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HomeMy WebLinkAboutSurvey and Drafting Standardsrentonwa.gov/permitservices | developmentengineering@rentonwa.gov | 425-430-7240 12/18/2023 | Page 1 of 7 CITY OF RENTON Ι PERMIT SERVICES SURVEY AND DRAFTING STANDARDS SURVEY STANDARDS All surveys and survey reports shall be prepared under the direct supervision of a person registered to practfce land surveying under the provision of Chapter 18.43 RCW. All surveys and survey reports shall be prepared in accordance with the requirements established by the Board of Registratfon for Professional Engineers and Land Surveyors under the provisions of Chapter 18.43 RCW. The horizontal component of all surveys shall have as its coordinate base: The North American Datum of 1983/91. All horizontal control of projects must be referenced to or in conjunctfon with a minimum of two of the City of Renton’s Survey Control Network monuments. The vertfcal component of all surveys shall be based on NAVD 1988, The North American Vertfcal Datum of 1988, and tfed to at least one of the City of Renton’s Survey Control Network benchmarks. If there are two such benchmarks within 3,000 feet of the project site a tfe to both shall be made. The benchmark(s) used will be shown on the drawing. If a City of Renton benchmark does not exist within 3,000 feet of a project, one must be set on or near the project in a permanent manner that will remain intact throughout the duratfon of the project. Source of elevatfons (benchmark) will be shown on the drawing, as well as a descriptfon of any benchmarks established. CORNERS AND MONUMENTS At a point on a land boundary, at the juncture of two or more boundary lines, a monument is usually set at such points to physically reference a corner’s locatfon on the ground. AS-BUILT SURVEY All improvements required to be “as-built” (post constructfon survey) per City of Renton Codes, Title 4 Development Regulations and Title 9 Public Ways and Property, must be located both horizontally and vertfcally by a radial survey or by a statfon offset survey. The “as-built” survey must be based on the same base line or control survey used for the constructfon staking survey for the improvements being “as-built”. The “as-built” survey for all subsurface improvements should occur prior to backfilling. Close cooperatfon between the installing contractor and the “as- builtfng” surveyor is therefore required. All “as-built” surveys shall satfsfy the requirements of the City of Renton and shall be based upon control or base line surveys made in conformance with all requirements herein. The field notes for “as-built” shall meet all requirements and shall be submitted with stamped and signed “as-built” drawings which includes a statement certffying the accuracy of the “as-built”. MONUMENT SETTING AND REFERENCING All property or lot corners, established, or reestablished on a plat or other recorded survey shall be referenced by a permanent marker at the corner point. In situatfons where such markers are impractfcal or in danger of being destroyed, e.g. the front corners of lots, a witness marker shall be set. In most cases, this will be the extension of the lot line to a tack in lead in the curb. The relatfonship between the witness monuments and their respectfve corners shall be shown or described on the face of the plat or survey of record, e.g. “Tacks in lead on the extension of the lot side lines have been set in the curbs on the extension of said line with the curb.” DRAFTING STANDARDS 1.All plans shall be prepared on standard mylar sheets. The standard sheet size is ANSI “D” size, 22 inches x 34 inches and City of Renton approval block, shall be on all sheets. 2.The Professional Engineer’s seal, signature, address, and phone number shall be placed in the tftle block in the lower right portfon of the sheet. rentonwa.gov/permitservices | developmentengineering@rentonwa.gov | 425-430-7240 12/18/2023 | Page 2 of 7 SURVEY AND DRAFTING STANDARDS 3. The drawing shall be in ink or permanent photo mylar. No “stfcky-back” or pasted pieces shall be allowed. The base map showing existfng features shall be screened to one-half tone. 4. Use City of Renton Survey Control Network based on NAD 1983/1991 (horizontal) and NAVD 1988 (vertfcal) datums for survey reference. All projects shall be tfed to the City’s Survey Control Network, per the City of Renton Standard Details. All horizontal control for projects must be referenced to or in conjunctfon with a minimum of two of the City of Renton’s Survey Control Network monuments. All vertfcal controls shall be tfed to at least one of the City of Renton’s Survey Control Network benchmarks. 