HomeMy WebLinkAbout12/17/2002, C3 - JOHNSON AVE RAILROAD OVERCROSSING - SEISMIC RETROFIT, SPECIFICATION NO. 99232B t
council `Dec 17, 2002
acEnaa nEpoit I"N°.b. C3
CITY OF SAN LUIS OBISPO
FROM: Michael D. McCluskey, Director of Public Workszl�
Prepared By: Barbara Lynch, Principal Civil Enginee
SUBJECT: JOHNSON AVE RAILROAD OVERCROSSING—SEISMIC
RETROFIT, SPECIFICATION NO. 99232B
CAO RECOMMENDATION
1. Approve plans and specifications for " Johnson.Ave Railroad Overcrossing—Seismic Retrofit,
Specification No. 99232B."
2. Appropriate$9,000 in additional Grant Funding.
3. Authorize staff to advertise for bids.
DISCUSSION
Background
In 1957, the City constructed the Johnson Ave underpass in conjunction with the railroad. The
agreement at that time provided for the City to maintain the substructure, the supports for the
bridge, and the railroad would maintain the superstructure. Since that time, the State has
completed various inspections for the structure as they do on most of our bridges.
In 1997, the City received a letter from the State Department of Transportation, Caltrans, that
they were in the process of completing plans for a seismic retrofit of the bridge under the
provisions of Senate Bill 36X. The letter indicated the City's role would be completion of the
environmental documents and management and inspection of the construction phase.
Caltrans hired the company of Buckland & Taylor to do the design for the retrofit of the Johnson
Bridge. A set of plans was sent to the City to process. The City sent those plans to the railroad
for approval. The railroad did not approve the plans and the project was sent back to Caltrans for
redesign. The program funding for Caltrans ran out at the end of February 2001 without final
design approval by the railroad. However, the program did allow the City to obtain funding and
continue to pursue a new design acceptable to the railroad company.
The City obtained the design funding for the project and hired the firm of Buckland & Taylor to
complete the design work. That design work was completed and the project reviewed and
approved by the railroad.
The construction will consist of building four steel "blocks" which will mount to the bridge
support walls just below the bridge deck. Essentially, the blocks are there to catch the railroad
bridge deck should it come off the bridge walls in an earthquake.
CONCURRENCES
The project was reviewed by the Cultural Heritage Committee and determined to be consistent
with the City's Historic Preservation Guidelines with direction to Community Development to
approve the project as proposed. Community Development Department has given this project a
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Council Agenda Deport—Johnson Ave Railroad Overcrossing—Seismic Retrofit
Page 2
categorical exemption. The Federal Environmental document has been completed as a
Categorical Exemption.
FISCAL IMPACT
The 1997-99 Financial Plan, Appendix B, page 70, identifies $ 37,000 to support this project.
The project design and construction are funded one hundred percent through a combination of
Federal and State fiinds.
Engineer's Estimate: Budget:
Environmental, Design &Railroad Plan $12,000 $4,000
Check Costs to date:
Construction: $30,000
Construction Contingencies: $3,000
Total for Construction: $33,000 $33,000
Miscellaneous: (printing): $1,000
Total Cost: $46,000* $37,000*
*100%Grant Funded
Design was not originally budgeted for as it was to be handled by Caltrans. When the City took
on the project, design was funded through the overall project account as there were adequate
funds to cover it. The project now needs an additional appropriation of grant funds to complete
the project funding.
Staff submitted the request for construction funding to the State. The funding was approved
November 27`i'.
ATTACHMENTS
Plans and Specifications are available in the Council office for review.
g:1 current projects\bridges\99232 Johnson rr underpass\documents\1-staff reports\99232b edv.doc
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