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Home My WebLink AboutAddendum No. 1 (1-15-2021)Lake Washington Loop Trail Project ADDENDUM NO. 1 TAP-HLP-STPUL 1070(008) January 14, 2021 Page 1 of 8 Addendum No. 1 Lake Washington Loop Trail Project Federal Aid Number: TAP-HLP-STPUL 1070(008) Date of Issue: January 14, 2021 Bid Due Date: February 2, 2021 (DATE CHANGED) Date of Bid Opening: February 4, 2021 (DATE CHANGED) ATTENTION: ALL BIDDERS AND PLAN HOLDERS: The Bid Documents for the above-named project are modified as described below. Bidders shall take this Addendum into consideration when preparing and submitting their bids. Bidders shall attach this addendum to their copy of the Contract Documents, and shall acknowledge receipt of this Addendum on the Proposal Signature Page. A Proposal may be considered irregular and may be rejected if the receipt of Addenda is not acknowledged. A Proposal will be considered irregular and will be rejected if the Schedule of Prices included in this Addendum is not completed and submitted with the Proposal. THE CONTRACT DOCUMENTS ARE MODIFIED AS FOLLOWS: 1. CALL FOR BIDS · REPLACE first paragraph of Call for Bids document with the following: “Sealed bids will be received until 11:00 AM, Tuesday, February 2, 2021, at the lobby of Renton City Hall, 1055 South Grady Way, Renton, WA 98057. All supplemental documents, that are allowed to be submitted after this date and time, shall be received at the lobby of Renton City Hall. Sealed bids will be opened and publicly read via Zoom video-conferencing web application at 1:00 PM, Thursday, February 4, 2021. Any bids received after the published bid submittal time cannot be considered and will not be accepted.” Lake Washington Loop Trail Project ADDENDUM NO. 1 TAP-HLP-STPUL 1070(008) January 14, 2021 Page 2 of 8 2. SPECIAL PROVISIONS The following Special Provisions sections are revised for this contract as follows: · Section 1-05.4, Conformity with and Deviation from Plans and Stakes, located on pages SP-13 and SP-14. On page SP-13 the last sentence is DELETED. Supplement this section with the following: · Section 1-05.4, Conformity with and Deviation from Plans and Stakes, located on pages SP-13 and SP-14. On page SP-14 the following APWA GSP, Option 1 is DELETED: Roadway and Utility Surveys (July 23, 2015 APWA GSP, Option 1) The Engineer shall furnish to the Contractor one time only all principal lines, grades, and measurements the Engineer deems necessary for completion of the work. These shall generally consist of one initial set of: 1. Slope stakes for establishing grading; 2. Curb grade stakes; 3. Centerline finish grade stakes for pavement sections wider than 25 feet; and 4. Offset points to establish line and grade for underground utilities such as water, sewers, and storm drains. On alley construction projects with minor grade changes, the Engineer shall provide only offset hubs on one side of the alley to establish the alignment and grade. · Section 9-29.13(6), Emergency Pre-emption, located on pages SP-157 – SP-159. On page SP-158 the following sentence is ADDED as a