HomeMy WebLinkAbout03-20-2012 c4 storm drain repairs phase 1counci lj acenda aEpou t
C I T Y O F S A N L U I S O B I S P O
FROM :
Jay D . Walter, Director of Public Work s
Prepared By :Prepared By : Manny Guzman, Engineer II I
SUBJECT : STORM DRAIN REPAIRS AT VARIOUS LOCATIONS - PHASE 1 ,
SPECIFICATION NO . 91037 A MEASURE Y PROJEC T
RECOMMENDATION S
1.Approve plans and specifications for the Phase 1 Storm Drain Repairs at Various Locations
Project, a Measure Y –'/2 cent sales tax funded project, Specification No . 91037 .
2.Authorize staff to advertise for bids and authorize the City Manager to award the contract if th e
lowest responsible bid for the Phase 1 Storm Drain Repairs at Various Locations Project i s
within the Engineer's Estimate of $269,000 .
3.Authorize an advance of the 2012-13 Storm Drain Replacement funding of $350,000 to th e
project account to allow for award of the contract .
DISCUSSIO N
A large portion of the City's storm sewer pipeline infrastructure is comprised of corrugated metal pip e
(CMP). In the 1960s and 1970s, CMP was the industry standard due to its inexpensive material cost ,
ease of installation and projected 50-year design life . In the City's experience, CMP has proven to hav e
a design life of 20 to 30 years . CMP typically fails by friction from the action of flowing water wit h
rocks and sediment, corrosion or both . Once the integrity of the pipe has been compromised, the pipe's
surrounding soil becomes susceptible to piping (soil picked up by flowing water and carried away) an d
the pipe will eventually collapse .
The proposed project will address failing CMP drain systems adjacent to the following properties ,
276 Del Mar, 290 Ramona and 572 Foothill Blvd . The proposed project will rehabilitate the existin g
storm drain systems by removing CMP and installing 310 linear feet of polyvinyl chloride (PVC )
pipe or High Density Polyethylene (HDPE) pipe liner . The existing CMP systems being replace d
have been identified by City staff as being at the end of its useful life . Also included in this projec t
is the upgrading of six catch basins to current City-standard catch basins . Existing catch basin are to p
opening structures with metal grates that tend to clog or are undersized for the current water runoff .
The new catch basins are more free-flowing and easier to negotiate for bicycles and pedestrians .
Additive Alternate s
The project includes one additive alternate, this is an option the City can accept or reject at the tim e
of contract award depending upon construction bids . The additive alternate location is near 66 7
Serrano Drive which is another location were the existing CMP drainage system has been identifie d
as being at the end of its useful life . The proposed improvements on Serrano Drive would slip line 6 0
linear feet of CMP pipe, upgrade two catch basins to current City standards and install two new head
Meeting Date
3-20-201 2
Item Number
C4
Storm Drain Repairs at Various Locations Phase 1, Spec . No . 91037 Page 2
walls . A recommendation to include or eliminate this bid alternative will be brought forward after bid s
are received at time of contract award .
CONCURRENCE S
The project is approved by the California Department of Fish and Game through its issuance of th e
2008 Streambed Alteration Agreement for routing creek maintenance . The Department has bee n
notified of the project, as required in the 2008 Agreement .
A Water Quality Certification from the California Regional Water Quality Control Board i s
currently pending .
This project is exempt from environmental review since it is a maintenance and replacement projec t
and a Notice of Exemption has been filed through the Community Development Department .
The award of a construction contract will not occur until construction permits have been received .
FISCAL IMPAC T
There is currently $626 in the Master CMP Replacement account to support this request fo r
$350,000 . Additional funding of $350,000 is identified in the approved 2011-13 Financial Plan ,
pages 3-188 to 3-191 for the 2012-13 fiscal year . Staff is recommending this funding be advance d
to allow for award of the project, and project completion prior to the next rainy season . Only a smal l
portion of the $350,000 allocation will be actually spent prior to the start of the 2012-13 fiscal year .
A budget amendment request will be processed to transfer the appropriate project funding at th e
time of contract award .
This project will be 100% funded through Measure Y, the half-cent sales tax measure approved b y
the City's residents .
STREET &FLOOD CAPITA L
Master CMP Replacement (90742)
Phase 1 Storm Drain Repairs at Variou s
Locations (91037):
BUDGE T
Construction :$269,000
Construction Contingencies :$27,000
CM Services :$50,000
Material Testing :$3,25 0
Printing :$75 0
Total Cost of Project $350,000
Current Funds in CMP Master Account:$62 6
2012-13 Financial Plan Funding :$350,00 0
Total:$350,626
Storm Drain Repairs at Various Locations Phase 1, Spec . No . 91037 Page 3
ATTACHMEN T
Vicinity Ma p
AVAILABLE FOR REVIEW IN THE COUNCIL OFFIC E
Plans and Specification s
documentl
ATTACHMENT 1
MAKLLN L
DALY
HIGHLAND DARTMO TH
WARRE N
DONNA
TOLOSA HIGHLAND
FELTO N
CRAIG CRAI G
o~F J~(ROMAULD O
t)''°1 t I l FOOTHILL
DEL NORT E
e---RAMONA )RAM S
DEL SUR J RAMONA MEINECK E
SAN JOSE OUNETA
MURRAY
PROJECT LOCATIO N
(BID ALTERNATIVE A )
PHASE 1- STORM DRAIN REPAIR S
AT VARIOUS LOCATIONS SPEC . NO . 91037
C4 -4
CERRO ROMAULDO
FOOTHIL L
SERRAN O
PROJEC T
LOCATIONS