HomeMy WebLinkAboutMINUTES - 09232008 - C.4 TO: BOARD OF SUPERVISORS ?E,s.....L, °F
Contra
FROM: JULIE R. BUEREN, PUBLIC WORKS DIRECTOR Cotta
DATE: SEPTEMBER 23, 2008 County
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SUBJECT: DETERMINE that the Alhambra Valley Road Bank Repair is a California Environmental
Quality Act Class I Categorical Exemption; APPROVE the project and AUTHORIZE the
Public Works Director, or designee, to advertise the project, Alhambra Valley area. (Local Road
Funds) (District II) [CDD-CP# 08-06] Project No.: 0672-6U2545
SPECIFIC REQUEST(S)OR RECOMMENDATION(S)&BACKGROUND AND JUSTIFICATION
RECOMMENDED ACTION:
DETERMINE that the Alhambra Valley Road Bank Repair is a California Environmental Quality Act (CEQA)
Class I Categorical Exemption, and
DIRECT the Director of Conservation and Development to file a Notice of Exemption with the County Clerk,
and
AUTHORIZE the Public Works Director to arrange for payment of a $25 fee to Conservation and Development
for processing, and a $50 fee to the County Clerk for filing the Notice of Exemption, and
APPROVE the project, and AUTHORIZE the Public Works Director, or designee, to advertise the roject.
Continued on Attachment: ® SIGNATURE:
N.RECOMMENDATtON OF COUNTY ADMINISTRATOR ❑ RECOMMENDATIO F BOARD COMMITTEE
APPROVE ❑ OTHER
SIGNATURE(S):
ACTION OF BOARD O i �3, 00
APPROVED AS RECOMMENDED UK OTHER ❑
VOT OF SUPERVISORS
UNANIMOUS(ABSENT mCi ) I hereby certify that this is a true and correct copy of an action
AYES: NOES: taken and entered on the minutes of the Board of Supervisors on
ABSENT: ABSTAIN: the date shown.
KB:ab
G:\EngSvc\ENVIRO\BO\2008\(09-23-08)CEQA-Alhambra Valley Road RepainclocxATTESTED:
Contact: Kimani Birden,(313-2190) AQ3
Orig.Div:public Works(Environmental Section) DAVID T ,CL E�
RK OF THE BOARD OF SUPSORS AND COUNTY
Cont
cc: Administrator—Ann.E.Kuevor ADMINISTRATOR
Auditor-Controller
J.Ring-Reaves,Conservation and Development
K.Emigh,Construction By ,Deputy
A.Knapp,Maintenance
R.Urbina,Maintenance
SUBJECT: DETERMINE that the Alhambra Valley Road Bank Repair is a California Environmental
Quality Act Class lc Categorical Exemption; APPROVE the project and AUTHORIZE the
Public Works Director, or designee, to advertise the project, Alhambra Valley area. (Local Road
Funds) (District II) [CDD-CP# 08-061 Project No.: 0672-6U2545
DATE: SEPTEMBER 23, 2008
PAGE: 2 of 2
FISCAL IMPACT:
There is no impact to the County General Fund. This project is funded by Local Road Funds (100%).
REASONS FOR RECOMMENDATIONS AND BACKGROUND:
The purpose of this project is to repair a slope failure and prevent it from further damaging Alhambra Valley
Road. The slope failure was caused by roadside drainage which eroded the affected slope. The area of the slope
failure is approximately 55 feet long and 15 feet high. The slope failure has affected the road shoulder causing it
to sink toward Vaca Creek, a tributary of Alhambra Creek. Because of the instability of the slope, closure of the
southbound lane was necessary to ensure the safe passage of traffic.
Repair to this failure will require placement of approximately 350 cubic yards of riprap at a slope of 1.5:1 slope
(horizontal to vertical) to fill in the void created by the failure. Large ('/4 ton) riprap will be keyed in at the toe
of the slope to ensure stability of the repair. The riprap at the top of the slope will be capped with gravel and
compacted to build a five foot shoulder for a recovery zone on the roadway.
It is anticipated that at least one lane will remain open on Alhambra Valley Road during construction with no
additional effects on traffic beyond those resulting from the existing lane closure caused by the original slope
failure and slope repair.
CONSEOUENCES OF NEGATIVE ACTION:
Without Board of Supervisor's approval there will be a delay in the design and construction of this project.
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: (925)313-2190 Contact Person: Kimani Birden - Public Works Dept.
