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Home My WebLink AboutBT105-CRE-00046 RFI 00003 SS Grady Sewer Alignment Reroute to MH2252        To: Attn: BT120-USP104 YES TBD Request for Information RFI Name: BT105-CRE-00046 RFI 00003 SS Grady Sewer Alignment Reroute to MH2252Shimmick Construction Company, Inc. Seattle, WA 98104 Irvine, CA 92618 BT105 RENTON TRANSIT CENTER DATE:2/11/2026 CENTRAL PUGET SOUND REGIONAL TRANSIT AUTHORITY - SOUND TRANSIT CONTRACT #:CN0205-24 SOUND TRANSIT From:SHIMMICK CONSTRUCTION COMPANY, INC. 401 S Jackson St 530 Technology Drive, Suite 300 Greg Frost, Resident Engineer Sent by: Jaylen Hong 909-256-9478 415-728-8786 c-greg.frost@soundtransit.org jaylen.hong@shimmick.com Contract RFI #Correspondence #Spec Section RFI Description SS Grady Sewer Alignment Reroute to MH2252 REFERENCE DOCUMENTS 33 39 13 Specification Paragraph:3.01 Specification Section: CN0205-24 00003 BT105-CRE-00046 33 39 13 Drawing No. Reference: Schedule Impact: Third Party RFI No.: 000Company: Shimmick THIRD PARTY IMPACTS NO Cost Impact: Differing Site Condition: RFI REQUEST Per Sound Transit’s CN 0205-24 General Conditions Article 4.12, it is encouraged to submit VECP’s in order to avail Sound Transit of potential cost, time savings, and increased safety. Accordingly, Shimmick submits the following proposal for consideration: Per CN 0205-24 Volume 2, Plan Sheet BT120-USP104, the current designed tie-in location for the 18-inch sanitary sewer along S Grady Way is located within the center of the northbound turn lane from S Grady Way to Rainier Ave S. Shimmick proposes revising the new tie-in location to connect at existing MH2252 (per City of Renton GIS) located within the adjacent sidewalk. Please see the below revised alignment for more information. Potential benefits from the proposed revision: - MH2252 is located off of S Grady Way and in the adjacent sidewalk. This will alleviate traffic impacts and reduce public safety hazards by eliminating approximately two weeks of lane closures and nighttime work. - Potential elimination of up to 2 manholes (including one saddle manhole). Additional subsurface investigation may be needed to ensure there are no potential conflicts with existing utilities. - Reduced impacts to the existing infrastructure during installation. Potential impacts arising from the proposed revision: - Due to the vicinity of MH2252 and the City of Renton “Gateway to Renton” Artwork, this proposed revision would require additional protective measures to ensure no damage occurs to the artwork pole foundations. - Existing concrete flatwork will need to be demolished and restored. - Existing decorative wall will need to be partially demolished and restored. - Condition assessment of the existing manhole will need to be conducted. Reviewed and Approved By: /s/ Jaylen Hong Submittal was reviewed for conformance to contractual requirements. Contractor's Review Stamp Per General Conditions Article 4.12D, Shimmick requests an expedited review and confirmation on if the proposed revised sewer alignment is acceptable. X X X XXXXXXXXXX X X X X X CONC ASPH ASPH ASPH ASPH ASPH ASPH VLT SS SS SS SS SS SS SS SS S S SD 1 8 " C O N C SW C O N C B E N C H C O N C B E N C H YIELD A R T W O R K ASPH C&G OE OE OE OE OE OE OE OE ASPH SW SWE E HH HH 2 HH HH 2ELEC VLT E E E E E E E E E E E E E E E EEE E EEEEE E E E E E E E E E E E FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO W W W W SD SD SD SD SD SD SD SD SD SD SD SD FO FO FO FO FO FO FO FO FO FO SD SD S D FO FO FO OEOE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE SD SD4" CONC SL FO FO FO FO FO FO FO SS SS SS SS SS SS SS SS SS SS SS C O M C A S T COMCAST CO M C A S T C E N T U R Y L I N K F O CENTURY L I N K F O 2-PSE 2-PSE PSE FO VLT3'6" DP 5'9" DP 7'2" DP 6'11" DP 7' DP 6'6" DP 4'4" DP 4'3" DP 