HomeMy WebLinkAboutMINUTES - 08121997 - C19 _ c 1q
TO: BOARD OF SUPERVISORS, AS THE GOVERNING BODY OF THE CONTRA COSTA
COUNTY FLOOD CONTROL AND WATER CONSERVATION DISTRICT
FROM: J. MICHAEL WALFORD, CHIEF ENGINEER
DATE: August 12, 1997
SUBJECT: Approve 1997 Storm Damage Repair Project, in various areas throughout the County.
Project No: 7520-61391_90-97 CDD-CP #97-63
Specific Request(s) or Recommendation(s) & Background & Justification
I. RECOMMENDED ACTION:
APPROVE Project, and
DETERMINE that the project is a California Environmental Quality Act (CEQA) Class 1d
Categorical Exemption, and DIRECT the Chief Engineer to prepare contract plans and
specifications for construction.
Continued on Attachment: x SIGNATURE:
RECOMMENDATION OF COUNTY ADMINISTRATOR
RECOMMENDATION OF BOARD COMMITTEE
APPROVE —OTHER
SIGNATURE(S): C f
ACTION OF BOARD ON C� U 12I COO APPROVED AS RECOMMENDED_OTHER
VOTE OF SUPERVISORS
�/ UNANIMOUS (ABSENT )
AYES: NOES:
ABSENT: ABSTAIN:
g:\design\bo\bo97strm.wpd Q Aare cafffy fatal We Is a fjna and conedCly of
an action taken and entered on the minutes of tha
Orig.Div: Public Works(Design Division) Board of supery sore on the date shown.
Contact: J.Frattini,Design ATTESTED:
cc: County Administrator PHIL BATCF LOR,Clerk of thd board
Attn: E.Kuevor of Supervisors and County Administrator
Auditor-Controller
PW Accounting
Construction sy Deputy
Community Development-A.Woods
SUBJECT: Approve 1997 Storm Damage Repair Project, in various areas throughout the County.
Project No: 7520-6139L90-97 CDD-CF #97-63
DATE: August 12, 1997
PAGE: 2
DIRECT the Director of Community Development to file a Notice of Exemption with the County
Clerk.
DIRECT the Chief Engineer to arrange for payment of the $25.00 handling fee to the County
Clerk for filing of the Notice of Exemption.
II. FINANCIAL IMPACT:
The estimated project cost is $380,000, funded by FEMA and various Flood Control District
funds. (No impact to General Fund).
III. REASONS FOR RECOMMENDATION/BACKGROUND:
The project includes the repair of storm-damaged flood control channel banks at a number of
sites along several creeks in Contra Costa County, all within Contra Costa County Flood
Control. and Water Conservation District right-of-way.
It is needed to prevent further erosion of the channel banks. Without corrective action, further
bank erosion at these sites will result in:
1. Loss of the channel maintenance access road and, eventually, loss of private property.
2. Increased sedimentation deposition downstream resulting in increased channel
maintenance costs.
IV. CONSEQUENCES OF NEGATIVE ACTION:
Delay in approving the project will result in a delay of design and construction and may
jeopardize funding.
CALIFORNIA ENVIRONMENTAL QUALITY ACT
Notice of Exemption
Contra Costa County Community Development Department
651 Pine Street, 4th Floor - North Wing, McBrien Administration Building
Martinez, CA 94553-0095
Telephone: (510) 313-2284 Contact Person: Joseph J. Olsen - Public Works Dept.
Project Description, Common Name (if any) and Location: 1997 Storm Damage Repairs, County File
CP# 97-63 : Project Description: The project consists of repairing bank erosion and slip-outs by excavating and
removing loose slope material and replacing it with rock slope protection and in one location repairing a channel bottom
scour. Repairs will occur at the following sites:
Site Location Type of Repair
Sycamore Vly Rd.d/s of Morninghome Rd. Repair 30'x 6' &40'x 10' bank erosion wit h (RSP).
Sycamore Vly. Rd u/s of Tunbridge Rd. Repair 70'x 12',40"x 15', & 50'x 10", 50'x18', 65'x11'
bank erosion with RSP.
Pine Crk. channel d/s of Perada Dr. (No.) Repair 36'x 18' bank erosioin with RSP.