Project Description, Common Name (if any) and Location: Alhambra Valley Road Bank Repair, Project number: 0672-
6U2545, CP#08-06
Project Description: The purpose of this project is to repair a slope failure and prevent it from further damaging
Alhambra Valley Road. The slope failure was caused by roadside drainage which eroded the affected slope. The area of
the slope failure is approximately 55 feet long and 15 feet high. The slope failure has affected the road shoulder causing it
to sink toward Vaca Creek, a tributary of Alhambra Creek. Because of the instability of the slope, closure of the
southbound lane was necessary to ensure the safe passage of traffic.
Repair to this failure will require placement of approximately 350 cubic yards of riprap at a slope of 1.5 horizontal to 1
vertical to fill in the void created by the failure. Large 1/4 ton riprap will be keyed in at the toe of the slope to ensure stability
of the repair. The riprap at the top of the slope will be capped with gravel and compacted to build a five foot shoulder for a
recovery zone on the roadway.
All work will be performed on the creek bank; approximately 15 feet away from the existing low flow channel, using a long
arm excavator positioned on top of the creek bank. No equipment will be located in the active creek. The expectation is
that the creek will be dry, however if higher than normal flows are encountered, a dewatering system will be used during
construction to isolate the work area from active flows. The system will ensure that flow continues downstream of the
project at all times during construction. Any wildlife encountered will be relocated downstream.
It will be necessary to remove one tree; a dead tree (species unidentified)at the bottom of the failure, and some blackberry
bushes. However, the project area is densely vegetated and removal of the tree and shrubs near the slope failure is not
expected to alter the scenic quality of the surrounding area.
The project site has potential habitat for California red-legged frog (RLF), and Alameda whipsnake. Staff from the
Department met with Kim Squires from USFWS on April 22, 2008 to discuss the project. Ms. Squires agreed to append the
project to the programmatic agreement between the U.S. Army Corps of Engineers and the U.S. Fish and Wildlife Service
as long as the following avoidance and minimization measures were followed:
• A preconstruction survey will be conducted by a Service approved biologist.
• A site reconnaissance will be performed each day before the start of construction to ensure no listed species are
present.
• A conceptual dewatering plan will also be prepared in case the project site is not dry during construction.
• ESA fencing will be installed to clearly identify areas that must be avoided
• Silt fencing will be installed below the work area to ensure the creek is protected
• All equipment will operate from top of bank.
Ms. Squires agreed that the above measures would protect Alameda Whipsnakes as well as red-legged frog.
It is anticipated that at least one lane will remain open on Alhambra Valley Road during construction with no additional
effects on traffic beyond those resulting from the existing lane closure caused by the original slope failure and slope repair.
It is anticipated that at least one lane will remain open on Alhambra Valley Road during construction with no additional
effects on traffic beyond those resulting from the lane closure caused by the original slope failure and slope repair.
In order to minimize damage to any nearby trees,any roots exposed during excavation will be cut cleanly and tree branches will
be trimmed. The dead unidentified (22 inch DBH)tree and some blackberry bushes may need to be removed.
Real property transactions may be necessary in support of this project.
Project location:.The project is located in West Contra Costa County, on Alhambra Valley Road approximately 2,050 feet
east of Ferndale Road (Figs. 1-3).
This project is exempt from CEQA as a:
❑ Ministerial Project(Sec. 15268) ® Categorical Exemption,Class 15301 lc
❑ Declared Emergency(Sec. 15269(a)) ❑ Other Statutory Exemption,Section
❑ Emergency Project(Sec. 15269(b)or(c)) ❑ General Rule of Applicability(Suction 15061(b)(3)j
for the following reason(s): (insert appropriate CEQA language).
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 firing date.
Signature Title
Applicant: Department of Fish and Game Fees Due
Public Works Department ❑EIR-$2,500 Total Due: $
255 Glacier Drive ❑ Neg.Dec.-$1,800 Total Paid $
Martinez,CA 94553 ❑ DeMinimis Findings-$0
Attn:K.Birden County Clerk•$50 Receipt#:
G:\EngSvc\ENVIRO\Maint\Alhambra Valley Rd.Bank Repair\CEQA\NOE-form.doc Updated July 21,2006
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: (925) 313-2190 Contact Person: Kimani Birden - Public Works Dept.
