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23832 HIGHWAY 99.PDFiiiiiiiiiiiiii 11659 23832 HIGHWAY 99 Memorandum To: From: 10230.NE Points Drive Copies: Suite 400 Krkland, WIA 98033 Phone (425) 822-4446 Date: Fax (425) 827-9577 Subject: Project No.: Introduction Windi Shapley, PE Greg Laird, PE Jessica Collins, EIT Dan Dawson; File February 1, 2008 Community Transit Smdft Bus Rapid Transit Project Flow Control and Water Quality Treatment Requirements 30986M This memorandum presents the methodology and results of determining the flow control and water quality treatment requirements for the Community Transit Suift Bus Rapid Transit (BRT) Project. This project has transit stops at 18 intersections along the SR 99 corridor from Everett Station in Everett, Washington south to 238th in Edmonds, Washington Snohomish County. See Figure 1.0 for the project corridor location. Although the Community Transit Smdff BRT project has stations within four separate jurisdictions — City of Edmonds, City of Everett, City of Lynnwood, and Snohomish County —all matters related to stormwater management all four jurisdictions fall under the common *jurisdiction, the Washington Department of Ecology (Ecology). The 2005 Ecology Stormwater Management Manual for Western Washington (SMMWW) was applied to the entire project corridor for consistent stormwater regulatory requirements. The Ecology SMMWW requires the determination of Threshold Discharge Areas (FDA) for every BRT station 'in order to detern mie existing hydrologic and hydraulic conditions. Each TDA must be mapped based on the existing onsite drainage patterns and the locations of natural or marimade discharge points. For this preliminary analysis the "one -quarter -mile rule" (defined below) was applied to determine if any BRT station had the potential to be in the same TDA Yielding a "worst case scenario" for the total new and replaced impervious area, which determines flow control and water quality requirements. Regulatory Reference The guidelines used to determine the worst case scenario extent of the TDA.boundaries are provided by the SMMWW. The SMMWW guidelines define a TDA as "an onsite area draining to a single natural discharge location or multiple natural discharge locations that combine within one- K:\project\30900\30986M\Reports\WQ and Flow Control Memo\WQ and Flow Control Memo-012908.doc Windi Shapley, PE Page 2 Communto Transit Swift BRT Flow Control and WaterQuafio Treatment Februag 1, 2008 quarter mile downstream (as determined by the shortest flow path)." This is referred to as the "one- quatter-mile rule" for the remainder of this memo. Onsite area is defined as "die entire property that includes the proposed development." The one -quarter mile rule was used to determine whether multiple BRT stations are within a single TDA and result in the maxuinurn amount of area for consideration of flow control and water quality treatment facilities. Flow control and water quality requirement thresholds within a given TDA, or in this case the worst case scenario, are stated in Volume 1 in the SMMWW Chapter 2 Minimum Requitements for New Development and Redevelopment. Specific assumptions and best engineering 'judgments were made to assist designers in determining the TDA boundaries for the unique hydrologic conditions of each BRT stop. Flow Control Requirements In Volume I of the SMMWW Chapter 2, Table 2.2 Flow Control Requirements by Threshold Discharge Area was used to determine if flow control facilities were required 'in the worst case scenario. Flow control is required in a TDA if the effective impervious surface affected is more than or equal to 10,000 square feet. Effective impervious surface is defined as an ffinpervious surface that is connected via sheet flow or discrete conveyance to a storm sewer or drainage system, which is the case for each BRT