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TO: BOARD OF SUPERVISORS, AS GOVERNING Contra`�'=� `�'`'
BOARD OF THE FLOOD CONTROL & WATER. ,'
~ _ Costa
CONSERVATION DISTRICT oiP ��
FROM: MAURICE M. SI--IIU, CHIEF ENGINEER ` "��` County
DATE: March 18, 2008
SUBJECT: CONTINUE the emergency action originally taken by the Board of Supervisors on April 10, 2007,
regarding the Lower Walnut Creek Interim Protection Measures project, Pacheco area. (Flood Control
Zone 313 Funds) (Districts 1.1 & IV) Project No. 7520-6BS345
SPECIFIC REQUESTS)OR RLC'OMMENDAIION(S) BACKGROUND AND.IUSTIFIC'AIION .
RECOMMENDED ACTION:
DETERMINE that there is a need to continue the emergency action taken by the Board of Supervisors on
April 10,2007,pursuant to-Public Contract Codc Sections 22035 and 22050,to implement the Lower Walnut Creek
Interim Protection Measures project,.Pacheco area.
FISCAL. IMPACT:
The total estimated contract cost is S8,500,000, funded by Flood Control Zone 3B Funds.
CONTINUED ON ATTACHMENT: ❑x SIGNATUR
RF,('O-,INIEVDA"I'IONOF(:'Ot[NTN'ADi\11VIs"r12ATOR RECONEN1EVDA"I'10\ 13()ARI ('O I"" EE
APPROVE. (YrIIER
SIGNATI RE(S):
ACTION OF BO,, ) "N ( �GV(� APPR(:)VI{)AS RECOMMI NIA:I) ~ (3i(I IF.R
VO-I:OF SUPERVISORS: I I II RI:BY('I RTIFY TI IAT T IIS IS A TRI IE AND C'CW1zI.0-T
COPY OF AN AC'I'ION TAKFN AND EN'IFR1i1) ON
I INANIM(.)1_IS(.ABSEN f ) MIND IIS OF THE BOARD OF SUPERVISORS ON THE
AYLS: NOFS: DATE SHOWN.
ABSENT: ABSTAIN:
Contact: Greg Connaughton(92 5)±132270
G:`IFId01\C3oard Orders 2005(.hiward`:2008 130\1.nwcr Walnut C'rccl:Limergency C30 A-1"I I:[S I'I{I)
3-I R Oti.dix JOHN CULLEN,C 1:RK OF TI IE BOARD OI'
SUPI:RVIS(:)RS
cc: Counh•Adininislralor
Auditor—Contrullcr
Public Works: 1 -
Maurice M.Shiu,Chief Engineer BY: DEPI.i'11'
R.Mitch Avalon,Deputy Chief Lngincer
Kevin Emieh,C'on5ll"UCLI011
(iregtonnaughron, :food Control
Paul Deljeas,Flood Control
C 73
SUBJECT: CONTINUE the.emergency action originally taken by the Board of Supervisors on April 10, 2007,
regarding the Lower Walnut Creek Interim Protection Measures project, Pacheco area.
(Flood Control Zone 3B Funds) (Districts lI & IV) Project No. 7520-6138345
DATE: Marcll 18, 2008
PAGE: 2 of 2
REASONS FOR RECOMMENDATIONS AND BACKGROUND: .
A. On April 10, 2007, the Board of Supervisors declared an cmer:gency and authorized the Chief Engineer to
proceed in the most expeditious manner to repair or replace the Lower Walnut Creek flood control facility as
directed by the US Army Corps of Engineers.
B. Repair status:
The Contra Costa County Flood Control and Water Conservation District(District)prepared the Lower Walnut
Creek Corrective Action Plan and presented it to the.US Army Corps of Engineers for consideration on.lune 11,
2007. A status report, including this Corrective Action Plan(CAP),was presented to the Transportation,Water
and Inlrastructure Conirrrittee on .iune.25, 2007. Project plans were prepared and the District contracted with
Pacific States Environmental Consultants to construct the first phase of the Lower Walnut Creek Interim
Protection Measures project pursuant to the CAP. This first phase of the project was completed in early
December 2007. However, additional work is required to fully implement the CAP.
The CAP is.currently under review by US Army Corps of Engineers Headquarters. The full scope and schedule
ol'tlhe CAP will not be known until completion of the federal review.
CONS EQUENCES'OF NEGATIVE. ACTION:
NollcOnCUITenCe with the above recommendation may significantly delay implementation of the remaining CAP
work in Lower Walnut Creel: flood control facility and prevent the Disirict from meeting the correction schedule
required by the US Army Corps of Engineers.