MEMORANDUM

DATE: July 12, 2016

TO: Supervisor Scott Haggerty, Chair

Supervisor Nate Miley, Member

TRANSPORTATION AND PLANNING COMMITTEE

FROM: Daniel Woldesenbet, Ph.D., P.E.

Director of Public Works

SUBJECT: TEMPORARY ROAD CLOSURE AND DETOUR OF PALOMARES ROAD IN

CONNECTION WITH THE ALAMEDA COUNTY RESOURCE

CONSERVATION DISTRICT’S STONYBROOK CREEK CROSSINGS AND

FISH PASSAGE IMPROVEMENT PROJECT

SUMMARY:

The Stonybrook Creek Crossings and Fish Passage Improvement Project (Project) is a

collaborative project between the Alameda County Resource Conservation District (RCD) and

Alameda County Public Works Agency (PWA). The Project is located within and immediately

adjacent to the Palomares Road right of way, a County roadway, at mile marker 8.60 to 8.75 to

the north of Niles Canyon Road.

The Project includes restoration of the Stonybrook Creek banks, removal of fallen boulders from

culvert entrance, restoring culvert water passage capacity, creating fish passage step ponds, and

replacement of an old bridge with a new and seismically competent structure. The replacement

bridge will remove the existing barriers to migrating steelhead trout in Stonybrook Creek.

In order to implement the project this summer, a full road closure is necessary during the

construction period. Construction will start August 3 and will result in an estimated 12 weeks of

full road closure, ending October 26. Eliminating a temporary crossing will speed up the work

and reduce the anticipated construction window.

DISCUSSION:

Project Status

Phase 1: Downstream Crossing, Mile Marker 8.75

Creek banks restoration, removal of fallen boulders from the lower culvert crossing, culvert

modification and construction of fish passage at the creek bed was completed in 2015.

Phase 2: Upstream Crossing, Mile Marker 8.60

In 2016, construction work includes demolition and removal of the existing concrete and

masonry bridge including wingwalls and related structure, re-grading of the channel in the

vicinity of the crossing, restoration of the creek embankments and bed, construction of new,

custom modular bridge, including wingwalls and related structures, and restoration of the

existing roadway and related facilities.

The final new, custom precast bridge design was approved by the RCD, PWA and the RCD

engineer on April 20, 2016. Based on the final design, it came to our attention that a temporary

bridge option, considered at earlier periods, was no longer feasible. As such, the RCD has been

DocuSign Envelope ID: 4B2C3170-BD38-4F2D-8DBC-2A224EF30A80

seeking the alternative of a full road closure. RCD has been coordinating with PWA, Alameda

County Fire Department, and other stakeholders to minimize the impact of a full road closure.

Outreach Efforts

The RCD, National Resource Conservation District (NRCS), and PWA met with Supervisor

Valle and Supervisor Haggerty on June 30th

to discuss the options available and timeline for

construction of the project. A public meeting will be held in conjunction with the regularly

scheduled Sunol Advisory Committee Meeting on July 20th

at the Sunol Glen Elementary

School. The RCD has outreached directly with several bicycle organizations including Bike East

Bay, Fremont Freewheelers and other bicycle clubs.

With your concurrence, the PWA will forward a Resolution requesting the full Board to approve

the road closure and detours as requested by the Alameda County Resource Conservation

District.

DocuSign Envelope ID: 4B2C3170-BD38-4F2D-8DBC-2A224EF30A80

HIGH STREET BRIDGE CLOSURE NOTICE PUBLIC MEETING

July 20, 2016, 6:30pm

ROAD CLOSURE NOTICE

PALOMARES ROAD

SUNOL GLEN ELEMENTARY SCHOOL CAFETERIA A portion of Palomares Road will be closed for an extended period of time beginning August 3 in order to complete a bridge replacement over Stonybrook Creek. During construction, Palomares Road between mile post 8.70 and 8.50 will be closed to thru traffic through October 26. This meeting will discuss the closure and anticipated road delays. The closure will block traffic access along Palomares Road accessed from Niles Canyon Road/Hwy 84. Drivers, bicyclists and pedestrians will be unable to use Palomares Road to travel between Niles Canyon/Hwy 84 and Hwy 580 for the duration of the work and will need to take alternative routes. Residents past mile post 8.50 will only be able to access via Palomares Road from Hwy 580. Emergency responders and other service providers have been notified and will be prepared to provide services during the road closure. A Frequently Asked Questions sheet and map is included for your reference. For more information, please visit the Alameda County Resource Conservation District’s website at www.acrcd.org/NewsEvents.aspx. Updates will also be listed on the Alameda County Public Works website at www.acgov.org/pwa.

For more information please contact Leslie Koenig at (925) 371-0154 ext 115 or leslie.koenig@acrcd.org.