station. Flow control requirements for each TDA worst case scenario are evaluated in this memorandum. Water Quality Treatment Requirements Water quality treatment is required in a TDA if the new and/or replaced impervious surface is a pollution -generating impervious surface. Pollution -generating impervious surfaces include surfaces that experience or have: vehicular use; 'industrial activities, or storage of erodible or leachable materials, wastes, or chemicals. The BRT stations' impervious surface consists of sidewalk improvements and the station platforms outside the roadway surface is not in the pollution - generating impervious surface category; therefore, water treatment is not required for any TDA. TDA Worst Case Scenario Criteria and Assumptions Due to the unique hydrologic conditions, specific criteria and assumptions presented below were made in determining the TDA boundaries for this project. Each BRT station is considered the onsite area (entire property) and TDA worst case scenario extents are defined within an *individual station area. The following is a summary of the assumptions made to determine the TDA worst case scenario extents for this project: K:\project\30900\30986M\Reports\WQ and Flow Control Memo\WQ and Flow Control Memo-012908.doc Windi Shapley, PE Page 3 Communio Transit Swift BRT Flow Contml and WlaterQualio Treatment Februag 1, 2008 • For each BRT station a quarter -mile radius circle was drawn from the center of the first catch basin that the station drains to based on existing topography. Overlapping circles show the potential to be within the same TDA. The overlap of circles shows the worst case scenario for the total of new or replaced impervious surface. • Otak ArcGIS database did not include the existing storm sewer information for the City of Lynnwood. For this area, the center of the quarter -mile radius circle was assumed to be on the road side of the station at the furthest comer of the downstream ramp. • Combined City and County storm sewer data was evaluated. County data was only used when the City data appeared to be incomplete. • Each BRT station was assumed to be a maxu'nurn of 1,040 square feet of new and/or replaced impervious area. This number was deterrnied based on preliminary station design. TDA Worst Case Scenario Results Within, the project corridor there are 15 occurrences where the quatter-mile radius circle around each station overlaps the quarter -mile circle of another station. These are no occurrences where none than two stations overlap. Therefore the worst case scenario would have 2,080 square feet (2 times 1,040 square feet) of new or replaced impervious surfaces. The quattet-mile radius circles are graphically depicted in Figures 2.0, 3.0 and 4. 0. Therefore based on the SMMWW threshold of 10,000 square feet, no flow control facilities arerequired by Ecology for any of the Community Transit Swift BRT stations. On the local jurisdiction level of Snohomish County, City of Edmonds, City of Everett, and City of Lynnwood flow control and water quality thresholds are defined on a project level. In the Snohomish County Code Chapter 30 the BRT project is classified as a redevelopment projects. If the redevelopment project creates and/or replaces 5,000 square feet or more of impervious surface then flow control and water quality treatment of stormwater runoff is required. There were no specifications on pollutant generating impervious,surface vs. non -pollutant impervious surface as it pertains to flow control and water quaht� thresholds. There were no further specifications of what constitutes the "project" as it would pertain to one or all of the BRT stations. Therefore based on the worst case scenario Snohomish County would not require flow control or water quality. In the City of Edmonds Municipal Code Chapter 18.30 the BRT project is classified