HomeMy WebLinkAboutMINUTES - 05041993 - 1.19 TO: BOARD OF SUPERVISORS
FROM: J. MICHAEL WALFORD, PUBLIC WORKS DIRECTOR
DATE: May 4, 1993
SUBJECT: APPROVAL OF CONTRACT CHANGE ORDER NO. 2 FOR AIP 3-06-0008-05 AT CONTRA
COSTA COUNTY-BYRON AIRPORT
SPECIFIC REQUES-I'(S) OR RECOMMF.NDAMON(S) &BACKGROUND AND JUS HCA71ON
I. Recommended Action:
AUTHORIZE the Public Works Director or his designee to execute Contract.Change Order No. 2 to
compensate the Contractor, Dutra Construction, for additional work at Contra Costa County-Byron
Airport.
II. Financial Impact:
This Change Order requires an increase of$149,149.00 to the Contract price to date of$499,122.60,
resulting in a Contract price of $648,271.60 (Funding is 90% Federal Aviation Administration and
10% Airport Enterprise Fund).
III. Reasons for Recommendations and Background:
The Change Order provides for the remainder of the Wetlands construction projects that are called
for in the County's Corps,of Engineers' 404 permit except for some minor drainage modifications.
By way of background, a portion of the Wetlands mitigation was designed and bid as a separate
project last summer. Due to time constraints and uncertainties in the final scoping of the project,
certain of the less critical.wetlands were not included in the Bid Documents.
The County's Environmental Consultant has now completed all negotiations with the various
agencies and is confident that this construction will provide the wetlands replacement site acreage
required. The original bid from Dutra was one of six, and their prices were very favorable. The
remaining wetlands construction is very similar to work that was previously bid, and this was the
basis in beginning negotiations for additional work. Since Dutra has already gained substantial
knowledge regarding the construction of wetlands, they were able to reflect some savings in their
Continued on Attachment: SIGNATURE:
i
_RECOMMENDATION OF COUN'T'Y ADMINISTRATOR RECOMKiENDATWNOF OARD COMMITTEE
APPROVE OTHER
SIGNATURE(S):
ACTION OF BOARD ON Mff 4 1993APPROVED AS RECOMMENDED OTHER
VOTE OF SUPERVISORS
UNANIMOUS (ABSENT )
AYES: NOES:
ABSENT: ABSTAIN: I hereby certify tnat this is a true and correct copy�ot
an action taken and entete;d on the minutes of the
Board of Supe�lq,�o,�the�aptb shown.
HEW:rs ATTESTED: ff-0 L� 993 _
c:4.t5 PHIL BATCHELOR,Clerk of the Board ..
of Supervisors and unty Administrator
Orig Div: Airports (Contact H. Wight 646-5722)
cc: County Administrator By ,Deputy
Public Works Director
Public Works Accounting
Auditor/Controller
Aviation Advisory Committee
Federal Aviation Administration
Ferma Corporation
Hodges & Shutt
SUBJECT: APPROVAL OF CONTRACT CHANGE ORDER NO. 2 FOR AIP 3-06-0008-05 AT
CONTRA COSTA COUNTY-BYRON AIRPORT
May 4, 1993
Page 2
price for additional work. We now believe that the County has received a very favorable proposal from
Dutra and recommend that the remaining wetlands construction be completed under their original
contract. This would complete the environmental construction on the project, with the exception of a
small diversion structure that will require some additional civil engineering and hydraulic studies. This
remaining work will be included in an upcoming construction project and bid as a separate item.