Pine Crk.from Perada No.-Perada So. Repair 48'x 8',30'x 8',21'x 16', 14'x 12', &48'x 8' bank
erosion and 35'x10' bottom scour with RSP.
Green Vly. channel behind Buckeye Ln. Repair 60'x 20" back erosion with RSP.
Wildcat Creek Desilting Desilt channel and basin.
San Ramon Creek d/s of Fostoria Wy. Repair 45'x20' bank erosion, 15'x20'concrete apron.
San Ramon Creek d/s Miranda Crk. Repair 1 00'x 8' bank erosion with RSP.
San Ramon Creek d/s DS 3A Repair 100'x 15'bank erosion with RSP and replace 15'
x10'concrete apron& 15'x 3'eroded bank with concrete
apron.
Grayson Creek u/s Second AVe. Repair 15'x 8',25'x 6',&30'x 8' bank erosion with RSP.
Grayson Creek u/s Chilpancingo Pkwy Repair 90'x 15' bank erosion with RSP.
Marsh Creek channel u/s SR4 Repair 40'x 10' &30'x 10' bank erosion with RSP.
Walnut Crk. channel no. of Imhoff Dr. Repair 15'x 25' bank erosion with RSP.
Rodeo Crk.d/s 7th St. Repair 14'x 4' bank erosion with RSP.
Sycamore Creek-So. of Sunshine Dr. Repair 30'x10' bank erosion with RSP
Project location: Creek bank repairs are located on several creeks within the county.
This project is exempt from CEQA as a:
Ministerial Project(Sec. 15268) _ Other Statutory Exemption, Section_
Declared Emergency(Sec. 15269(a)) _ General Rule of Applicability(Section 15061(b)(3)
Emergency Project(Sec. 15269(b) or(c))
✓ Categorical Exemption, Class 1d
for the following reason(s): The proposed project consists of repairing eroded creek and flood control channel banks with
rock slope protection and in one location reapairing a channel bottom scour. The repairs will not involve an expansion of use
beyond that previously existing nor result in the removal of any scenic resources.
Date: By:
Community Development Department Representative
AFFIDAVIT OF FILING AND POSTING
I declare that on I received and posted this notice as required by California Public
Resources Code Section 21152(c). Said notice will remain posted for 30 days from the filing date.
Signature Title
Applicant:
County Public Works Department
255 Glacier Drive
Martinez, CA 94553
Attn: Janet Frattini County Clerk Fee$25 Due
h:\noe's\97storm.noe
PUBLIC WORKS DEPARTMENT
CONTRA COSTA COUNTY
DATE: August 4, 1997
TO: Catherine Kutsuris, Senior Planner, Community Development
FROM: Joseph J. Olsen, Associate Engineer, Design Division
(Contact Person: Janet Frattini )
SUBJECT: MANDATORY REFERRAL FOR GENERAL PLAN CONFORMANCE
We have reviewed the attached project, CP# 97-63 , 1997 Storm Damage Repairs to determine if
mandatory referral for General Plan Conformance, as required by Section 65402 of the Government Code,
is necessary.
I recommend the project needs no further mandatory referral clearance from County staff subject to the
following actions:
(✓) This project has been determined to be exempt from 65402 review.
( ) This project has been determined to be exempt from 65402 review in accordance with the
Board of Supervisors Resolution 81/522 because the project involves a road alignment
project of a minor nature.
( ) Community Development staff makes the following attached recommendation which should be
incorporated into the staff report on this matter.
The project needs mandatory referral and we request Community Development staff to process this project
in the following manner:
( ) 65402 review is required. Community Development staff should carry this matter before the
appropriate Planning Commission. The map of the project site and description is attached.
( ) 65402 review must be withheld until completion of an Environmental Impact Report on this
project.
( ) Other procedures.