5. All existfng and proposed improvements shall be referenced to the City of Renton Survey Control Network. All horizontal control for projects must be referenced to or in conjunctfon with a minimum of two of the City of Renton’s Survey Control Network monuments, and conform to the City of Renton Standard Details. If a City of Renton benchmark does not exist within 3,000 feet of a project, one must be set on or near the project in a permanent manner that will remain intact throughout the duratfon of the project. Source of elevatfons (benchmark) will be shown on the drawing, as well as a descriptfon of any benchmarks established. 6. All existfng and proposed improvements shall be located and dimensioned to City of Renton survey monuments, monument lines or street centerlines. Dimensioning must be done by statfoning and offset from these control lines. 7. Scales: Use Horizontal Scale of 1” = 20’, and Vertfcal Scale of 1” = 10’, unless otherwise required or approved by the Technical Services Sectfon. (Note: complex utflity locatfons may require a larger scale plan to show the necessary detail). 8. Draw the plan so the North Arrow points to the lefl or to the top of the sheet. 9. Control line distances and features hall at no point have an error of 0.2 feet (scaled distance) on a 20-scale drawing. 10. Use the standard Washington State Chapter of the American Public Works Associatfon symbols as supplemented by current City of Renton Standard Details. 11. Match lines with matched sheet number shall be provided where plan is drawn on two or more sheets. Where plan is shown on three or more sheets, include a total site plan key map at scale 1” = 100’ or 1” = 200’ to cross reference portfons of the project with their corresponding plan sheet locatfon. 12. All division or phase lines shall be indicated showing proposed limits of constructfon. 13. Existfng and proposed topography contours shall cover the entfre site and a minimum of 30’ beyond the site boundary. Existfng topography should be screened. Topography contours shall be shown at 2-foot intervals (5-foot intervals for slopes greater than 15%; 10-foot intervals for slopes greater than 40%). Elevatfon labeling shall be shown at 10-foot intervals, maximum. 14. Show and clearly label property lines (with distances and bearings), right-of-way lines, sensitfve areas, setbacks and all existfng and proposed easements with their recording numbers. Show existfng and proposed building footprints. 15. Plans shall include a key for abbreviatfons and a legend for symbols where such are used. In additfon to the survey and drafling standards above, the following informatfon should be included within utflity and transportatfon plans as appropriate: PLAN, PROFILE AND CROSS SECTION INFORMATION REQUIRED (GENERAL) 1. Each submittal shall contain the follow­ing project informatfon on the cover sheet or first sheet: • Title: Project name (add explana­tory note if project name has changed). • Table of Contents (if more than 3 sheets). • Vicinity Map (Scale sufficient to cover project limits on one sheet or 1" = 200', whichever is greater). rentonwa.gov/permitservices | developmentengineering@rentonwa.gov | 425-430-7240 12/18/2023 | Page 3 of 7 SURVEY AND DRAFTING STANDARDS • General descriptfon of site, includ­ing Quarter Sectfon, Town­ship and Range. • Name and phone number of archi­tect and/or engineering firm preparing plans. • City of Renton Permit Number incorporated into the tftle block on all sheets. 2. Organize the plans such that they are separated into type of improvement and drawing order. Each improvement type should include all plans, profiles, notes, sectfons, details, schedules, diagrams, etc. for that facility. The required order of drawings is as follows: • Cover sheet drawing. • Temporary Erosion and Sediment Control Plans. • Removal/grading/paving/storm drainage drawings (large projects may require separate removal/paving drawings). • Structure/retaining wall drawings associated with civil improvements. • Constructfon erosion control drawings. • Sanitary sewer drawings. • Water systems drawings. • Street lightfng drawings. • Traffic signals drawings. • Signing/channelizatfon drawings. • Landscaping drawings (for right-of-way landscaping). • Traffic control (detouring and/or constructfon sequencing) plans. See City of Renton website for standards for Traffic Control Plans. • Miscellaneous drawings. • Composite utflity drawings. 