as a redevelopment project. If the redevelopment project creates and/or replaces 2,000 square feet or more of impervious surface then flow control and water quality treatment of stormwater runoff is required. There were no specifications on pollutant generating impervious surface vs. non -pollutant impervious surface as it pertains to flow control and water quality thresholds. There were also no further specifications of what constitutes the "project" as it would pertain to one or all of the BRT stations. Therefore, based on the worst case scenario the City of Edmonds may requirement flow K:\project\30900\30986M\ Reports \WQ and Flow Control Memo\WQ and Flow Control Memo-012908.doc Windi Shapley, PE Page 4 Communio Transit Sndft BRT Flow Control and WaferQuali�y Treatment Februag 1, 2008 control and water quality treatment. A more details evaluation of the station des' ign and its new or replaced impervious surface and the actual project boundaries for each of the stations will be necessary. In the City of Everett Municipal Code Chapter 14.28 the BRT project is classified as a redevelopment project. If the redevelopment project creates 5,000 square feet or more of impervious surface then flow control and water quality treatment of stormwater runoff is required. There were no specifications on pollutant generating impervious surface vs. non -pollutant impervious surface as it pertains to flow control and water quality thresholds. There were also no further specifications of what constitutes the "project" as it would pertain to one or all of the BRT stations. Therefore based on the worst case scenario the City of Everett may require flow control and water quality treatment. A more details evaluation of the station design and its new or replaced impervious surface and the actual project boundaries for each of the stations will be necessary. In the City of Lynnwood Municipal Code Chapter 13.40 does not provide specific impervious area thresholds that would trigger flow control or water quality on a project level. In Section 13-40.070 the drainage and retention/detention system requirements are described. The requirements state that there shall be no *increase in the 1 0-year design storm peak discharge from the project. This implies flow control is requited for all projects that change the existing hydrology by increasing the impervious surface area of the site. The City has adopted the water quality standards of the State of Washington (Chapter 173-201 WAC) which does not provide impervious area square footage as a trigger for water quality treatment. It is more dependent on the type of discharge (non -point or point) and the characteristics of the receiving water body. Therefore for the station located in Lynnwood a more detailed evaluation of the station design will be required. Conclusion Otak evaluated and analyzed the flow control and water quality requirements of the SMWV,/W. In accordance with SMMWW, no flow control or water quality treatment requirement thresholds are exceeded with any of the BRT stations within the project corridor. The four' jurisdictions within the pro) ect corridor may have flow control and/or water quality requirement thresholds that are more restrictive than those in the SMMWW depending on how the BRT project limits are defined. If the all of the stations are considered within the project limits then flow control and water quality thresholds will be exceeded for all four Juri sdictions, but if the project level was defined by as an intersection then thresholds would only be exceeded in the Cities of Edmonds and Lynnwood. During the miter -local process for this project, Otak recommend that discussions take place regarding the four jurisdictions. Otak recommends that SMMWW be adopted as the regulatory stotmwater requirement for the CTS BRT project because the stormwater