new paragraph after the third paragraph ending with “3. Pre-emption Indicator Lights.” “The pre-emption detectors shall be Global Traffic Technologies model Opticom 721 IR or 722 IR – as noted in signal plans.” · Section 9-29.24, Service Cabinets, located on pages SP-186 – SP-187. On page SP-186 the last paragraph is DELETED. On page SP-187 the first two paragraphs are DELETED: The electrical service cabinet shall be per the City Standard Plans 122.1 and 122.2. The breaker configuration shall be per the panel schedule as shown on the Plans. All electrical conductors, buss bars and conductor terminals shall be copper or brass. The cabinet shall be fabricated from galvanized cold rolled sheet steel, with 12 gauge used for exterior surfaces and 14 gauge for interior panels. Door hinges shall be the continuous concealed piano type and no screws, rivets or bolts shall be visible outside the enclosure. The cabinet door shall be fitted for a Best internal type lock. The cabinet shall have ventilation louvers on the lower and upper sides complete with screens, filters Lake Washington Loop Trail Project ADDENDUM NO. 1 TAP-HLP-STPUL 1070(008) January 14, 2021 Page 3 of 8 and have rain tight gaskets. The cabinet door shall have a one piece weather proof neoprene gasket. The finish coat shall be a factory baked on enamel light grey in color. The galvanized surface shall be etched before the baked on enamel is applied. The interior shall be given a finish coat of exterior grade of white metal enamel. Painting shall be done in conformance with these Special Provisions of Section 6-07. These DELETED paragraphs in Section 9-29.24, Service Cabinets, located on pages SP-186 – SP-187 are REPLACED with the following paragraph: “The electrical service cabinet shall be per the City Standard Plans 122.1 and 122.2. The breaker configuration shall be per the panel schedule as shown on the Plans. All electrical conductors, buss bars and conductor terminals shall be copper or brass. The cabinet shall be fabricated from aluminum with a mill finish, with 12 gauge used for exterior surfaces and 14 gauge for interior panels. Door hinges shall be the continuous concealed piano type and no screws, rivets or bolts shall be visible outside the enclosure. The cabinet door shall be fitted for a Best internal type lock. The cabinet shall have ventilation louvers on the lower and upper sides complete with screens, filters and have rain tight gaskets. The cabinet door shall have a one piece weather proof neoprene gasket.” 3. PLANS (VOLUME 2 OF 2) The following Plan sheets are revised as follows: · 10/C2.05 DELETE portion of sidewalk removal hatch in the traffic island and section of sidewalk removal on northeast side of the intersection of Airport Way & Logan Avenue N in Plan view on sheet C2.05. ADD section of sidewalk removal on southeast side of the intersection of Airport Way and Logan Avenue N in Plan view on sheet C2.05. · 19/C3.07 DELETE installation of Cement Conc. Sidewalk & Precast Sloped Mountable Curb in the traffic island at the intersection of Airport Way & Logan Avenue N in Plan view on