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Project Details

OR 22: Salem Center Street Bridge Seismic Retrofit

Planning Phase

Region 2: Willamette Valley and Northwest Oregon (Salem, Marion)


The scope of this project is to seismically analyze the series of structures that constitute the Center Street crossing of the Willamette River and determine retrofit measures for the identified vulnerable elements based on a full (Phase 1 & Phase 2) seismic retrofit approach. The following bridges will be analyzed under this project:

Bridge No.                                    Bridge Name                                              Milepost
00123K                                  Willamette River, EB (Center St)                 25.88
22523                                    Willamette River, EB Ramp                     25.69
22519                                    Willamette River, EB Ramp N.                     25.88
00123G                                  Willamette River, Ramp to SB                26.00

The proposed project will develop a general plan and cost estimate for completion of seismic retrofit of the Center Street Bridge such that it would remain a functional crossing of the Willamette River.  At this time, there is no budget for final design level plans or construction. ​


Impacts

Schedule

Current work:

ODOT is in the process of hiring a consultant that will do a seismic retrofit study.  The study will evaluate what is needed to bring the Center Street Bridge up to current standards.  The study will likely include an analysis of workable seismic retrofit solutions, and a retrofit strategy that includes potential construction staging and costs.   ODOT hopes to have the consultant hired by early summer.

Work completed to date:

  • Agreement between ODOT, SKATS and City of Salem to partner in the funding of the project. 
  • SKATS amended their Transportation Improvement Program to add project and dedicate federal STP funding and ODOT Amended the STIP to add project scheduled to begin in 2017.
  • ODOT Bridge Section has prepared a draft Statement of Work to be incorporated into the A/E Consultant Contract to govern the work on the project
Timeline:
  • Intergovernmental Agreement Execution - June 2017
  • A/E Consultant Contract Award – Summer 2018
  • Final Bridge Type, Size and Location Package and Final Report – Spring 2019

Details

About

​​The proposed project will prepare a plan and cost estimate for completion of the seismic retrofit of the Center Street Bridge such that the bridge would “survive” a major seismic event and continue to provide a functioning crossing of the Willamette River.  The project is included in HB 2017 and will be part of the future State Transportation Improvement Program (STIP).​​​

Location

OR 22 | OR 22 Center Street bridge in Salem

Cost and Funding

​The project is currently funded at $200,000 for the delivery of a final Type, Size and Location bridge plan package and final report. The funding breakdown is as follows: SKATS (MTIP funding) - $179,460, ODOT -$15,405, and City of Salem - $5,135.  Total project costs through construction are anticipated to be near $60 million.

What Problem Will This Improve?

​​

Additional Information

  • The Marion and Center Streets bridges are the only crossings of the Willamette River in the Salem area. The Marion Street Bridge was constructed in 1953, has had only limited updates and regular maintenance, and is in poor condition. The Center Street Bridge was replaced in 1985 and is in relatively good condition. In the event of a major seismic event, it is anticipated that both bridges would be significantly damaged and unpassable. Because of its age and condition, it is believed that seismic retrofit would not be a cost effective solution for the Marion Street Bridge. Seismic retrofit would, however, be appropriate for the Center Street Bridge.
  • The project will determine the level and cost of installation of seismic retrofit measures on the Center Street bridge such that it will remain a functional crossing of the Willamette River. Installation of the retrofit measures will ensure that accessibility and connectivity across the river after a major seismic event will be maintained, although not at the current level assuming the Marion Street Bridge will not be in service. This is an important consideration given that most essential services necessary for residents of the West Salem area (including governmental and medical services) are on the east side of the river and would be inaccessible if both bridges should fail.

Contacts & Media

Project Contacts

Project Manager
Alvin Shoblom
Email
alvin.shoblom@odot.state.or.us
Phone
503-986-2874

Public Information Officer
Lou Torres
Email
louis.c.torres@odot.state.or.us
Phone
503-986-2880

Last Updated

3/29/2019 11:53 AM

Project Number

20046

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