Project Description, Common Name (if any) and Location: Alhambra Valley Road Bank Repair, Project number: 0672-
61.12545, CP#08-06
Project Description: The purpose of this project is to repair a slope failure and prevent it from further damaging
Alhambra Valley Road. The slope failure was caused by roadside drainage which eroded the affected slope. The area of
the slope failure is approximately 55 feet long and 15 feet high. The slope failure has affected the road shoulder causing it
to sink toward Vaca Creek, a tributary of Alhambra Creek. Because of the instability of the slope, closure of the
southbound lane was necessary to ensure the safe passage of traffic.
Repair to this failure will require placement of approximately 350 cubic yards of riprap at a slope of 1.5 horizontal to 1
vertical to fill in the void created by the failure. Large 1/4 ton riprap will be keyed in at the toe of the slope to ensure stability
of the repair. The riprap at the top of the slope will be capped with gravel and compacted to build a five foot shoulder for a
recovery zone on the roadway.
All work will be performed on the creek bank; approximately 15 feet away from the existing low flow channel, using a long
arm excavator positioned on top of the creek bank. No equipment will be located in the active creek. The expectation is
that the creek will be dry, however if higher than normal flows are encountered, a dewatering system will be used during
construction to isolate the work area from active flows. The system will ensure that flow continues downstream of the
project at all times during construction. Any wildlife encountered will be relocated downstream.
It will be necessary to remove one tree; a dead tree (species unidentified) at the bottom of the failure, and some blackberry
bushes. However, the project area is densely vegetated and removal of the tree and shrubs near the slope failure is not
expected to alter the scenic quality of the surrounding area.
The project site has potential habitat for California red-legged frog (RLF), and Alameda whipsnake. Staff from the
Department met with Kim Squires from USFWS on April 22, 2008 to discuss the project. Ms. Squires agreed to append the
project to the programmatic agreement between the U.S. Army Corps of Engineers and the U.S. Fish and Wildlife Service
as long as the following avoidance and minimization measures were followed:
• A preconstruction survey will be conducted by a Service approved biologist.
• A site reconnaissance will be performed each day before the start of construction to ensure no listed species are
present.
• A conceptual dewatering plan will also be prepared in case the project site is not dry during construction.
• ESA fencing will be installed to clearly identify areas that must be avoided
• Silt fencing will be installed below the work area to ensure the creek is protected
• All equipment will operate from top of bank.
Ms. Squires agreed that the above measures would protect Alameda Whipsnakes as well as red-legged frog.
It is anticipated that at least one lane will remain open on Alhambra Valley Road during construction with no additional
effects on traffic beyond those resulting from the existing lane closure caused by the original slope failure and slope repair.
It is anticipated that at least one lane will remain open on Alhambra Valley Road during construction with no additional
effects on traffic beyond those resulting from the lane closure caused by the original slope failure and slope repair.
In order to minimize damage to any nearby trees,any roots exposed during excavation will be cut cleanly and tree branches will
be trimmed. The dead unidentified (22 inch DBH)tree and some blackberry bushes may need to be removed.
Real property transactions may be necessary in support of this project.
Project location: The project is located in West Contra Costa County, on Alhambra Valley Road approximately 2,050 feet
east of Ferndale Road (Figs. 1-3).
This project is exempt from CEQA as a:
❑ Ministerial Project(Sec. 15268) ® Categorical Exemption, Class 15301 tc
❑ Declared Emergency(Sec. 15269(a)) ❑ Other Statutory Exemption,Section
❑ Emergency Project(Sec. 15269(b)or(c)) ❑ General Rule of Applicability(Section 15061(b)(3)j
for the following reason(s): (insert appropriate CEQA language).
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: Department of Fish and Game Fees Due
Public Works Department ❑EIR-$2,500 Total Due: $
255 Glacier Drive ❑Neg.Dec.-$1,800 Total Paid $
Martinez,CA 94553 ❑DeMinimis Findings-$0
Attn:K.Birden ®County Clerk-$50 Receipt#:
Environmental Section ® Community Development Dept.-$25
G:\EngSvc\ENVIRO\Maint\Nlhambra Valley Rd.Bank Repair\CEQA\NOE-form.doc Updated July 21,2006
Contra PUBLIC WORKS DEPARTMENT
Costa INITIAL STUDY OF
County ENVIRONMENTAL SIGNIFICANCE
PROJECT # 2445
CP# 08-06
PROJECT NAME: Alhambra Valley Road Bank Repair
PREPARED BY: Kimani Birden�L/ DATE: June 23, 2008
APPROVED BY: DATE: 6 Z5-0�
RECOMMENDATIONS:
® Categorical Exemption (15301 Class 1c) ❑ Negative Declaration
❑ Environmental Impact Report Required ❑ Conditional Negative Declaration
The project will not have a significant effect on the environment. The recommendation is
based on the following: The project consists of the reconstruction of existing facilities involving no
expansion of use beyond the current existing use.