sheet C3.07. Lake Washington Loop Trail Project ADDENDUM NO. 1 TAP-HLP-STPUL 1070(008) January 14, 2021 Page 4 of 8 DELETE installation of Cement Conc. Sidewalk & Cement Conc. Traffic Curb on northeast side of the intersection of Airport Way & Logan Avenue N in Plan view on sheet C3.07. ADD installation of Cement Conc. Sidewalk & Cement Conc. Traffic Curb and Gutter on southeast side of the intersection of Airport Way & Logan Ave N in Plan view on sheet C3.07. · 59/IL8.04 REPLACE callouts for existing illumination pole in the bottom Plan view on sheet 59/IL8.04 with the following: “CONSTRUCTION NOTE #1 & ILLUMINATION POLE #14.” · 63/TS9.01 ADD the following pre-empt detector model to Pole Construction Notes #3, #4, and #5 on sheet 63/TS9.01: “…OPTICOM 721 IR.” · 66/TS9.04 REPLACE Wire Note #1 in the Wiring Schedule on sheet 66/TS9.04 with the following: “ONE NEW VIDEO (1), ONE NEW 3C(SH) (1), ONE NEW 10C (1), TWO EXISTING #8 (2), AND ONE NEW GROUND (1) CONDUCTORS.” REPLACE Wire Note #3 in the Wiring Schedule on sheet 66/TS9.04 with the following: “ONE EXISTING 5C (1), ONE EXISTING 2C(SH) (1), AND ONE EXISTING GROUND (1) CONDUCTORS.” REPLACE Wire Note #4 in the Wiring Schedule on sheet 66/TS9.04 with the following: o “2″ EXISTING CONDUIT – ONE EXISTING 5C (1), ONE EXISTING 2C(SH) (1), AND ONE EXISTING GROUND (1) CONDUCTORS.” o “1.5″ EXISTING CONDUIT – TWO EXISTING #8 (2) AND ONE EXISTING GROUND (1) CONDUCTORS.” REPLACE Wire Note #6 in the Wiring Schedule on sheet 66/TS9.04 with the following: o “2″ EXISTING CONDUIT – TWO EXISTING 5C (2), TWO EXISTING 2C(SH) (2), AND ONE EXISTING GROUND (1) CONDUCTORS.” o “1.5″ EXISTING CONDUIT – TWO EXISTING #8 (2) AND ONE EXISTING GROUND (1) CONDUCTORS.” Lake Washington Loop Trail Project ADDENDUM NO. 1 TAP-HLP-STPUL 1070(008) January 14, 2021 Page 5 of 8 REPLACE Wire Note #8 conduit in the Wiring Schedule on sheet 66/TS9.04 with the following: “ONE NEW VIDEO (1), ONE NEW 3C(SH) (1), ONE NEW CAT5E ETHERNET (1), ONE EXISTING CAT5E ETHERNET (1), ONE NEW 10C (1), TWO EXISTING #8 (2), AND ONE NEW GROUND (1) CONDUCTORS.” REPLACE Wire Note #9 in the Wiring Schedule on sheet 66/TS9.04 with the following: o “2″ EXISTING CONDUIT – ONE EXISTING CAT5E ETHERNET (1), TWO EXISTING 5C (2), TWO EXISTING 2C(SH) (2), AND ONE EXISTING GROUND (1) CONDUCTORS.” o “1.5″ EXISTING CONDUIT – TWO EXISTING (2) #8 AND ONE EXISTING GROUND (1) CONDUCTORS.” REPLACE Wire Note #10 conduit in the Wiring Schedule on sheet 66/TS9.04 with the following: “THREE NEW VIDEO (3), TWO NEW 3C(SH) (2), ONE NEW CAT5E ETHERNET (1), ONE EXISTING CAT5E ETHERNET (1), TWO NEW 10C (2), TWO EXISTING 5C (2), TWO EXISTING 2C(SH) (2), TWO EXISTING #8 (2), AND ONE EXISTING GROUND (1) CONDUCTORS.” REPLACE Wire Note #12 conduit in the Wiring Schedule on sheet 66/TS9.04 with the following: “THREE NEW VIDEO (3), TWO NEW 3C(SH) (2), ONE NEW CAT5E ETHERNET (1), TWO NEW 10C (2), AND ONE EXISTING GROUND (1) CONDUCTORS.” REPLACE Wire Note #13 conduit in the Wiring Schedule on sheet 66/TS9.04 with the following: “TWO NEW VIDEO (2), ONE NEW 3C(SH) (1), ONE NEW CAT5E ETHERNET (1), ONE NEW 10C (1), AND