HomeMy WebLinkAboutMINUTES - 08052008 - C.19 _
TO: BOARD OF SUPERVISORS,BOARD OF DIRECTORS,
L, � Contra
OF THE BLACKHAWK GEOLOGICAL HAZARD 4.
ABATEMENT DISTRICT :. Costa
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FROM: JULIA R. BUEREN, PUBLIC WORKS DIRECTOR County
COUK
DATE: August 5, 2008
SUBJECT: APPROVE AND AUTHORIZE the Blackhawk Geologic Hazard Abatement District (GHAD)
General Manager, Richard D. Short, Kleinfelder West, Inc., or designee, to execute a contract with
Cagwin & Dorward Landscape Contractors, for landscape restoration services, Danville area.
(Blackhawk GHAD Funds) (District III) Project No.: 7760-6X5147
SPECIFIC REQUEST(S)OR RECOMMENDATION(S)&BACKGROUND AND JUSTIFICATION
RECOMMENDED ACTION:
APPROVE AND AUTHORIZE the Blackhawk GHAD General Manager,Richard D. Short,Kleinfelder West,Inc.
or designee, to execute a contract with Cagwin & Dorward Landscape Contractors in an amount not to exceed
$26,002.00,to provide landscape restoration services to private property located within the GHAD, for the period
April 1, 2008 through June 30, 2009, Danville area.
FISCAL IMPACT:
There is no impact on the County General Fund. The Blackhawk GHAD is funded 100% through revenues
assessments levied on properties within the boundaries of the Blackhawk GHAD.
CONTINUED ON ATTACHMENT: ❑x SIGNATURE: JAr6�__
RECOMMENDATION OF COUNTY ADMINISTRATOR RECOMMENDATION OF BOARD COMMITTEE
APPROVE OTHER
SIGNATURE(S):
ACTION OF BOARD ON APPROVED AS RECOM NDED ✓ OT ER
VOTE OF SUPERVISORS: I HEREBY CERTIFY THAT THIS IS A TRUE AND CORRECT
/ COPY OF AN ACTION TAKEN AND ENTERED ON
V UNANIMOUS(ABSENT ow` ) MINUTES OF THE BOARD OF SUPERVISORS ON THE
AYES: NOES: DATE SHOWN.
ABSENT: ABSTAIN:
Contact: Warren Lai,Special Districts (313-2180)
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G:\SpDist\Board Orders\2008\Board Orders 08-05-08\BO Cagwin Dorward- ATTESTED V
$26,002.doe JOH CULL6f CLERK OF THE BOARD OF
SUPERVISORS and County Administrator
cc: County Administrator
Assessor
Auditor-Controller
Community Development BY: DEPUTY
County Counsel
V.Zayas,Special Districts
' SUBJECT: APPROVE AND AUTHORIZE the Blackhawk Geologic Hazard Abatement District (GHAD)
General Manager, Richard D. Short, Kleinfelder West, Inc., or designee, to execute a contract
with Cagwin & Dorward Landscape Contractors, for landscape restoration services, Danville
area. (Blackhawk GHAD Funds) (District III) Project No.: 7760-6X5147
DATE: August 5, 2008
PAGE: 2 of 2
REASONS FOR RECOMMENDATIONS AND BACKGROUND:
During a heavy rain event on March 27, 2006 a landslide occurred on the slope behind 38 Rosewood Court.
Mobilized landslide debris overtopped an existing concrete retaining wall at the rear of the property and deposited
several hundred cubic yards of slide debris within the landscaped back yard of the property at 38 Rosewood
requiring immediate mitigating actions by the GHAD to control the slide and prevent advancement of the debris into
the residence. Impacted during the event was an existing decorative waterfall and intensively landscaped areas
behind the residence.
In September 2006,consulting engineers produced repair schemes including conventional excavation of the failed
area and rebuilding the slope with drained engineered fill.
Construction repair work was commenced on October 10,2006. In an effort to recover and reuse sufficient on-site
soil to rebuild the slope, additional damage was sustained to the existing downslope landscaping. The existing
waterfall,buried in slide debris sustained irreparable damage as did adjacent landscaping during the operation.This
operation was necessary to facilitate the repair and alternative methods, including harvesting nearby material and
importing new material were deemed economically impractical.
On December 7, 2007 an estimate from Cagwin & Dorward was received which enumerated and quantified the
replacement of plantings, irrigation and lighting destroyed or damaged during the landslide event or subsequent
repair work. This restoration work is to be funded in accordance with Section VI-H "GHAD Funding or
Reimbursement for Damaged or Destroyed Structures or Site Improvements".Pursuant to Section VI-H not greater
than 10% of the construction repair costs will be allowed under this provision. Construction repair costs totaled
$283,910.74*.
* Administrative costs, including engineering services estimated at 25% of construction costs.
CONSEQUENCES OF NEGATIVE ACTION:
Without Board approval, the District would be unable to fully restore the site and would not be fullfilling a tenet
of its Plan of Control allowing for this restoration work.