3'7" DP 2' DP 8 ' 5 " D P 8 ' 1 1 " D P 8 ' 1 0 " D P 9 ' D P 4'DP 3'7" DP 400 W W E E E E E CCCC C&G WV WV C C EXTRUDED CURB SD SD SD SD SD SD SD SD SD SD SD SD SD SD SD SD SD SD SD SD SD 6' DP 4' DP 6'11" 8' 1 1 " ED (TYP.) 4'7 " 4'1" 4'6" 4'8"4'6" SD SD SD SD SD SD SD SD SD 2 WV HH S D S D S GRADY WAY ////////////////////// WWWWWWWWWWWWWWWWWWWWWWW W SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS 2 4GRADY 151+00 GRADY 152+00 GRADY 153+00 GRADY 154+00 GRADY 155+00 GRADY 156+00 3 3 SS GRADY 1+00 SS GRADY 2+00 SS GRADY 3+00 SS GRADY 4+00 SS GRADY 5+00 SS GRADY 6+00PI = 1 + 9 0 . 3 6 PI = 2 + 1 8 . 0 5 SS S R T C 0 + 8 0 BEGIN ALIGNMENT SS GRADY 1+00.00 N: 174835.96 E: 1298079.18 SS GRADY 2+18.05, 0.00' L SS SRTC 1+00.00, 0.00' =SS GRADY 4+63.20, 0.00' 2 2 2 BEGIN ALIGNMENT SS SRTC 0+80 N: 174916.03 E: 1298411.47 N77° 28' 12"E 602.99' N77° 27' 52"E 90.36' N09° 59' 31"E 27.69' 3 SS GRADY 1+90.36, 0.00' L 2 CONSTRUCTION NOTES: INSTALL SEWER MAIN PER CITY OF RENTON STD. PLAN 413 INSTALL SEWER MANHOLE WITH MANHOLE FRAME AND COVER PER CITY OF RENTON STD. PLAN 400.1 AND 401.1 INSTALL SADDLE MANHOLE WITH CAST-IN-PLACE BASE AND MANHOLE FRAME AND COVER PER CITY OF RENTON STD. PLAN 400.6 AND 401.1 2 3 4 1.SEE SHEET BT120-USP100 FOR GENERAL NOTES. GENERAL NOTES: N 20 40 SCALE IN FEET 01020 (1" = 20') STRIDE BUS RAPID TRANSIT SOUTH RENTON TRANSIT CENTER BT105 R. PARGAS 12/10/2024 J. ALTCHECH 12/10/2024 12/10/2024 UTILITIES SEWER PLAN GRADY STA 151+00 TO GRADY STA 156+50 BT120-USP104 BT120 229 1 M. ROUGH M. ROUGH M. STARLING M. ROUGH 0 12/10/2024 MR MS MR ISSUED FOR BID 1 06/13/2025 MR MS MR ADDENDUM#1 RTA/CN 0205-24 1"=20' N No.DATE DSN CHK APP REVISION SUBMITTED BY:DATE:REVIEWED BY:DATE:DATE: CONTRACT No.: FILENAME: SCALE:DRAWING No.: SHEET No.:REV: LI N E I S 1 " A T FU L L S C A L E DESIGNED BY: DRAWN BY: CHECKED BY: APPROVED BY: 10 / 2 7 / 2 5 | 12 : 4 7 P M | MR O U G H C: \ P W W O R K I N G \ J A C O B S _ B & I \ M A Y U M I . R O U G H @ H D R I N C . C O M \ D 0 4 3 6 1 2 0 \ S 1 - B T 1 2 0 - U S P 1 0 2 - 1 0 5 . D W G S1-BT120-USP102-105 FACILITY ID: Xrefs: xBRT-CUD05-TB22x34 xS1-BT120-VSF100 xS1-BTP120-UCN001 xS1-BT120-GZK020 xS1-BT120-USP001 xS1-BT120-CPP001 xS1-BT120-RPP001 xS1-BT120-VRX001 xS1-BT120-CAP001 xS1-BT120-CDP001 xS1-BT120-UWP001 GB-SEAL-MR46378 xS1-BT120-GZK010 xS1-BT120-CZN002 xS1-BT120-CZN003 MA T C H L I N E : G R A D Y S T A 1 5 6 + 5 0 SE E D W G B T 1 2 0 - U S P 1 0 5 MATCHLINE: SEE DWG BT120-USP205 MATCHLINE: SEE DWG BT120-USP204 MA T C H L I N E : N O T U S E D T H I S S E R I E S 103 201 202 204 205 SW 7TH ST RAI N I E R AVE S HA R D I E AV E S W SR - 1 6 7 SW GRAD Y WAY 105 101 104 102 203 106 KEY MAP 107 MH-01 MH-02 MH-03 90LF 18" PVC SEWER 149LF 8" PVC SEWER 262LF 18" PVC SEWER SEE PROFILE 'A' ON SHEET BT120-USV102 FOR SEWER MAIN PROFILE MH-11 28LF 18" PVC SEWER SEE PROFILE 'A' ON SHEET BT120-USV101 FOR SEWER MAIN PROFILE 245LF 18" PVC SEWER A A 10/24/2025 MSMR MR CoR Permit Revision - CNWD #001 UPDATES TO ROW AND SEWER SEE SHEETS BT120-RPP104 BT120-RPP201-BT120-RPP205 BT120-USP102,BT120-USP104 BT120-USP201-USP202 BT120-USP204-USP205 A A A 10/24/2025 DEVELOPMENT ENGINEERING msippo 11/25/2025 WASTEWATER UTILITY jstowell 11/25/2025 C2 4 0 0 2 1 2 3 LU A 2 4 - 0 0 0 2 3 3 PR 2 1 - 0 0 0 0 9 5 WW P - 2 7 - 4 3 3 2 S-433203 Existing MH2252 135.50 f t 13 0 . 1 3 f t 40'-0" Proposed 18" Sewer Line Proposed MH-02 Location 143'-10" Eliminate MH-01 and MH-11 X Information from City of Renton GIS Artwork protection may include pole holds. Disturbed concrete flatwork proposed to be replaced back to existing condition. Potential partial demolition and restoration of wall Proposed route to avoid PSE transmission pole foundation clearances. Limit of excavation (Exact alignment will vary depending on actual surveyed alignment) Existing MH2252