ONE EXISTING GROUND (1) CONDUCTORS.” REPLACE Wire Note #14 conduit in the Wiring Schedule on sheet 66/TS9.04 with the following: “ONE NEW VIDEO (1), ONE NEW 3C(SH) (1), ONE NEW 10C (1), AND ONE EXISTING GROUND (1) CONDUCTORS.” REPLACE Wire Note #15 in the Wiring Schedule on sheet 66/TS9.04 with the following: “ONE NEW VIDEO (1), ONE NEW 3C(SH) (1), ONE NEW 10C (1), AND ONE NEW GROUND (1) CONDUCTORS.” Lake Washington Loop Trail Project ADDENDUM NO. 1 TAP-HLP-STPUL 1070(008) January 14, 2021 Page 6 of 8 REPLACE Wire Note #16 in the Wiring Schedule on sheet 66/TS9.04 with the following: “3″ SCH 40 PVC SPARE – ONE NEW PULL WIRE (1) CONDUCTOR.” REPLACE Construction Note 2 on sheet 66/TS9.04 with the following: “EXISTING MAST ARM POLE AND ASSOCIATED EQUIPMENT TO REMAIN. PROTECT DURING CONSTRUCTION. INSTALL ONE PTZ CAMERA, TWO VIDEO DETECTION CAMERAS, AND ONE PRE-EMPT DETECTOR ON MAST ARM PER POLE SCHEDULE, SHEET TS9.06. INSTALL ONE NEW TERMINAL CABINET ON SIGNAL POLE. REMOVE EXISTING VEHICLE SIGNAL HEAD 25. SALVAGE AND RETURN EQUIPMENT TO THE CITY SIGNAL MAINTENANCE SHOP.” REPLACE General Note #14 on sheet 66/TS9.04 with the following: “CONTRACTOR SHALL USE TRENCHING METHOD PER UTILITY TRENCH DETAIL ON SHEET C3.10.” REPLACE Pole Construction Note #2 on sheet 66/TS9.04 with the following: “EXISTING MAST ARM POLE AND ASSOCIATED EQUIPMENT TO REMAIN. PROTECT DURING CONSTRUCTION. INSTALL ONE VIDEO DETECTION CAMERA AND ONE OPTICOM 722 IR PRE-EMPT DETECTOR PER POLE SCHEDULE, SHEET TS9.06. REMOVE EXISTING SIGNAL CABLES AND REPLACE WITH ONE NEW 14-10C STRANDED IMSA TRAFFIC SIGNAL CABLE PER WIRING SCHEDULE, THIS SHEET.” REPLACE Pole Construction Note #3 on sheet 66/TS9.04 with the following: “EXISTING MAST ARM POLE AND ASSOCIATED EQUIPMENT TO REMAIN. PROTECT DURING CONSTRUCTION. INSTALL ONE PTZ CAMERA, TWO VIDEO DETECTION CAMERAS, AND ONE OPTICOM 721 IR PRE-EMPT DETECTOR ON MAST ARM PER POLE SCHEDULE, SHEET TS9.06. INSTALL ONE NEW TERMINAL CABINET ON SIGNAL POLE. REMOVE EXISTING VEHICLE SIGNAL HEAD 25. SALVAGE AND RETURN EQUIPMENT TO THE CITY SIGNAL MAINTENANCE SHOP. REMOVE EXISTING SIGNAL CABLES AND REPLACE WITH ONE NEW 14-10C STRANDED IMSA TRAFFIC SIGNAL CABLE PER WIRING SCHEDULE, THIS SHEET.” · 67/TS9.05 DELETE vehicle signal head 25 from Signal Pole #3 in Wiring Diagram on sheet 67/TS9.05. · 66 and 67/TS9.04 and TS9.05 DELETE new conduit from existing junction boxes to signal poles #2 & #3 in Plan view on sheet 66/TS9.04 and in Wiring Diagram on sheet 67/TS9.05. Lake Washington Loop Trail Project ADDENDUM NO. 1 TAP-HLP-STPUL 1070(008) January 14, 2021 Page 8 of 8 This page is intentionally left blank. NUMBERBYAPP.REVISION DESCRIPTIONCITY OF RENTONDRAWN BY:DESIGN BY:CHECK BY:PROJ MGR: CITY OF RENTONBY:DATE:APPROVED FOR CONSTRUCTIONDATEDRAWING NO.PROJECT NO.FED AID NO.DATE: SHEET NO.OF32468TAP-1070(008)LAKE WASHINGTON LOOP TRAIL12/202011241 Willows Road NE, Suite 200Redmond, WA 98052425.822.4446www.otak.comTESC AND DEMOLITION PLAN NUMBERBYAPP.REVISION DESCRIPTIONCITY OF RENTONDRAWN BY:DESIGN BY:CHECK BY:PROJ MGR: CITY OF RENTONBY:DATE:APPROVED FOR CONSTRUCTIONDATEDRAWING