3. Existfng Improvements and Topography: Show all existfng underground and surface improvements and topography in proximity to the project. The infor­matfon must be shown for the full width of the right-of-way or the easement and for a sufficient distance on either side of the right-of-way or easement to show possible impacts on adjacent propertfes and/or the relatfonship to related facilitfes. Informatfon on existfng surface and underground City of Renton facilitfes may be obtained from the sixth floor informatfon counter or City of Renton Maps (COR Maps). Other utflity informatfon may be obtained from the respectfve utflity owners (i.e. Puget Sound Power and Light, U.S. West, Washington Natural Gas, etc.). 4. Include a composite utflity plan sheet showing existfng utflitfes (half tone) and all new utflitfes. Scale should be 1" = 50'. Composite utflity plan should indicate all utflity crossings and call-out invert elevatfons of pipelines at all crossing points. Utflitfes of concern include water, sanitary sewer, storm drainage, power, cable TV, gas, telephone, street lightfng, traffic signal wiring, signal inter­connect and sign wiring. 5. Label call-out for each sectfon or detail in the plans. Sectfon and detail call-outs should be shown on both the plan and the sectfon detail and should include assigned sectfon/detail numbers and plan sheet locatfon number. 6. Sewer, Water and Drainage Improve­ments: Provide profiles of all proposed sewer, water and drain lines. Show existfng underground improvements within ten (10) feet of where they cross or connect to the new improvements. Show the storm water drainage discharge point to a public system or natural water course. Provide drainage system details whether or not detentfon of storm water is required. 7. Grades: All profile and cross sectfons must show the proposed as well as the existfng grade. rentonwa.gov/permitservices | developmentengineering@rentonwa.gov | 425-430-7240 12/18/2023 | Page 4 of 7 SURVEY AND DRAFTING STANDARDS 8. All watermains are required to be within utflity easements granted to the City of Renton in a form acceptable to the utflity. Easement widths for watermains shall be 15 feet minimum width and shall include area sufficient for all necessary appurtenances such as hydrants, valves, meters, blocking, etc. Easements shall be shown on the water­ main plan sets. (See Easement Criteria Sectfon). 9. Sanitary sewers and storm drain lines not within street right-of-way shall be within easements granted to the City of Renton in a form acceptable to the Utflity. The easement widths will vary according to pipe diameter, but shall not be less than 15 feet wide. Easements shall be shown on the sanitary sewer and/or storm drainage plan sheets. (See Easement Criteria Sectfon). 10. Submit electronic copy (.pdf format) of the drainage report in accordance with RMC 4-6-030K.3 11. Incorporate City of Renton storm water, sanitary sewer, water and temporary erosion control plan notes into appropriate plan sheets, which can be found on the City of Renton website on the City of Renton Standard Details page. 12. Statfoning shall be provided on all centerlines and reference lines. All intersectfng street centerlines, utflity crossings, right-of-way lines, property lines, railroad crossings, drainage structures and signal and light poles shall be referenced by statfon and offset. Curve date shall be provided for road­way centerline and right-of-way curves. All PC's, PT's, PRC's, PCC's and AP's shall be statfoned and offset. In additfon to the items listed above, the following should be included within the plans: STORM WATER UTILITY PLANS 1. Label all manholes, clean outs and catch basins in sequentfal number. Label rim and invert elevatfons and catch basins and manhole size and type. 2. Include flow directfon arrows on all storm lines. 3. Label pipe size, length, material and slope. 4. Include datum and benchmark informatfon on each plan and/or profile sheet. 5. Show spot elevatfons of pavement in parking lots, and runoff flow directfon arrows. 6. Show roof leaders and footfngs drains connectfng into conveyance system. 7. Show all stub-out locatfons for future connectfons. 8. Include sectfon details for rockeries in grading/paving plans. 