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TO- BOARD OF SUPERVISORS
FROM: J. MICHAEL WALFORD, PUBLIC WORKS DIRECTOR
DATE: NOVEMBER 4, 1997
SUBJECT: Determine the Need to Continue the Emergency Action Regarding the Repair of"Hill 310"
Land Creep, Bay Point, Project No.: 4500-6G5094-96
SPECIFIC REQUEST(S)OR RECOMMENDATION(S)&BACKGROUND AND JUSTIFICATION
I. Recommended Action:
DETERMINE that there is a need to continue the emergency action taken by .the Board of
Supervisors on June 4, 1996, pursuant to Public Contract Code Sections 22035 and 22050, to
repair the "Hill 310" Land Creep, Bay Point.
II. Financial Impact:
Total cost of repairs cannot be fully determined at this time, but staff is developing an estimate
for completion of the repair.
Continued on Attachment: X SIGNATURE:
1
RECOMMENDATION OF COUNTY ADMINISTRATOR
RECOMMENDATION OF BOARD COMMITTEE
APPROVE OTHER
SIGNATURES :
ACTION OF BOARD ON 97 APPROVED AS RECOMMENDED OTHER
t hweW ce y that this Is a true and coned comer of
rn action taken and entered on the minutes W-lto
board of Supervisors on the date shown.
,
ATIT
PHIL 6ATCHELOR,cierk'errhe board
of Supervisors and County Administrator
J
VOCE OF SUPERVISORS
UNANIMOUS (ABSENT )
AYES: NOES:
ABSENT: ABSTAIN:
JPM:RM:tt
G:\CONST\BO\H3R-4.T11
Orig.Div: Public Works(Construction)
Contact: Joseph P.Murphy(313-2320)
cc: CAO
Auditor/Controller
County Counsel
GMEDA
Design Div.
Construction Div.-R.Bruno (Original to Hill 310 Reconstruction file)
-Copy to Hill 310 Landcreep Repair file
-Copy to Hill 310 Landscaping file
Maintenance Div.
Contractor
Determine the Need to Continue the Emer enc Action Regarding the Repair of"Hill 310"Land Creep
✓ November 4, 1997 g y g g P P
Page Two
III. Reasons for Recommendations and Background:
A. On February 26, 1996, Public Works and Building Inspection were notified that cracks
were occurring in Beaulieu Court. The County hired a geotechnical firm to identify the
cause of the slide, and recommend and direct remedial actions to mitigate land movement.
B. On March 19, 1996, the Board of Supervisors concurred in the County Administrator's
proclamation of a local emergency.
C. On June 4, 1996, the Board of Supervisors declared an emergency and authorized the
Public Works Director to proceed in the most expeditious manner to repair the area subject
to creep.
D. Repair status:
Work on the Hill 310 Road Reconstruction Project began on June 23, 1997 and is
complete, except for change order work, which is 99% complete. The estimated date of
completion is October 31, 1997.
Subsequent to this project, Consolidated Landscape Services has completed the Hill 310
Landscape Project. This project concludes the Hill 310 Land Creep Stabilization series
of road related construction contracts.
-On September 3, 1997, the Director of Public Works awarded contracts to Geo Grout
Incorporated and William Dahn Construction for repairs to eleven properties affected by-
the land creep. The repair work started on September 8, 1997 and completion is expected
within 3 months. Our project management consultant, O'Brien-Kreitzberg, is administering
the repair contracts.
Geo Grout Incorporated has completed the foundation leveling of three residences and
anticipates completing the two remaining houses by mid-November. William Dahn
Construction has replaced the concrete flatwork at two residences and is proceeding with
the interior and exterior finish work on several houses. Landscape replacement is
expected to begin by mid-November.
IV. Consequences of Negative Action:
These projects are part of a series of sequential construction projects that will stabilize the
landslide and restore the streets, sidewalks, and residences of the affected neighborhood.
A negative action would stop this process.