NO.PROJECT NO.FED AID NO.DATE: SHEET NO.OF32468TAP-1070(008)LAKE WASHINGTON LOOP TRAIL12/202011241 Willows Road NE, Suite 200Redmond, WA 98052425.822.4446www.otak.comCYCLE TRACK AND DRAINAGE PLAN AND PROFILEVERTHORZ NUMBERBYAPP.REVISION DESCRIPTIONCITY OF RENTONDRAWN BY:DESIGN BY:CHECK BY:PROJ MGR: CITY OF RENTONBY:DATE:APPROVED FOR CONSTRUCTIONDATEDRAWING NO.PROJECT NO.FED AID NO.DATE: SHEET NO.OF32468TAP-1070(008)LAKE WASHINGTON LOOP TRAIL01/2021Transportation Planning | Design | Traffic Impact & Operations11400 SE 8th Street, Suite 200, Bellevue, WA 98004 | Office (425) 889-6747Transportation Engineering NorthWestProject Contact: Elyse Stemmler, P.E.Phone: 425-250-5004TENW1BVLEMSADDENDUM 1 - CONDUIT CAPACITY01/12/21ILLUMINATION PLAN····1 ···NUMBERBYAPP.REVISION DESCRIPTIONCITY OF RENTONDRAWN BY:DESIGN BY:CHECK BY:PROJ MGR: CITY OF RENTONBY:DATE:APPROVED FOR CONSTRUCTIONDATEDRAWING NO.PROJECT NO.FED AID NO.DATE: SHEET NO.OF32468TAP-1070(008)LAKE WASHINGTON LOOP TRAIL01/2021Transportation Planning | Design | Traffic Impact & Operations11400 SE 8th Street, Suite 200, Bellevue, WA 98004 | Office (425) 889-6747Transportation Engineering NorthWestProject Contact: Elyse Stemmler, P.E.Phone: 425-250-5004TENW1BVLEMSADDENDUM 1 - CONDUIT CAPACITY01/12/21TRAFFIC SIGNAL PLANAIRPORT WAY S/SHATTUCK AVE SLEFT TURNYIELDYELLOWON FLASHINGSHATTUCKAve S111 CCNUMBERBYAPP.REVISION DESCRIPTIONCITY OF RENTONDRAWN BY:DESIGN BY:CHECK BY:PROJ MGR: CITY OF RENTONBY:DATE:APPROVED FOR CONSTRUCTIONDATEDRAWING NO.PROJECT NO.FED AID NO.DATE: SHEET NO.OF32468TAP-1070(008)LAKE WASHINGTON LOOP TRAIL01/2021Transportation Planning | Design | Traffic Impact & Operations11400 SE 8th Street, Suite 200, Bellevue, WA 98004 | Office (425) 889-6747Transportation Engineering NorthWestProject Contact: Elyse Stemmler, P.E.Phone: 425-250-5004TENW1BVLEMSADDENDUM 1 - CONDUIT CAPACITY01/12/21TRAFFIC SIGNAL PLANAIRPORT WAY S/LOGAN AVE SONLYTURNONNOREDONLY··11111 NUMBERBYAPP.REVISION DESCRIPTIONCITY OF RENTONDRAWN BY:DESIGN BY:CHECK BY:PROJ MGR: CITY OF RENTONBY:DATE:APPROVED FOR CONSTRUCTIONDATEDRAWING NO.PROJECT NO.FED AID NO.DATE: SHEET NO.OF32468TAP-1070(008)LAKE WASHINGTON LOOP TRAIL01/2021Transportation Planning | Design | Traffic Impact & Operations11400 SE 8th Street, Suite 200, Bellevue, WA 98004 | Office (425) 889-6747Transportation Engineering NorthWestProject Contact: Elyse Stemmler, P.E.Phone: 425-250-5004TENW1BVLEMSADDENDUM 1 - CONDUIT CAPACITY01/12/21TRAFFIC SIGNAL PLANAIRPORT WAY S/LOGAN AVE SCABINETPED HEADSSIGNAL HEADSSERVICE501502AC+AC-Ø2621622623626741742743744745761762763764765Ø4Ø64849696873173273373473572172272372472538392928625Ø3631632633636635213132Ø2Ø3931932935941942945951952955961962965DBACØ4Ø8Ø2Ø612312324V PWR24V RTNGROUND12312324V PWR24V RTNGROUND24V PWR24V RTNGROUND24V PWR24V RTNGROUND1234VIDEOVIDEOVIDEOVIDEOVIDEO SURGESUPPRESSOR CAMERAPHASE 8 CAMERAPHASE 6 CAMERAPHASE 4 CAMERAPHASE 2 CONTROLLERLOOP DETECTIONØ565165265365665522Ø1611612613616615112551526C16C26C36C66C56D16D26D36D66D5OLCOLDSIGNAL HEADSINT Ø666166266366666561626816826836866858182Ø86A16A26A36A66A5OLA6B16B26B36B66B5OLBOLB1111111