9. Show the following for all storm water facilitfes: • Show and label at least two cross-sectfons through stormwater facility. One cross-sectfon shall show the control structure. • Show locatfon and detail of emergency overflows and spillways. • Provide invert elevatfons of all pipes, inlets, tanks, vaults and spot elevatfons of the pond bottom. Call out surface water facility volume and dimensions, and design surface elevatfon. • Provide plan and sectfon views and details of all rock protectfon and energy dissipaters. • Sectfon and plan view on restrictor/control structure must be shown and adequately detailed, including size and elevatfon of orifices. • Show length, width, and bottom width dimensions for all bio-filtratfon, water quality swales and storm water conveyance swales. Include sectfonal view, showing side slopes and design depth of flow. • Include seeding material informatfon. 10. The Temporary Erosion and Sedimentatfon Control (TESC) plan should show the following: rentonwa.gov/permitservices | developmentengineering@rentonwa.gov | 425-430-7240 12/18/2023 | Page 5 of 7 SURVEY AND DRAFTING STANDARDS • Tree protectfon details and locatfons. • Proposed topography. • Clearing limits. • Locatfon and details for constructfon entrance. • Specify the constructfon sequence. • Provision for perimeter runoff control at property boundaries. • Show all cut and fill slopes, indicatfng the top and bottom of slope catch lines. • Provide all necessary details to illustrate the intent of the TESC plan. • Show interim catch basin sedimentatfon protectfon. • Show all drainage pipes and ditches. Include pipe inverts, minimum slopes and cover, and ditch grades and dimensioning. • Specify areas to receive special treatment such as jute matting, rock lining, sod, mulching and seeding. • Provide all necessary dimensioning and details for sediment traps, berms, pond storage, pond outlet structure, filtering devices, inlet/outlet stabilizatfon techniques, control/restrictor devices, rock check dams, silt fabric fences, pond inlet baftfes, and other design elements. WASTE WATER UTILITY PLANS 1. Label all manholes and clean outs in sequentfal number. Label rim and invert elevatfons and manhole size and type. 2. Include flow directfon arrows on all sewer lines. 3. Label pipe size, length, material and slope. 4. Include datum and benchmark informatfon on each plan and/or profile sheet. 5. Show spot elevatfons of pavement in parking lots, and runoff flow directfon arrows. 6. Show all stub-out locatfons for future connectfons and side sewer connectfon stubs. WATER UTILITY PLANS 1. Show "before" and "afler" connectfon details for watermain connectfons. Refer to City of Renton Standard Details for samples of connectfon details. 2. For utflity crossings which involve vertfcal offsets in water line, provide detail showing the crossing, including vertfcal bends, blocking, shackle rods, and pipe invert elevatfons. 3. Watermains south of SW Sunset and west of SR 167 will be polywrapped. 4. Show locatfons of vertfcal crosses for polypigging of new mains. 5. Call out types of fitting connectfons (MJ = mechanical joint, FL = flanged; PE = pain end; RJ = restrained joint). 6. Hydrants shall be free and clear of all structures. Landscaping or other interferences for a minimum of 3 feet of clearance around the hydrant. 7. Show Renton details for the following items: • Fire hydrant. • Appropriately sized water services and meters. • Compound meter, when used. rentonwa.gov/permitservices | developmentengineering@rentonwa.gov | 425-430-7240 12/18/2023 | Page 6 of 7 SURVEY AND DRAFTING STANDARDS • Temporary or permanent blow-offs, when used. • 12-inch gate valve or > 16-inch butterfly valve in vault, when used. • Air-vacuum release valve, when used. • Irrigatfon water double check valve assembly, when used. • Detector double check valve assembly for fire sprinkler vault, when used. • Details of watermain connectfons. Note that the correct detail(s) should be selected. 8. Plans for watermains located in easements over, on and across private property shall contain the following informatfon and standards: • Locate watermains in driving lanes (not under parking stalls). • Show locatfons of all hydrants (proposed and existfng) within 300-feet of site. • Show locatfon and size of Detector Double Check Valve assembly for fire sprinkler vaults. Also, show locatfon of fire department connectfons, directfon of pumper ports, and distance from curb. • Show size and locatfon of domestfc water meters and of irrigatfon water meters and the associated double check valve assembly. • Show locatfon of carports, dumpsters, and mailboxes. • Show primary hydrant within 150-feet of structure, and no closer than 50-feet. Hydrant leads over 50-feet long shall be minimum 8-inch diameter. TRANSPORTATION PLANS Roadway improvements include but are not limited to paving, curbs, gutters, sidewalks, driveways, curb ramps, storm drainage structures, street lightfng, traffic signals, signing, channelizatfon, ADA ramps, and landscaping plans. 