HomeMy WebLinkAbout06-21-2016 Item 14 CMP Replacements 2015, Spec 91268Meeting Date: 6/21/2016
FROM: Daryl Grigsby, Director of Public Works
Prepared By: Jennifer Lawrence, Engineering Technician III
Violeta Esparza-Reniere, Engineer III
SUBJECT: CMP REPLACEMENTS 2015, SPECIFICATION NO. 91268
RECOMMENDATION
1.Approve plans and specifications for "CMP Replacements 2015, Specification No. 91268”; and
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 $244,100.
DISCUSSION
Background
Corrugated metal pipe (CMP) replacement is an ongoing effort to phase out failing stormdrain pipe
that no longer conforms to City standards. Corrugated metal storm drain pipe has a life span of 20 to
30 years; whereas polyvinyl chloride (PVC) plastic storm drain pipe has a life span of 50 to 100
years. At the end of the CMP useful life, the bottom and or top of the pipe rusts through. Once the
integrity of the CMP has been compromised, the pipe often collapses and the soil surrounding it is
susceptible to failure. If the soil around the pipe collapses, costly roadway and other structural
repairs are needed. Therefore, CMP replacement is an important preventative maintenance program
that reduces the City’s long-term costs and potential liability.
This project includes improvements at the following locations, which have been identified as areas
where the existing storm drain system is in need of replacement:
1.Kentucky/Bond – Remove or abandon existing storm drain facilities. Install new cross-
gutter and ADA compliant sidewalk ramp.
2.Santa Ynez/Loomis – Remove existing CMP and replace with new plastic storm drain pipe.
Remove and replace existing catch basins and junction box/manhole.
3.Foothill/Carpenter – Remove and replace existing catch basin. Remove existing CMP and
replace with new plastic storm drain pipe. Relocate affected water laterals. Rehabilitate
bottom of existing 54” CMP across Carpenter.
This project will take approximately two months to complete. The Plans and Specifications are
available for review in the Council Reading File.
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CONCURRENCES
The City Engineer has reviewed the plans and has determined that the project complies with the
City Standard Specifications and Engineering Standards.
ENVIRONMENTAL COMPLIANCE
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 $625,600 in the Corrugated Metal Pipe Replacement Master Account (90742)
to support this request of $287,062.
Corrugated metal pipe replacement is fully funded by the City’s Local Revenue Measure.
Construction (Engineer’s Estimate):$244,100
Construction Contingencies:$36,605
Potholing (design phase)$4,222
Materials Testing:$2,000
Printing & Misc.:$200
Total Estimated Project Cost:$287,127
Current CMP Master Account Balance:$625,600
Total Remaining Funding -$338,473
CMP Replacements 2015, Specification No. 91268
ALTERNATIVES
Deny authorization to advertise. The City Council may choose not to authorize project
advertisement. This is not recommended since summer is the best time to replace CMP. In
addition, school is out and neighborhood traffic volume is lower.
Attachments:
a- Council Reading File - Plans 91268 2015 CMP Project
b - Council Reading File - 91268 Special Provisions
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