HomeMy WebLinkAbout04-21-2015 C3 High Street Storm Drain ReplacementCity of San Luis Obispo, Council Agenda Report, Meeting Date, Item Number
FROM: Daryl Grigsby, Director of Public Works
Prepared By: Doug Nelms, Engineering Inspector
SUBJECT: HIGH STREET STORM DRAIN REPLACEMENT, SPECIFICATION NO. 91307
RECOMMENDATION
1. Approve plans and specifications for "High Street Storm Drain Replacement, Specification No.
91307."
2. Authorize staff to advertise for bids and authorize the City Manager to award the contract if the
lowest responsible bid is within the Engineer’s Estimate of $111,300.
DISCUSSION
Replacement of Corrugated Metal Pipe (CMP) in the City’s storm drain system is an ongoing effort
to phase out these sections in the system. CMP storm drain has a life span of 20 to 30 years, and
some sections of CMP storm drains have been in service for 50 years. Once the integrity of the
CMP has been compromised, the soil surrounding the pipe is susceptible to failure; leading to
roadway repairs.
The CMP storm drain on the north side of High Street between Broad and Upham has collapsed and
there is a sinkhole in the area above the collapsed pipe. The scope of this project includes replacing
two sections of the failed CMP storm drain and repairing the damaged street. It also includes
replacing two drainage inlet and outlet structures with new catch basins.
ENVIRONMENTAL REVIEW
The Community Development Department has determined that this project is categorically
exempt from CEQA pursuant to Sections 15301 (maintenance of existing facilities) and 15302
(replacement or reconstruction) of the CEQA Guidelines.
FISCAL IMPACT
There is currently $386,130 in the Corrugated Metal Pipe Replacement Master Account to
support this request of $111,300 as well as the $32,500 request for the California / Johnson
Waterline replacement also on this agenda.
CMP Replacement is fully funded by the City’s ½ cent sales tax.
April 21, 2015
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High Street Storm Drain Replacement, Specification No. 91307 Page 2
Construction (Engineer’s Estimate):$99,800
Construction Contingencies:$10,000
Materials Testing:$1,000
Printing & Misc.:$500
Total Estimated Project Cost:$111,300
Current CMP Master Account Balance:$386,130
High Street Storm Drain Replacement (91307)
ATTACHMENT
Vicinity Map
AVAILABLE FOR REVIEW IN THE COUNCIL OFFICE
Plans and Specifications
\\chstore7\Team\Council Agenda Reports\2015\2015-04-21 (Budget Major City Goals)\High Street Storm Drain Replacement\91307 CAR
Advertise.docx
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HIGH STREET STORMDRAIN REPLACEMENT
VICINITY MAP
ATTACHMENT 1
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