HomeMy WebLinkAboutMINUTES - 07281992 - 1.4 TO: BOARD OF SUPERVISORS
FROM: J. MICHAEL WALFORD, PUBLIC WORKS DIRECTOR
DATE: July 28, 1992
SUBJECT: Amend the Consulting Services Agreement with Centennial Civil Engineers, Inc.
State Route 4/13ailey Road Interchange Project
Project No.: 4460-6X4159
SPECIFIC REQUEST(S) OR RECOMMENDATION(S) &BACKGROUND AND JUSTIFICATION
I. Recommended Action:
Approve and Authorize the Public Works Director to execute Contract Amendment No. 1 to the
Consulting Services Agreement with Centennial Civil Engineers, Inc., for the design of the State
Route 4/Bailey Road Interchange Project in the West Pittsburg area.
II. Financial Impact:
There will be no financial impact to the County General Fund. This Amendment will be funded
by Contra Costa Transportation Authority (CCTA) Measure "C". CCTA's Projects and Programs
Committee recommended approval of County's request on July 13, 1992, and CCTA approved
the allocation on July 15, 1992. The increase is $735,000, for a new contract limit of$4,965,000.
III. Reasons for Recommendations and Background:
A. Stage Construction/Traffic Handling Plans.
The original contract was assumed to be a minimal design effort of nineteen (19) plan sheets
for this activity. This was based on the assumption that a detailed plan was not warranted
because the contractor would revise the stage construction operation based upon his own
productivity schedule and the schedule of his subcontractors. Caltrans, however, is now
requiring significantly more details, such that it will require an additional 101 plan sheets. The
estimated cost to complete the additional stage construction plan sheets is 5,000 plus a 10%
contingency of $37,000, for a total increase of $412,000.
v e
Continued on Attachment: X SIGNATURE: W
RECOMMENDATION OF COUNTY ADMINISTRATOR
RECOMMENDATION OF BOARD COMMITTEE
APPROVE OTHER
SIGNATURE(S):
ACTION OF BOARD ON JUL 2 8 1992, APPROVED AS RECOMMENDED V OTHER _
VOTE OF SUPERVISORS
If_ UNANIMOUS (ABSENT )
AYES: NOES:
ABSENT: ABSTAIN: I hereby certify that this Is a true and correct copy Df
an action taken and entered on the minutes of the
RVF:pe Board of Supervisors on the date shown.
a\BO:CCEAMD 28.t7 ATTESTED: -.6�1 2 R 1992
PHIL BATCHELOR,Clerk of the Board
Orig. Div: Public Works (MP) of Supervisors and County Administrator
cc: Accounting '
Auditor/Controller By R ��-,Deputy
Centennial Civil Engineers
P. Maxwell, CCTA
Amend Consulting Services Agreement with Centennial Civil Engineers, Inc.
June 28, 1992
Page Two
B. Out of Work Scope Surveying and Drainage Analysis.
The additional request for design surveying is to increase the survey crew size from two (2)
people to three (3) or four (4), based on Cal-OSHA's standards; the increase of parcel numbers
from 46 to 74; the cross section surveys of Contra Costa Canal; preparation of full take appraisal
maps for the Hill Street water treatment plant expansion; and, additional drainage engineering
analysis for the detention basin. The estimated increase in contract cost for this portion of the
design is $323,000.
IV. Consequences of Negative Action:
Should this request be denied, the design work for the State Route 4/13ailey Road Interchange
Project would be delayed until an agreement could be reached. This delay would affect the
construction completion date.