requirements of Ecology K:\project\30900\30986M\Reports\WQ and Flow Control Memo\WQ and Flow Control Memo-012908.doc Windi Shapley, PE Page 5 Communi�y Tranjit Snift BRT Flow Contml and Wlater-Qualio Treatment Februag 1, 2008 are applicable to A jurisdictions state wide and each Jurisdiction must demonstrate that their regulations conform to Ecology's standards. Y--\project\30900\30986M\Reports\WQ and Flow Control Memo\WQ and Flow Control Memo-012908.doc M5- Ma Me ,,nitS-li CD BRT Deployment Route 0 Terminal Stations 0 Station Site Selected for Construction Lynnwood Swift Stakeholder Cities N .r.r I I L.A.; Incorporated Cities _ -A- October 2007 0 0.25 0.5 0.75 1 Mile3 Data Sources: Community Transit (2007) No guarantee of any sort implied, Including accuracy. completwess, or fitness for use 2-16't'h-T ttb e t 0 IS'. U�--FT7T-71 Jr 38th e 2 JS WO I�c T— r ITZ C5— r 99 L: ns, I enter 4-- d I r sw§ 2-35th-PPSW7 01 Aurora 'Wila-, e, Ta S e ir',.� 7 �H L", -1 I (),C E 1) Af 10 City of Edmonds PRE -APPLICATION COMMENTS BUILDING DIVISION DATE March 20, 2008 STAFF: Ann Bullis, Assistant Building Official RE: Project: BRT Swift Community Transit Stations Locations: 238" & Highway 99, 216'h and Highway 99 A preliminary review was done with the pre -application materials provided and we have the following comments. 1) Codes in effect at the time of this meeting: a) 2006 International Building Code (including Accessibility) with State Amendments b) 2006 International Fire Code with State Amendments c) Edmonds Community Development Code 2) Basic Design Loads specific to Edmonds a) Snow load 25 psf — nonreducible b) Seismic design category D c) Wind speed 85 mph, 3 sec gust d) Wind exposure B (Highway 99) 3) List all deferred submittals on the cover sheet of the plans (i.e., sign, State Electrical, etc.). 4) The station must be accessible per IBC Chapter 11 and ANSI Al 17.1-2003, provide details showing compliance. 5) Provide structural plans and calculations, stamped and signed by a State licensed Professional Engineer. 6) Contact Steve Fisher, Recycling Coordinator, at 425-771-0235 regarding trash dispenser location, size and pickup requirements. FREQUENTLY OVERLOOKED ITEMS General • Incomplete submittals, insufficient number of copies, plans not separated out • General coordination of all plans not done prior to permit submittal nor throughout resubmittals (architectural, structural, landscape, civil) • Site plan, landscape plan and civil plan not to same scale • Shoring plan not submitted with initial application or submitted very late in the process; plans show shoring (rockeries/retaining walls) extending onto adjacent private property or into City ROW Fire hydrant locations not specified at pre -application meeting Structures that require a permit are shown on landscape plans not on architecturals Stairs, landings, walkways, ramps, architectural projections, etc. not shown on site plans Accessibilily • Accessible signage, location and details not provided on plans • Accessible route of travel not complete nor adequately detailed on the plans. Detail ramps, slopes, handrails, landings, width of path of travel, etc. Building Division Pre -application Conunents I 0,C E D A, 0 10 1P City of Edmonds PRE -APPLICATION COMMENTS BUILDING DIVISION DATE March 20, 2008 STAFF: Ann Bullis, Assistant Building Official ot< RE: Project: BRT Swift Community Transit Stations Locations: 23 81h & Highway 99, 216'h and Highway 99 A preliminary review was done with the pre -application materials provided and we have the following comments. 1) Codes in effect at the time of this meeting: a) 2006 International Building Code (including Accessibility) with State Amendments b) 2006 International Fire Code with State Amendments c) Edmonds Community Development Code 2) Basic Design Loads specific to Edmonds a) Snow load 25 psf — nonreducible b) Seismic design category D c) Wind speed 85 mph, 3 sec gust d) Wind exposure B (Highway 99) 3) List all deferred submittals on the cover sheet of the plans (i.e., sign, State Electrical, etc.). 