Project 183-2 -Proposal - Robin Hamers - 2008-12-01 BN ROBIN B. HAMERS & ASSOC., INC. 234 E. 17TH ST SUITE 205
R �I CIVIL ENGINEERS PLANNERS SURVEYORS COSTA MESA, CA 92627
since 1981 Phone 949/548-1192
Fax 949/548-6516
December 1 2008
Board of Directors
Costa Mesa Sanitary District
628 W 19th Street
Costa Mesa, CA 92627
RE. Proposal to Begin Design Phase
Project#183-2 Bristol Street Sewer n/o Randolph
Dear Board of Directors
Project #183 is an on-going project in the Capital Improvement Program (CIP) with a
yearly funding of $700 000 The funding allows the District to repair and rehabilitate the
330 mile sewer system as needed based on the CCTV project results
The first project completed under the program was the elimination of the hotspot
(defined as a line segment requiring cleaning more often than once per year) at Victoria
Street and Harbor Blvd This proposal is similar as a 175 foot line in Bristol Street
northerly of Randolph Avenue is a hotspot requiring quarterly cleaning due to two large
sags in the line. Sags collect debris and grease which solidifies into a mass that blocks
the flow One of the sags is so severe the water level is up to 10 o clock and 2 o clock
in the pipe. The main line serves the Camp on the west and the Lab on the east, both
of which have multiple restaurants.
The Camp on the west does have grease interceptors but the Lab does not, having
been built prior to the FOG program inception. The Lab is monitored regularly and may
be considered for interceptors if the reconstruction of the sags does not eliminate the
hotspot.
In addition to the reconstruction of the aforementioned line two downstream manholes
need rebuilding the channels and there is another sag adjacent to one of these
manholes, all as shown on the attached Exhibit A Please note sags cannot be
removed with no-dig technology since the liner pipe automatically assumes the slope of
the host pipe Sags are low points where there is a dip in the line One option to be
investigated during the design phase will be reconstructing only the northerly 40 feet of
the sewer main where the sags are located.
The proposed budget for the project is shown below and it is recommended the Board
authorize the design phase to be completed at the following hourly rates, not to exceed
the total shown for the design phase costs. Costs for soils engineering and traffic
engineering are by separate agreement between the consultants and the District.
Because the construction limits are so small, the standard of determining the design
phase as a percentage of the construction cost is not possible.
It is also noted Bristol Street is under a City of Costa Mesa street cut moratorium that
ends in September 2009 Construction is scheduled to begin shortly after the
moratorium. Construction during a street cut moratorium requires extensive pavement
reconstruction
Estimated Construction Costs
1 175 L.F 8' VCP @ $350/ft $ 61,250 00
2. Rechannel 2 MH's @ $2,500/ea 5 000 00
3 Sag in Randolph Sewer LS @ $15 000/LS 15,000.00
SUB-TOTAL $ 81,250 00
Contingencies 15% 12,187.50
Project Budget $ 93 437 50
Proposed Project Costs
Design, RBH $ 15 440
Soils Engineering Report $ 10 000 estimate
Traffic Engineering $ 10 000 estimate
Construction $ 93 437
Inspection Staking Admin $ 14 140
Reserve $ 15,000
TOTAL $158 017
RBH Hourly Engineering Rates
Engineer $ 85 per hour
Inspector $ 60 per hour
2-man survey Crew $230 per hour
Billing is only for actual time worked and the design phase work is proposed up to the
point of bid opening.
Sincerely
Robin B Hamers P E.
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#183-2 Design and Inspection Worksheet
Design
Surveying (topo) 8 hrs. @ $230/hr
Engineering 160 hrs. @ $85/hr
Total = $15,440
Inspection
Surveying (staking) 8 hrs. @ $230/hr
Inspection 120 hrs. @ $60/hr
Engineering/Admin. 60 hrs. @ $85/hr
Total = $14,140