1. Establish base line or centerline adequately dimensioned from at least two known reference points or monuments approved by the City of Renton. 2. Adequately dimension all improvements off of established base line or centerline. 3. All plans shall be statfoned, with true point of origin for statfoning dimensioned from monument. If 0+00 statfoning point does not coincide with monument, tfe in with statfon equatfon. Statfoning should increase from lefl to right or bottom to top. 4. When possible street improvements in right-of-way should have profile drawing beneath plan view. 5. Provide adequate cross-sectfons to assure that proposed improvements will correspond with existfng conditfons, and with City requirements for improvements. 6. Provide adequate informatfon on roadway geometry, including PC, PT, PRC, PCC, AP, radius, curve angle, tangent length, curve length and all other informatfon required to adequately establish the geometry. Provide adequate informatfon on roadway profile, including vertfcal curve approach grades and length of vertfcal curve and all other informatfon required to adequately establish the profile. 7. Provide spot elevatfons and slope call-outs where improvements abut with existfng pavement. Show top of curb elevatfon at suitable intervals along curbline, and all break in grades. 8. Provide profile drawings for all private roads, and for driveways whose slope exceeds 5%. 9. Include all appropriate City of Renton Standard Details in plans. 10. Show bearings and distances for all new roadway alignments. 11. Clearly call-out existfng and proposed right-of-way, and dimension. rentonwa.gov/permitservices | developmentengineering@rentonwa.gov | 425-430-7240 12/18/2023 | Page 7 of 7 SURVEY AND DRAFTING STANDARDS 12. Show all existfng and proposed ease­ment on plans. 13. Design street lightfng, signals, signing and channelizatfon, per City standards, and include appropriate City of Renton Standard Details. Also include table of wiring schedule, wiring schematfc, table for luminaire schedule with latftude and longitude of each street light, notes, and details. 14. Traffic control plan is required on all projects and must be approved by the City of Renton. 15. On composite utflity plan, show over­head and underground electrical and communicatfon facilitfes. 16. Plans for structures shall be fully dimen­sional and shall show complete constructfon elevatfons. All plans shall provide the necessary detail required for preparatfon of bar schedules and bar placement without the necessity of making separate shop or placement drawings. Structural steel use shall include such detail that shop drawings can be prepared without additfonal design. EASEMENT CRITERIA Utflitfes and roadway improvements that are to be a part of the public system and represent a part of the City's capital improvements shall be constructed in public rights-of-way or easements. Easements granted to the City of Renton for the placement of public utflitfes shall be in a form acceptable to the City. The following informatfon shall be provided for all easements: 1. Legal descriptfon, which shall be certffied by a registered Land Surveyor or Professional Engineer if it is a Metes & Bounds or a Centerline based descriptfon. 2. A scaled drawing on 8 ½" by 11" sheet showing the easement in a clear legible manner meetfng King County recording standards. • Then a separate right of way plan shall be prepared giving the following plan informatfon: • Easement limits, easement centerline, centerline statfoning, bearings and distances. • Locatfon of the utflity within the easement. • Distance from the utflity line to the easement centerline. • Centerline statfoning and offset for all valves, fittings, meters, hydrants, vaults, manholes, blow-off assemblies, bends, outiall structures, utflity crossings, intersectfon with street centerlines and property lines. • Watermains, sanitary sewers and storm drain lines shall normally be located within center of easement if possible. If not, please identffy if not the case. • Easements for utflitfes shall be fifleen (15) feet in width or greater if required by the Utflity Director to accommodate larger pipe sizes, access needs or other special requirements.