4) The station must be accessible per IBC Chapter I I and ANSI A 117.1-2003, provide details showing compliance. 5) Provide structural plans and calculations, stamped and signed by a State licensed Professional Engineer. 6) Contact Steve Fisher, Recycling Coordinator, at 425-771-0235 regarding trash dispenser location, size and pickup requirements. FREQUENTLY OVERLOOKED ITEMS General • Incomplete submittals, insufficient number of copies, plans not separated out • General coordination of all plans not done prior to pennit submittal nor throughout resubmittals (architectural, structural, landscape, civil) • Site plan, landscape plan and civil plan not to same scale • Shoring plan not submitted with initial application or submitted very late in the process; plans show shoring (rockeries/retaining walls) extending onto adjacent private property or into City ROW • Fire hydrant locations not specified at pre -application meeting • Structures that require a permit are shown on landscape plans not on architecturals • Stairs, landings, walkways, ramps, architectural projections, etc. not shown on site plans Accessibili 0 Accessible signage, location and details not provided on plans Accessible route of travel not complete nor adequately detailed on the plans. Detail ramps, slopes, handrails, landings, width of path of travel, etc. Building Division Pre -application Comments I TRAFFIC CONTROL PLANS CITYOFEDMONDS SWIFTBUSRAPID TRANSITSTATIONS OWNER: COMMUNITY TRANSIT CONTRACTOR: WESTWATER CONSTRUCTION RESUB FEB - 4 2009 WILDING DEPAFtWENT CI.Ty OF EDMONDS NOTES ON TRAFFIC CONTROL PLANS ALL SIDEWALKS THAT HAVE BEEN REMOVED WILL BE RAMPED BACK UP TO MEET SIDEWALKS THAT REMAIN IN PLACE. THESE RAMPS WILL MEET ADA REQUIREMENTS FOR SIZE AND SLOPE. TRAFFIC CONTROL DEVICES AND SIGNS WILL BE SPACED AND TAPERED ACCORDING TO THE ATTATCHED MUTCED CHARTS Table 6C-1. Suggested Advance Waming Sign Spacing Urban (low speed)* 30 (100) 30 (100) 30 (100) Urban (high speed)* 100 (350) 100 (350) 100 (350) Rural 150 (500) 150 (500) 150 (500) Expressway / Freeway 300 (1,000) 450 (1,500) 800 (2,640) Road Type Distance Between Signs' A B C Speed category to be determined by highway agency ** Distances are shown in meters (feet). The column headings A, 13, and C are the dimensions shown in Figures 6H-1 through 6H-46. The A dimension is the distance from the transition or point of restriction to the first sign. The B dimension is the distance between the first and second signs. The C dimension is the distance between the second and third signs. (The third sign is the first one in a three -sign series encountered by a driver approaching a temporary traffic control zone.) Typical distances for placement of advance warning signs on expressways and freeways should be longer because drivers are conditioned to uninterrupted flow. Therefore, the advance warning sign placement should extend on these facilities as far as 800 in (0.5 mi) or more. On urban streets, the effective placement of the first warning sign in meters (feet) should range from 0.75 to 1.5 times the speed limit in km/h (4 to 8 times the speed limit in mph), with the high end of the range being used when speeds are relatively high. When a single advance warning sign is used (in cases such as low -speed residential streets), the advance warning area can be as short as 30 in (100 ft). When two or more advance warning signs are used on higher -speed streets, such as major arterials, the advance warning area should extend a greater distance (see Table 6C-1). Since rural highways are normally characterized by higher speeds, the effective placement of the first warning sign in meters (feet) should