HomeMy WebLinkAboutAgenda Statement 1975/05/06 Item 09AGENDA ITEM N0. [ g ]
CHULA VISTA CITY COUNCIL MEETING OF: May 6, 1975
ITEM TITLE: Resolution - Approving Soils Engineer and Authorizing Funds
for Soils Investigation of "J" Street Storm Drain
Trench Backfill
INITIATED BY: Director of Public Works/City Engineer ~~~^~~
BACKGROUND:
The City has met with representatives of Hubbard Construction Company 3
times during the month of April to schedule and determine the scope of the
work the contractor is to perform to repair the 48" and 54" storm drain
between East Park Lane and 4th Avenue.
Mr. Hubbard has agreed to do the remedial work in accordance with
Addendum No. 2 to the agreement approved by Council Resolution No. 7597
on January 14, 1975. Mr. Hubbard, however, does not want to uncover the
pipe and remove the trench backfill where it meets the original contract
specifications.
The staff has agreed to the City retaining a soils engineer to take
sufficient soils tests along the entire trench from East Park Lane to
4th Avenue to determine what areas of the trench backfill do or do not
meet original project specifications. The City will pay for the cost of
the compaction tests. City forces will provide labor and equipment for
digging 16 excavations within the trench and will provide the needed
traffic control. The contractor has agreed to pay for the sand equivalent
tests.
Upon receipt of the test result s, report and recommendations of the soils
engineer, the City will meet with representatives of Hubbard Construction
Company to determine those areas of the trench backfill which meet the
original project specifications and to determine those areas of the
trench backfill which must be removed and replaced.
(continued on supplemental page 2)
ATTACHED: Resolution [X] Ordinance [ ] Agreement ( ] Plat [ ]
See EXHIBITS ~ ] No. 1
Financial Statement:
Estimated cost of soils tests $2665
Contingencies for additional tests 835
Requested expenditure from 28-6100-141-A $3500
Gas Tax Budget - J Street widening, Broadway to Third Avenue
Commission-Board Recommendation:
N.A.
Department Head Recommendation:
1. City Council approve retaining the firm of Benton Engineering, Inc.
2. City Council authorize the expenditure of $3500 from Account
28-6100-141-A to cover the cost of performing the soils tests.
City Manager Recommendation:.
Concur
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Item No. 9
Supplemental page 2
The City's consulting engineers, the firm of Bement-Dainwood-Sturgeon,
will have a representative on site while trench backfill is being
exposed and the soils engineer is gathering samples and performing
tests. The City's consulting engineer will document the condition of
the trench as the trench backfill is exposed. Anew agreement or an
amendment to the City's existing agreement with the consulting
engineer will be required before the contractor begins his remedial
work.
The contractor will begin his repair of the "J" Street storm drain about
the first of June if the soils engineer can complete his investigation
and report by the third week of May.
We have received a proposal from the soils engineering firm of Benton
Engineering, Inc. Their estimated cost for taking 40 borings and
drive samples and 16 in-place density tests is $2665. As the trench
is exposed and our consulting engineer analyzes the situation, it may
be necessary to obtain additional samples. For this reason I am
requesting that the City Council authorize the expenditure of $3500
to cover the cost of the soils investigation.
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