place tied to ropes. However, all sandbags must be staked in place. • Plastic sheeting shall have a minimum thickness of 0.06 millimeters. • If erosion at the toe of a slope is likely, a gravel berm, riprap, or other suitable protection shall be installed at the toe of the slope in order to reduce the velocity of runoff. EROSION AND SEDIMENTATION CONTROL NOTES: GENERAL NOTES: HYDROSEEDING NOTES: 1. Notes provided are intended to provide guidance for effective implementation of 1. All Hydroseeding areas shall be seeded with 'Standard Seed Mix' per measures the Contractor may elect to utilize. The measures cited are not an hydroseed specifications. Contractor shall hydroseed all disturbed areas. DESIGNED: J.E. inclusive or comprehensive listing. Ditching, berming, detention, or other measures Extent of hydroseeding to be field verified at time of installation_ may be required dependent on the Contractors work methods, weather, or other DRAWN: R.B. actual site conditions. 2. Seed beds planted between May 1 and October 31 will require irrigation and CHECKED: G.P. other maintenance as necessary to foster and protect the root structure. 2. At no time shall more than one foot of sediment be allowed to accumulate within APPROVED: — 2 a catch basin. All catch basins and conveyance lines shall be cleaned prior to paving. 3. For beds planted between October 31 and April 30, armoring of the seed GP The cleaning operation shall not flush sediment laden water into the downstream system. 1 bed will be necessary. (e.g., geotextiles, jute mat, clear plastic covering). 3. Stabilized construction entrances and wash pads shall be installed at the beginning of 4. Before seeding, install needed surface runoff control measures such as gradient REVISION construction and maintained for the duration of the project. Additional measures may be DATE terraces, interceptor dikes, swales, level spreaders and sediment basins. A B C D required to insure that all paved areas are kept clean for the duration of the project. 5. The seedbed shall be firm with a fairly fine surface, following surface 4. During the time period of November 1 through March 31, all project disturbed areas roughening. Perform all cultural operations across or at right angles to greater than 5,000 square feet that are to be left unworked for more than 12 hours the slope. shall be covered be one of the following cover measures: mulch, sodding or plastic covering. 6. Fertilizers are to be used according to suppliers recommendations. Amounts used should be minimized, especially adjacent to water bodies and wetlands. 5. Any area stripped of vegetation, including roadway embankments, where no further work is anticipated for a period of 15 days, shall be immediately stabilized with the approved 7. All hydroseed lawn and shrub beds shall receive a minimum 4" depth of ESC methods (e.g. seeding, mulching, netting, erosion blankets, etc.) specified topsoil. Topsoil shall also be used for berms. 7 6. The ESC facilities shall be inspected daily by the applicant / contractor and maintained as necessary to ensure their continued functioning_ 7. Performance of the selected measures shall be evaluated by the Project Engineer. Revisions or supplemental measures shall be implemented by the Contractor in a timely manner when so directed by the Project Engineer. 8. Following completion of the construction, The contractor is to fill In all interceptor swales and sediment traps and regrade to match existing contours. After acceptance 6 of the site grading, site shall be hydroseeded. SOD NOTES: 1. Sod shall be machine cut at a uniform soil thickness of 3/4 —inch at the time of 5 curing. Measurements for thickness shall exclude top growth and thatch. 2. Standard size sections of sod shall be strong enough to support their own weight and retain their size and shape when suspended by the end of a 3 foot section. 