be substantially longer —from 1.5 to 2.25 times the speed limit in km/h (8 to 12 times the speed limit in mph). Since two or more advance warning signs are normally used for these conditions, the advance warning area should extend 450 in (1,500 ft) or more for open highway conditions (see Table 6C-1). Option: Advance warning may be eliminated when the activity area is sufficiently removed from the road users' Table 6C-3. Taper Length Criteria for Temporary Traffic Control Zones Type of Taper Taper Length (L)* Merging Taper at least L Shifting Taper at least 0.5L Shoulder Taper at least 0.33L One -Lane, Two -Way Traffic Taper 30 rn (100 ft) maximum Downstream Taper 30 m (100 ft) per lane * Formulas for L are as follows: For speed limits of 60 km/h (40 mph) or less: For speed limits of 70 km/h (45 mph) or greater: Where: L = taper length in meters (feet) W width of offset in meters (feet) S posted speed limit, or off-peak 85th-percentile speed prior to work starting, or the anticipated operating speed in km/h (mph) Table 6C-3. Taper Length Criteria for Temporary Traffic Control Zones Type of Taper Taper Length (L)* Merging Taper at least L Shifting Taper at least 0.5L Shoulder Taper at least 0.33L One -Lane, Two -Way Traffic Taper 30 m (100 ft) maximum Downstream Taper 30 m (100 ft) per lane Formulas for L are as follows: For speed limits of 60 km/h (40 mph) or less: L = WS2/155 (L = WS2 / 60) For speed limits of 70 km/h (45 mph) or greater: L = WS/1.6 (L = WS) Where: L = taper length in meters (feet) W width of offset in meters (feet) S posted speed limit, or off-peak 85th-percentile speed prior to work starting, or the anticipated operating speed in km/h (mph) MUTCD Guidance: The spacing of traffic cones should not exceed a distance in feet equal to 1.0 times the speed limit in mph when used for taper channelization, and a distance in feet equal to 2.0 times the speed limit in mph when used for tangent channelization. TRAFFIC CONTROL PLAN KEY TYPE 3 BARRICADE ARROW BOARD REFLECTIVE CONE POLICE OFFICER FLAGGING 0 FLAGGER LWORKER 4 ------------------------ A&L-k 1wof DIRECTION OF LANE TRAVEL TRENCH CROSSING PEDEDSTRIAN DETOUR ROUTE BY DAY EXAMPLE OF ROAD CONSTRUCTION SIGNS EXAMPLE OF REGULATORY SIGN 117 c. 1 S) 11 CITY OF EDMONDS 121 STH AVENUE NORTH - EDMONDS, WA 98020 - (425) 771-0220 - FAX (425) 771-0221 Website: wwaci.edmondsma.us DEVELOPMENT SERVICES DEPARTMENT Planning* Building- Engineering March 24, 2008 Valerie Ponce De Leon 7100 Hardeson Road Everett, WA 98203-5834 MEMO TO: Puget Sound Energy Verizon Northwest SNOCOM Police and Fire Dispatch SNOPAC Snohomish County E911 U.S. Post Office Snohomish County Assessor's Office Snohomish County Information Services Snohomish County P.U.D. Edmonds Fire Department Edmonds Police Department Edmonds Utility Billing Edmonds Public Works Edmonds Building/Street File Edmonds Address Files Edmonds Information Services Lynnwood Disposal Comcast Cable GARY HAAKENSON MAYOR This letter is to inform you that 21608, 23727 and 23832 Highway 99 have been added to the City of Edmonds address system. These are three new BRT Swift Community Transit Stations in Edmonds on Highway 99. Please see attached map book pages for locations. If you have any questions regarding this letter, please contact me at 425-771-0220 or Harrison@ci.edmonds.wa.us. Please contact me if you wish to be removed from this list. Respectfully, M,Ilil- %�Ililon Senior Permit Coordinator Edmonds Building Department W ZIUIV Z 'U 2 21034 > 2 21025 752 too > 21110 21031 2'03' 2"08 2 0 21101 7315 Ad 21104 < 21031 1 3 _" 14 11 1�08 `x 0� 1 1. J 21104 110 Kennel 2 1 10 2 r- 21107 21109 21116 7609 o IC,ty of Ed j C 21111 < Jac.kin Bo. 7207 UK: Works 700 j . 0. 7229 7217 th 4 0 L C om jex 2�1 bi Z:iw 75M 212th St Plaza DO 7416 21218 75M 21221 0 IN 212203 131 213. Allied 91 Roofing .................. .. . .. 