Proposal - Hamers - 1998-12-23 ROBIN B HAMERS 234 E 17TH ST sun-E 205
KEW
ASSOCI
ENGIINEERS • PLANNERS • SURVEYORS P 17147 s 49-1192 MESA, A 92627
CIVIL FAX [714754B-6516
December 23 1998
Board of Directors
Costa Mesa Sanitary District
P O Box 1200
Costa Mesa, CA 92628
RE. Project#151 Reconstructing Various Sewer Lines
Proposal to Begin Design Phase
Dear Board of Directors:
With the upcoming construction of the Fairview Relief Sewer by Orange County Sanitation
District (OCSD), the Costa Mesa Sanitary District has the opportunity to reconstruct two sewer
lines in Fairview Road and abandon two existing sewer siphons. The siphons are a maintenance
headache and have to be cleaned every Friday
The two sewer lines in question serve Orange Coast College property on the west side of Fairview
Road. The original sewer services to the site were reconstructed in 1972 when the County of
Orange installed a storm drain system in Fairview Road. The depth of the storm drain conflicted
with the sewer service so the sewer was reconstructed using two siphons to cross the storm dram.
The new OCSD Fairview Relief Sewer will be deeper in the street thereby allowing the CMSD
sewers to be reconstructed to flow by gravity under the County storm drain and still tie into the
new OCSD line. OCSD is providing sewer stubs specifically for this purpose as part of their
project.
Upon completion of the sewer work by OCSD the City of Costa Mesa will be repaving Fairview
Road. Upon completion of the repaving, a five year street cut moratorium will become effective.
The repaving project will begin in November 1999 at which time the CMSD construction must be
complete. A preliminary engineer s estimate of the sewer work is $130,000
® Printed m Re cled Pape
Attached for review are copies of the approved 1996-97 Capital Improvement Program (CIP)
report along with the Boyle Engineering independent review of the project. As shown in the 1996-
97 CIP it is proposed to complete the design phase of the project including preparing plans,
specifications, and estimates, and advertising for bids at the following hourly rates not to exceed
$9,600
Engineer $ 63 00/hr
Survey Crew(2 men) 155 00/hr
Survey Crew(3 men) 185 00/hr
Sin erely
Robin B. Flamers
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COSTA MESA y4 '-\°-.P DISTRICT
u Aw y DIRECTORS
\J_! 9p James Ferryman
Costa Mesa Recycles /w Nate Reade
I< Arth Perry
Arlene Schafer
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Dan Worthington
REVIEW OF PROPOSED CAPITAL IMPROVEMENT PROJECTS
FISCAL YEAR 1996-97
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Prepared by
Robin B flamers
Manager/District Engineer
FAX(714)432 1436
P.O. BOX 1200, COSTA MESA, CALIFORNIA 92628-1200 77 FAIR DRIVE (714) 754-5043
PROJECT 1112100-151
RECONSTRUCTING VARIOUS SEWER LINES
The project is similar to past projects #122 , 126, 132 , 140 and
145 which includes rehabilitation and maintenance of the
existing gravity sewer line system on an as-needed basis The
results of the original four large televising projects plus the
small yearly projects have disclosed existing problems in the
main lines such as sags, cracked pipe collapsed pipe, offset
joints, and root intrusion
The project sets up a priority list of the problem areas and
repairs the lines on this basis The project is a yearly project
and part of an ongoing maintenance program The only problem
type mentioned above which is not repaired by this project is
root intrusion which is handled through root cutting by the
District
Throughout the past projects of this type the District has
repaired the problem areas using two different methods Two of
the projects were designed using standard remove and replace
construction where the contractor excavates down to the line
makes the repair, and then backfills and repaves One of the
projects was completed using Link-Pipe, where stainless steel
sleeves were inserted into the line, adjusted to the right
location using a camera, and then expanded to permanently seal
itself Link-Pipe is generally an easier and more economical
repair method however it has some limitations in its
application The decision to use Link-Pipe or remove and replace
construction will be made during the design phase when the scope
of each repair is more fully investigated
Previous costs for excavation and reconstruction have been
approximately $650/foot since the footage is only between two and
six feet This would allow approximately 35 locations to be
included in the project Link-Pipe costs have averaged $3 500
per location or approximately $700 per foot
- 7 -
An estimate of the project costs is as follows
Design $ 9, 600
Construction 115, 000
Inspection 10,400
Reserve or Contingency 15, 000
TOTAL $ 150 000
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TRRrISPORTRTIOrl SERVICES
Mr Robin B Hamers. PE, Manager/District Engineer August 12. 1996
COSTA MESA SANITARI' DISTRICT
Post Office Box 1200
Costa Mesa, California 92628-1200
Capital Improvement Program Review
I have completed my review, of the District s 1996-97 Capital Improvement Program (CIP) that
you sent me on June 10, 1996. I have enclosed m\ independent review report as you requested.