3. Sod shall not be harvested or transplanted when moisture content (excessively dry or wet) may adversely affect its survival. 4. Sod shall be harvested, delivered and installed within a period of 36 hours. 4 3 2 MULCHING NOTES: 1. Where straw mulch for temporary erosion control is required, it shall be applied at a minimum thickness of two inches. PLASTIC COVERING NOTES: * Plastic slope cover must be installed as follows: 1. Run plastic up and down slope, not across slope; 2. Plastic may be installed perpendicular to a slope if the slope length is less than 10 feet; 3. Minimum of 8 —inch overlap at seams. 4. On long or wide slopes, or slopes subject to wind, all seams should be taped; 5. Place plastic into a small (12 —inch wide by 6 —inch deep) slot trench at the top of the slope and backfill with soil to keep water from flowing underneath; 6. Place sand filled burlap or geotextile bags every 3 to 6 feet along seams and pound a wooden stake through each to hold them in place.; 7. Inspect plastic for rips, tears, and open seams regularly and repair immediately. This prevents high velocity runoff from contacting bare soil which causes extreme erosion; 8. Sandbags may be lowered into place tied to ropes. However, all sandbags must be staked in place. • Plastic sheeting shall have a minimum thickness of 0.06 millimeters. • If erosion at the toe of a slope is likely, a gravel berm, riprap, or other suitable protection shall be installed at the toe of the slope in order to reduce the velocity of runoff. Is ECONOMIC AND ENGINEERING SERVICES, INC. 10900 NE 4TH STREET, SUITE 1110 BELLEVUE, WASHINGTON 98004 PORTLAND, OR / BELLEVUE, WA / KENNEWICK, WA / OLYMPIA, WA J K FR L I M I N 1 0 1 P S 8 7 I 5 4 R=2953102 CONSTRUCTION RECORD DRAWING NOTICE These record drawings have been prepared based upon 2 . information contained in addenda, change orders, or other available construction information, and information provided by the Contractor, and by others. HDR has not verified the accuracy or completeness of the information provided to it and does not warrant the accuracy or completeness of these record drawings. Users of this information shall be solely responsible to verify any and all information represented herein prior to any such use CITYof the information. CIT 1 OF RENTON DATE: OCTOBER, 2003 1 "u Planning /Building /Public Works Dept. PROJECT NO. 3_01_358 MAPLEWOOD WATER TREATMENT AND GOLF COURSE IMPROVEMENTS REVISION No. 2 EROSION CONTROL NOTES SHT NO. DWG NO. C9 L M N W- 21353AA 416 SCANNED OCT 2 7 22311 SURVEYED: — SCALE: NONE VERTICAL: NAVD 1988 HORIZONTAL: NAD 1983/1991 DATUM Kennedy /Jenks Consultants 32001 32nd Ave. S., Suite 100 Federal Way, Washington 98001 1 DESIGNED: J.E. ONE INCH AT FULL E IF NOT ONE INCH SCALE ACCORDINGLY DRAWN: R.B. CHECKED: G.P. APPROVED: — 2 RECORD DRAWINGS RB 1/06 GP 1 ISSUED FOR CONSTRUCTION RB 10/0-' GP NO. REVISION BY DATE APPR A B C D E I F G H L 1 0 3' Is ECONOMIC AND ENGINEERING SERVICES, INC. 10900 NE 4TH STREET, SUITE 1110 BELLEVUE, WASHINGTON 98004 PORTLAND, OR / BELLEVUE, WA / KENNEWICK, WA / OLYMPIA, WA J K FR L I M I N 1 0 1 P S 8 7 I 5 4 R=2953102 CONSTRUCTION RECORD DRAWING NOTICE These record drawings have been prepared based upon 2 . information contained in addenda, change orders, or other available construction information, and information provided by the Contractor, and by others. HDR has not verified the accuracy or completeness of the information provided to it and does not warrant the accuracy or completeness of these record drawings. Users of this information shall be solely responsible to verify any and all information represented herein prior to any such use CITYof the information. CIT 1 OF RENTON DATE: OCTOBER, 2003 1 "u Planning /Building /Public Works Dept. PROJECT NO. 3_01_358 MAPLEWOOD WATER TREATMENT AND GOLF COURSE IMPROVEMENTS REVISION No. 2 EROSION CONTROL NOTES SHT NO. DWG NO. C9 L M N W- 21353AA 416 SCANNED OCT 2 7 22311