21311 21307 213021, 7100 213TH PIL SW 21311 ell, 01�1 21316 21400 — 7304 Park & Ride B&M 21320 7200 construction ID 21405 21324 7309 Steven'! 21410 2' Manor 21400 21401 21412 2140 21405 21406 1 214 TIq ST vay Washington 21 Healthcare - McDonald's 21511 Center 2' 21420 21425 t 21 21516 21429 IL 21508 Parldng a 21520 21521 Z 2150 0) Steven S 21500 21524 court Washington 21558 Retirement 7315 21527 Home 21515 01 — AtLaS� spit Vanl-utes� ��216TH �ST ly 21601 21609 f7 $4 49 21600 21605 Kruger pt 0 Clinic .9 E21- 21 1 Steven's Health Center r2�701 7003 2 E1111, 2 64 21700 7005 #3 7512 21807 21810 751 9! 21827 Top Foods L L Vd� 21900 2 1 9TH ST. SW., 219M 211119 21920 6z 75M 22005 — 7512 22000 22009 97 2201 49 22020 —15 Lynnwood 22019 zv e, Honda 22 e7 106 2 �STIRL 2211, Fur' 3504 M. 8'2'- Ch t Lutheran 23502 23432 .3. 7727 M 23508 Church Park Edmonds 23440 rtM ts '9 E25 23513 Apartments 2 5 7:25 23514 23446 23530 P 23525 7929 ark & Ri( e 23520 23450 235117 522 23526 23456 — -TH ST�5W 7515 -Z313 g23601 23601 7918 7900 23601 N3141 � 1 7710 �ni 7604 1 23603 22 123605 123607 X 23604 236(13 23614 J1 626 23619 Safeway 23620 2 0, 236o5 23620 7924 2 26 2363�� 2382 �362 362. 236 UJI 23628 23707 23709 23710 D3 77 003 7�520� 23�17 23 19 23 11 23713 23723 23 -N4� 237 T—, oil 00, 701 23707 Z5 1 0 _(2 0 101 am t 23723 sm 23727 23723 mall 8W M 7609 23743 — LLI 8024 Bois 23M 23807 238(9 LU 23805 23803 23804 4 23830 2-5 > 7804 8100 23818 ... 23812 < 23811 23811 23811 23a e 7606 8014 23818 P a 8104 8028 ----- 820 t-. 23819 23819 7616 23825 8012 23830 2382 1 7717 7624 23821 0 le .26 4 ission Taco Tirne — — 239G4 23903 4=0_1 %239,0.r4— 8029 23900 23821 23910 7606 23916 St. Francis 81 17 231 0— Motel 23918 23917 79'5 7823 23920 77;'A 23MO 23931 ehouse 7730 r Un .1111 23926 23928 �8 23927 7629 24OTf M.: 7705 7620 24001- 24014 2 1 1 24034 F, Burlington Coat --'s Factory 40 24032 24106 24111 24109 24110 24109 24118 24118 8029 24119 24118 24117 24122 8027 8009 1 7801 �412. 24125 24130 2NDSV SW 11204 24206 24205 24a T 7920 7910 (L -- -j L 24212 24213 24-212 24211 E2- 00 24206 24207 24218 24219 24218 24219 7918 7 12 7914 Q ;24213 24329 24226 24227 24226 (0 24231 24304 24303 Campbell/Nelson VW 24228 24305 24312 24307 24319 8105 24313 24340_ 7929 7601 Jim iflem IN ift I= sib, Im'41WAIIIII Jim i-to I= 81&�Jjj "I. a 'fi"JJJ tOcIlis 411111111 Iiin im 811*'Im IIII -ift I= oil 'r, IN 0 244TH ST SW&AKE BALLINGER WAY iiialm ru ifit min a . V01 APPROVED AS NO'lLU Date: S B 32�fll ST SW AND -J I v, X, SIR 99 (STATION# 2748,1 .44 PLAN SHOWS CLOSING THE SB CURB LANE OF SR 99 AT THE INTERSECTION OF 238TH. LANE COMING INTO SITE IS A TRANSIT ONLY AND WILL BE CLOSED BEFORE -0 slig, spAc4v pi5r- THE LIGHT. THIS WILL KEEP BUSES FROM MERGING IN THE MIDDLE OF THE INTERSECTION PEDESTRIANS WILL BE LED THROUGH THE WORK ZONE BYA FLAGGER IN THE CLOSED LANE ON SR 99. THE SIDEWALK WILL BE RE -OPENED AT NIGHT WITH THF= I I.ql= OP PAKAP.q -Z IV cr c - rx goo 12ORD *V= \ ji 11'4p!Al P STREET FILE 23832 HWY 99, E BUILDING DEPARTMENT C17Y OF EDMONDS DIVIONDS 98026 mrooro ru" CONSTRUCTION NOTES 5,10+52.4. 30.0'9 4 TOP or SICCw CONSTRUCTION GRID LINE (FACE OF CURB). SEE + 0 R-Wed N R=IING TABLE ON SHEET CO.03 FOR BEARING. TrLaLK 4 0 08. 1 'RT PIC CONSTRUCT ASPHALT PAVEMENT PER DETAIL ON S98BY200A 4 10+66-3. 30V9 CA) Q) SHEET C5.02. OD C 8 T250 4 TEMPORARY CONSTRUCTION EASEMENT CONSTRUCT CEMENT CONCRETE CURB AND C99866T 7 S98 C986SBI90 PER EASEMENT GUTTER PER DETAIL ON SHEET C5.02. 6G450 0986T CONSTRUCT CEMENT CONCRETE EXTRUDED TYPE C986TBOI i, Q) -10.42-00. 230 �A 10+60 is 71 # co 6 CURB PER WSDOT STD PLAN F i 032 \STA 10+83 0. 