As usual. I found the CIP report to be very complete. containing adequate information for me to
make m} review The use of vicinity maps. lists and recap sheets was beneficial, it made m`
review easier
Overall I found the CIP report to be were concise. well defined, and complete. I applaud you. the
District and the cit\ for undue-taking the Sewer Lat:.tai Stud' The end results should be well
received by the end users, the residents and businesses of Costa \'Icsa.
I appreciate the opportunit\ to continue to `vark with you and ser c the District. Best wishes to
you. the Directors. and the District staff
Boyle Engineering Corporation
Bruce D Mattern. PE
Assistant Managing Engineer
Enclosure
CIP Review Report
OC-C 1 100-0>/crosdlet nc2"6DNI/tt
Independent Review
Costa Mesa Sanitary District
Capital Improvement Program
Fiscal Year 1996-97
e Project 1112100-149/SINKING FUND
This is the second year that funds have been set aside for future replacement or reconstruction of sewer
lines as they reach life expectancy Setting aside funds for future use now will benefit from
compounding over time.
o Project 1112100-150/PUMP STATION ALARM SYSTEM UPDATE
The Districts existing radio-alarm system is reaching its life expectancy Parts may be obtainable for the
radios but the alarm reporting system appears to be unsalvageable. The District Engineer has
recommended that bids include replacing the radios as an alternative, which I support. The use of a
radio-alarm system has great value and benefit. The main saving has been in reduced response time.
auto shut down of pumps when a problem has occurred. and a reduction in overflows when there has
been a failure. The construction cost appears reasonable as does the design and inspection fees.
s Project 1112100-151/SEWER LINE RECONSTRUCTION Various Locations
This is the sixth .Ilocation in a continuing program to provide funding for maintenance of sewer lines at
arious locations. This is a maintenance program and priorities are established from the data and
analysis received from previous televising of the Districts sewer lines. Since repairs are small in length
the average cost per toot will be higher when compared to major replacement projects. The engineers
estimate appears reasonable. The design and inspection fees of 8 1'°.%0 and 9% respect\eh appea, to be
within acceptable standards. The 13% contingencti estimate is reasonable.
+ Project 1112100-152/TELEVISING SEWER LINES
This is part of an ongoing program to insure that the Districts facilities are functioning propel-1\ The
District Engineer proposes to check lines that were televised approximately eight years ago this will
provide significant information in which to draw assumptions regarding other portions of the Districts
facilities. The engineering fees are higher than normal projects but since this requires proper selection of
locations to be televised coupled with reviewing the tapes and report preparation. the seem acceptable.
The inclusion of the vicinity map was beneficial and appreciated.
+ Project 11121100-153/ROOT INTRUSION STUDY Sewer Laterals
This is the first year for this program. It appears to be a joint effort between the District and the Cit\ to
provide a public service as yell as helping to identif\ potential problems/conflicts. The District and the
City should be complimented for undertaking this project. especiall} the District for funding this first
phase. Hopefull- the public will view this as a positive step and that the information can be used for
preventati\e maintenance rather than finger pointing. I whole heartily support this program. Again. the
use of the vicinity map was beneficial.
• Project 1112100-154/SEWER WORK BY OTHERS-Reimbursement
This provides the funding for a continuing program to reimburse others for work that they either do or
have done on District facilities. Other agencies perform construction activities which affect District
facilities, i.e. raise or lower manhole to grade. Since it is the responsibility of the District for its own
facilities, providing funds to reimburse other agencies is appropriate. Based on the data contained in the
engineers report, the funding amount appears reasonable.
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