Chamber Way Emergency Bridge Repair Bridge 5/227 · Chamber Way Emergency Bridge Repair Bridge 5/227 ACEC/WSDOT Structures Meeting ... ACROW Span • Purchased by WSDOT • 50 ft

Chamber Way Emergency Bridge RepairBridge 5/227

ACEC/WSDOT Structures MeetingNovember 18, 2016

Existing Bridge Built in 1958 4 simple spans, P.C. prestressed concrete girders SB min. clearance posted at 14-8 (Actual about 14-11) Bridge has been hit 9 times (known hits) Span 2: CL pier to CL Pier = 51-6

Timeline Friday, July 22 - hit by unpermitted oversized truck Wednesday, July 27 AM damage span demolished Monday, August 1-2 50 ACROW span placed (approx. 51-0 end to end) Thursday, August 4 Built asphalt wedge ramps and open to traffic Mid October Sidewalk open to pedestrian traffic

Chamber Way Emergency Bridge Repair

Chamber Way Emergency Bridge Repair

Chamber Way Emergency Bridge Repair

Chamber Way Emergency Bridge Repair

ACROW Span Purchased by WSDOT 50 ft 2 lane DS 24ft - w/ 5 ft footwalk DS = Double truss Single stack End to end length is approx. 51 ft

Chamber Way Emergency Bridge Repair

Chamber Way Emergency Bridge Repair

Chamber Way Emergency Bridge Repair

Chamber Way Emergency Bridge Repair

Chamber Way Emergency Bridge Repair

Chamber Way Emergency Bridge Repair

Chamber Way Emergency Bridge Repair

Chamber Way Emergency Bridge Repair

Chamber Way Emergency Bridge Repair

Challenges: Open bridge timeline promises made to the public without checking with support teams Started construction of pedestals without signed plans

o Constructed top of pedestal parallel to top of crossbeamo Required steel shims to level bearing plateo Bearing plate holes were not fields drilled to match anchor bolt patterno Used 40 ksi steel from Home Depot

Started fabrication of steel members before field verifying bridge dimensionso Resulted in wasted material and re-fabrication of some members

Delayed response to questions presented to project office o Resulted in rushed schedule at the end of design

Designed twice with intent to speed delivery

Chamber Way Emergency Bridge Repair

Public Relations Local economic impacts by cutting off access to retail (Walmart, Home Depot) Building relations with local agencies Showing good faith efforts to restore access for small communities

Future Will be replaced with new 4-lane bridge Meet current minimum vertical clearance 16-6 Forward compatible with future corridor projects

Chamber Way Emergency Bridge Repair

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