11.5", C98 ", RI f R= 15.5' CONSTRUCT TYPICAL BUS PLATFORM, SHEETS C 61403�3 98 ST230 5[oui 51GN I C5.01, C5.02, AND C5.03 FOR DETAILS. -------- S A 10+83.0 9 6*RT CONSTRUCT CEMENT CONCRETE SIDEWALK PER 7 VIBURNUM VIDII -30.10-00. IND71T WSDOT SID PLAN F BEGIN _J \30 ASPHALT REPAIR PER DETAIL ON SHEET C5.02. CONSTRUCT CEMENT CONCRETE STAIRS PER 13 10+83.0 1059T'-�. f DETAIL ON SHEET C5.01. A E Z� No 4�1 --- - ------ 4- R/W NOT USED. -- - - - - - - --- RELOCATE EXISTING SIGN AS SHOWN ON PLAN. INSTALL PARKING MIPING PER WSDOT SM PLAN M-17.10-01. 13 3 S 1 +7 1 CONSTRUCT CONCRETE RETAINING WALL. SEE PCC WALL TA13LE ON SHEET C5.01 FOR WALL TYPE i -w- 1.0 g1l Vgv _gl STA 10+78.6 AND DETAILS b� R 2 0 9'RT 71 PT CONSTRUCT INSET PLATFORM RAMP PER DETAJL END ---._-_-.--Zone. mer__Ala&_ ON SHEET C5.02. 13 2 3 STA 10.698 0 O*RT L Setbacks Required Actual PC , TFORM EL 44604 7' 1 7P) 2" CRUSHED SURFACING TOP COURSE. 71 P a. 445 98 TC EXISTING Front _1�1 1 9 .0 STA CONSTRUCT CEMENT CONCRETE DRIVEWAY WROVED BY PLANNING 1.3 10.60.0. 7.4'RT GIN ENTRANCE TYPE 1 PER WSDOT SID PLAN Sides F-80.10-00. (A Olq - lk& 0 8 STA 10+55.0. 0 O'RT GIN NJ CONSTRUCT CEMENT CONCRETE DRIVEWAY END GIN 7.4' WIDE Rear z ENTRANCE TYPE 2 PER WSDOT SID PLAN BEGIN. 6' WIDE SF% N 289243.35 D,O* . Other F-80.10-DO. 0 CIO ml0i vu Cl WA+rw -f 5K L E 1269062.60 WHITE EDGE LINE PER WSDOT STD PLAN 5 EGIN Heic M-20AG-01. Cl0AC#_C+r_ tvlfm-f, p<w AV13.1,00,741 D ght D. 7.4' WIDE csTA-nON-#27487-SB_______, NOT USED. m Q23832_HWY99._EDMONDS_98026 CONSTRUCT SIDEWALK RAMP TYPE I PER WSDOT STO PLAN F-40.10-01. E CONSTRUCT VERTICAL CURB SEE SHEET C5.01 z FOR DETAILS. 0 PROFILED PLASTIC WIDE LANE LINE PER WSDOT STD PLAN M-20 . 20-01. Q4" WHITE DOTTED EXTENSION LINE PER WSDOT 00 t-- 1, Z' SIO PLAN M-20.10-01. F: BUS ONLY STRIPING. SEE DETAIL ON SHEET < 04 C-4 C5.03. t6 Q_ T*T� CO STRUCT SIDEWALK RAMP TYPE 4A PER 01 C: C: STA 10+9900-010'JETO RT N TO -40,16-00. t 2� 0.0 PLATFORM EL 449.83 N 28941 9_35 STA 10+55.0 10+60.0, 7.5*Kr WSDOT S PLAN F Co RAMP EL. 45000 E 1269245 72 &ND YIELD LINE SYM130L PER WSDOT SM PLAN -02. z EX 7.5' RT (Z).EGIN, 5.5' WIDE �ffo E -Q -,7 M 24.60 < �_vw) 2 EGIN. PC P EL 450.39 STA 11+01.0. 7.5' RT U)'_�-- AP CONSTRUCT PLATFORM RAMP PER DETAJL ON v) 2 13 3 FIT 9 TA 10+76.0 SHEET C5.02. I I 3 EGIN_PC SR99 S C 0) 0) EGIN. JIMA STA 11+07.0 EG PIC STA 10+05.0 (13 ND INSTALL MANUFACTURED WHEEL STOP. f-% Z 0) CY) 12- 1 . : . , �.s \, 511 END bd BEGIN 8' z N, INSTALL RAISED PAVEMENT MARKER LANE LINE 4-J Cr- 0!: END, MATCH EXISTING ------ ND. 5.5' WIDE PER WSDOT STO PLAN M-SO.50-01. V) U) P EL* 45 /��T�F 1 4. �7 END, 7.5-RT CONSTRUCT SIDEWALK RAMP TYPE 2 PER 4.0 a: :t, tp 2 (5 0- o'd -'d _QvEGIN R= R=20' -00 PLAN F-4D.12 ERb--- WSDOT STID CO -4 -W, RESTORE DISTURBED AREA WITH TOPSOIL AND 4- WK MULCH 'A .1 im mu) .7 ------ - - ev" 1 6/ RESTORE DISTURBED AREA TOPSOI -9 L AND SEED. E 45004 z 00 E so 4" WHITE PLASTIC LINE E .0 RFW OV 0 CONSTRUCT ASPHALT RAMP TO TRANSITION FROM Wd000 7 IDEWALK GRADE TO EXISTING PAVEMENT GRADE. R= 04 04 Lu 110+ GENERAL NOTES STN%10+76.0 4 00:27 z 1. ALL SPOT ELEVATIONS ARE TO FINISHED -1 4 5' , I I , GRADE UNLESS NOTED OTHERWISE. fk 2. FOR COLUMN AND ICONIC MARKER v 1+01.3. IB.8' FOOTING ELEVATIONS, AND FOOTING DETAILS SEE S SERIES SHEETS. 4 PERMANENT MATCH EXISTING alJN EASEMENT K, LEGEND STA 10+6610, im 20.4'RT A 4 RECEIVED RIGHT OF WAY CENTERLINE Incorporated BEGIN 30 ROAD CENTERLINE MATCH EXISTING RIGHT OF WAY 10230 NE Points Dr J400 V PROPERTY LINE Tarklend, Washington 9M Phone: (425) 822-4446 AUG 8 2000 827-9577 TOC- 451.15 FAY (a) HYDRANGEA MACA;H!& 'NIKKO BLUE' W79T W 7PF VINCA MINOR19 D U DER VEB: AK.COM '24 B&B v, OVERHEAD CANOPY 5 LAVENDULA ANGUSTIFOLIA 30986X 'MUNSTEAD' BUILDING DEPT. Project No. V :0 �17) LAVENDU L M�NSTEAD' TEMPORARY CONSTRUCTION 10' 0' 20' 2-18' 3 G % EASEMENT STATION #2747-NB C3.01 23727 HWY99, EDMONDS 98026 D-mg No. .-A SCALE IN FEET x bIKEET FILE RECOVED 2000 BUILDING DEPT. 0 Intersection Transit Route � County Boundary City Limits UnincorDorated Snohomish Coun WH IDBEY . 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