What changes to the project would mitigate the identified impacts: N/A
USGS Quad Sheet: Base Map Sheet #: Parcel #:
Briones Valley J-10 n/a
GENERAL CONSIDERATIONS:
1. Location: The project is located in West Contra Costa County, on Alhambra Valley Road
approximately 2,050 feet east of Ferndale Road (Figs. 1-3).
2. Project Description: The purpose of this project is to repair a slope failure and prevent it from
further damaging Alhambra Valley Road. The slope failure was caused by roadside drainage which
eroded the affected slope. The area of the slope failure is approximately 55 feet long and 15 feet
high. The slope failure has affected the road shoulder causing it to sink toward Vaca Creek, a
tributary of Alhambra Creek. Because of the instability of the slope, closure of the southbound lane
was necessary to ensure the safe passage of traffic.
Repair to this failure will require placement of approximately 350 cubic yards of riprap at a slope of
1.5 horizontal to 1 vertical to fill in the void created by the failure. Large 1/4 ton riprap will be keyed in
at the toe of the slope to ensure stability of the repair. The riprap at the top of the slope will be
capped with gravel and compacted to build a five foot shoulder for a recovery zone on the roadway.
All work will be performed on the creek bank; approximately 15 feet away from the existing low flow
channel, using a long arm excavator positioned on top of the creek bank. No equipment will be
located in the active creek. The expectation is that the creek will be dry, however if higher than
normal flows are encountered, a dewatering system will be used during construction to isolate the
work area from active flows. The system will ensure that flow continues downstream of the project at
all times during construction. Any wildlife encountered will be relocated downstream.
kb:
G:\En9Svc\ENVIR0\Ma1nl\Alhambra Valley Rd.Bank Repair\CEQA\Initial Study-Alhambra Valley road bnk repair.doc
Form Updated: July 21,2006
l
It will be necessary to remove one tree; a dead tree (species unidentified) at the bottom of the failure,
and some blackberry bushes. However, the project area is densely vegetated and removal of the
tree and shrubs near the slope failure is not expected to alter the scenic quality of the surrounding
area.
The project site has potential habitat for California red-legged frog (RLF), and Alameda whipshake.
Staff from the Department met with Kim Squires from USFWS on April 22, 2008 to discuss the
project. Ms. Squires agreed to append the project to the programmatic agreement between the U.S.
Army Corps of Engineers and the U.S. Fish and Wildlife Service as long as the following avoidance
and minimization measures were followed:
• A preconstruction survey will be conducted by a Service approved biologist.
• A site reconnaissance will be performed each day before the start of construction to ensure no
listed species are present.
• A conceptual dewatering plan will also be prepared in case the project site is not dry during
construction.
• ESA fencing will be installed to clearly identify areas that must be avoided
• Silt fencing will be installed below the work area to ensure the creek is protected
• All equipment will operate from top of bank.
Ms. Squires agreed that the above measures would protect Alameda Whipsnakes as well as red-
legged frog.
It is anticipated that at least one lane will remain open on Alhambra Valley Road during construction
with no additional effects on traffic beyond those resulting from the existing lane closure caused by
the original slope failure and slope repair.
In order to minimize damage to any near by trees, any roots exposed during excavation will be cut
cleanly and tree branches will be trimmed. The dead unidentified (22 inch DBH) tree and some
blackberry bushes may need to be removed.
Real property transactions may be necessary in support of this project.
3. Does it appear that any feature of the project will generate significant public concern?
❑ yes ® no ❑ maybe (Nature of concern):
4. Will the project require approval or permits by other than a County agency?
® yes ❑ no (Agency Name/s); US Army Corps of Engineers
• including a Section 7 consultation
Regional Water Quality Control Board
CA Department Of Fish and Game
kb:
G:\EngSvc\ENVIRO\Maint\Alhambra Valley Rd.Bank Repair\CEQA\Initial Study-Alhambra Valley road bnk repair.doc
Form Updated: July 21,2006
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