Approved By:
Community Development
h:\mr4gpc\97storm.gpc
(Form Revised 1-8-97)
vvvn•-r. :jtVAKI M E N T
COSTA INITIAL STUDY
COUNTY OF ENVIRONMENTAL SIGNIFICANCE
PROJECT# 7520-6B9L90-97
CP#97-63
PROJECT NAAME:19�97 Storm Damage Repairs
PREPARED BY: Janet Fratt'n' DATE: August 4, 1997
APPROVED BY: IVB. DATE: E` J�—
d"
RECOMMENDATIONS:
(✓)
Cat '.al Exemption (Class 1d) ( ) Negative Declaration
nvironrr Ot Impact--Report Required O Conditional Negative Declaration
�rhe project will not have a significant effect on the environment, The recommendation is based
on the following:
The proposed project consists of repairing eroded creek and flood control channel banks with rock slope
protection and in one location repairing a channel bottom scour. The repairs will not involve an
expansion of use beyond that previously existing nor result in the removal of any scenic resources.
What changes to the project would mitigate the identified impacts .
N/A
USGS Quad Sheet Brentwood, Clayton, Diablo, Las Trampas Base Map Sheet # Various
Mare Island, Richmond, Walnut Creek Parcel# N/A
GENERAL CONSIDERATIONS:
1. Location: Creek bank repairs are located on several creeks within the county(Figures 1-12).
2. Project Description: The project consists of repairing bank erosion and slip-outs by excavating
and removing loose slope material and replacing it with rock slope protection (RSP) and in one
location repairing a channel bottom scour. Repairs will occur at the following sites:
Site Location Type of Repair
Sycamore Vly Rd.d/s of Morninghome Rd. (Fig.2) Repair 30'x 6'&40'x 10'bank erosion wit h(RSP).
Sycamore Vly.Rd u/s of Tunbridge Rd.(Fig.2 ). Repair 70'x 12',40"x15',& 50'x 10",50'x18',65'x11'
bank erosion with RSP.
Pine Crk.channel d/s of Perada Dr.(No.)(Fig.3) Repair 36'x 18'bank erosion with RSP.
Pine Crk.from Perada No.-Perada So.(Fig.3) Repair 48'x 8',30'x 8',21'x 16',14'x 12',&48'x 8'bank
erosion and 35'x10'bottom scour with RSP.
Green Vly.channel behind Buckeye Ln.(Fig.4) Repair 60'x 20"back erosion with RSP.
Wildcat Creek Desilting (Fig.5) Desilt channel and basin.
San Ramon Creek d/s of Fostoria Wy.(Fig.6) Repair 45'x20'bank erosion,15'x20'concrete apron.
San Ramon Creek d/s Miranda Crk.(Fig.7) Repair 1 00'x 8'bank erosion with RSP.
San Ramon Creek d/s DS 3A(Fig.7) Repair 100'x 15'bank erosion with RSP and replace 15'x
10'concrete apron& 15'x 3'eroded bank with concrete
apron.
Grayson Creek u/s Second AVe.(Fig.8) Repair 15'x 8',25'x 6',&30'x 8'bank erosion with RSP.
Grayson Creek u/s Chilpancingo Pkwy(Fig.8) Repair 90'x 15'bank erosion with RSP.
Marsh Creek channel u/s SR4(Fig.9) Repair 40'x 10'&30'x 10'bank erosion with RSP.
Walnut Crk.channel no.of Imhoff Dr.(Fig.10) Repair 15'x 25'bank erosion with RSP.
Rodeo Crk.d/s 7th St.(Fig.11) Repair 14'x 4'bank erosion with RSP.
Sycamore Creek-So.of Sunshine Dr.(Fig.12) Repair 30'x10'bank erosion with RSP
If flowing water exists in the creeks it will be necessary to divert water around sites to perform
work. Therefore, best management practices such as cofferdams, pilot channels, pumping, and
silt fences will be used to prevent construction generated materials from entering the water. All
loose rock slope protection will be covered with soil above the ordinary high water mark. All bare
slopes will be seeded with native grasses.
"N,,GaI UICK a11y 1VOLUIc ut the project win generate significant public concern?
[] yes [✓] no [] maybe (Nature of concern):
4. Will the project require approvalaor permits by other than a County agency?
[✓] yes o no Agency Name(s) Yes, Department of Fish & Game (1601 Streambed Alteration
Agreement) and Regional Water Quality Control Board (Section 401 Water Quality Waiver).
5. Is the project within the Sphere of Influence of any city? Yes, Brentwood. Concord, Danville,
Martinez, Pleasant Hill, Richmond, and San Ramon.
h Acatexmpt\97storm.ini
(Form Revised 2/97)
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