Palomares Road Closure

Stonybrook Creek Crossings Project

PROJECT

LOCATION

START ROAD CLOSURE

MILE MARKER 8.5

END ROAD CLOSURE

MILE MARKER 8.7

Palomares Road Closure August 3 to October 26, 2016

Palomares Road Temporary Closure Frequently Asked Questions

Q: Why is Palomares Road being improved? A: Palomares Road includes a narrow section of roadway which sits over an aging masonry lined culvert within the habitat-sensitive Stonybrook Creek that was built in 1938. This crossing has been subject to erosion that has created an approximately 10 foot drop in the channel resulting in considerable undercutting of the area compromising the culvert stability. In addition to structural concerns, the culvert serves as a barrier to fish passage within the stream. This project will improve the culvert and road to ensure that is safe for the traveling public now and in the future.

Q: What is included in this project? A: The new improvement include demolition and removal of the existing concrete and masonry bridge, re-grading of the channel in the vicinity of the crossing, restoration of the creek embankments and bed, construction of new, custom modular bridge, including wingwalls and related structures, and restoration of the existing roadway and related facilities. This increased size will allow a more stable flow of water, stop the ongoing deterioration within the stream, and will lessen the possibility of emergency road closures in the future.

Q: What will the construction mean for the traveling public? A: The culvert construction project will require the closure of Palomares Road between postmiles 8.50 and 8.70. Drivers, bicyclists, and pedestrians will be unable to use Palomares Road to travel between Niles Canyon/Hwy 84 and Hwy 580. The traveling public will need to take alternate routes.

Q: When will construction begin and end? A: The work is set to begin on August 3, 2016. It is anticipated that the culvert and replacement roadway construction will be complete and the road will be reopened on October 27, 2016. The construction period is limited because the creek is an environmentally sensitive habitat. Construction can only take place in dry periods to minimize any potential impacts to the environment or wildlife.

Q: Why couldn’t a by-pass road, or a phased project without road closures, be built? Was a road closure the only alternative? A: All construction alternatives were explored before determining that this approach was the least impactful of the alternatives. The constraints of the site, the habitat, and environmental sensitivity of the area made full road closure the only alternative. Through closure of the road the construction period will actually be shorter and will provide a safer completed project. The stretch of the road where this culvert is placed is a highly constrained area and in order to maintain public safety the road closure is necessary.

Q: What about impacts to residents? How will emergency response be coordinated? A: We understand that this road closure will be inconvenient for residents who use this segment of roadway. However, road safety is paramount and this improvement will ensure that this segment of roadway is safe for future travel. Emergency responders from all of the affected jurisdictions have coordinated a response plan for this time period.

Q: What has been done to notify residents about this project? A: A public meeting will be held on July 20, 2016 at 6:30pm at Sunol Glen Elementary School Cafeteria to outreach the closure to residents and interested public. Residents will be updated on the Alameda County Resource Conservation District and Alameda County Public Works websites, and signage will be place in the affected areas to notify them of the road closure.

Q: How can I learn more and stay informed? A: The Alameda County Resource Conservation District’s webpage, http://www.acrcd.org/NewsEvents.aspx and Alameda County Public Works webpage, www.acgov.org/pwa, will be updated regularly. Residents may also sign up to receive email or text message updates from the Alameda County Public Works Department.

For more information please contact Leslie Koenig at (925) 371-0154 ext 115 or leslie.koenig@acrcd.org.

505 Montgomery Street Suite 2300 San Francisco California 94111 USA

T 1 415 283 4970 F 1 415 283 4980

W www.ghd.com

GHD STANDARD A1 ATTRIBUTE BLOCK CAD File No.: GHD_G_0045_T Updated: 08-07-03 Version: 1.1

This Drawing shall not be used

for Construction unless Signed

and Sealed For Construction

GHD STANDARD A1 SHEET CAD File No.: GHD_G_0045 Updated: 08-07-03 Version: 1.1

Check

Drafting

DateDrawnRevisionNo

Rev:

Drawing No:

Original Size

Title

Project

Client

Check

DesignerDrawn

Scale

Design

Note: * indicates signatures on original issue of drawing or last revision of drawing

Plot Date: Cad File No:30 June 2016 - 9:24 AM N:\US\San Francisco\Projects\1000299 Alameda Co RCD\8410577 ACRCD Stonybrook Crk Crossing\06-CAD\Sheets\8410577 Traffic Detour Sheets.dwg

Ansi D

GHD Inc.

(Project Director)

Approved

Date

Job

Manager

Project

Director

Plotted by:

Susan Dove

Contract No.

Sht of

Reuse of Documents

This document and the ideas and designs incorporated

herein, as an instrument of professional service, is the

property of GHD Inc. and shall not be reused in whole or

in part for any other project without GHD Inc.'s written

authorization. © GHD Inc. 2012

Alameda County Resource Conservation District

Stonybrook Creek Crossings and Fish Passage Improvements

SAA

February 2015

100% PROJECT PLANS

8410577202/20/2015

Traffic Detour Map

G-002

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REVISED 6/24/2016

PALOMARES ROAD

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MARKER 8.6 - 8.75

6/30/2016

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505 Montgomery Street Suite 2300 San Francisco California 94111 USA

T 1 415 283 4970 F 1 415 283 4980

W www.ghd.com

GHD STANDARD A1 ATTRIBUTE BLOCK CAD File No.: GHD_G_0045_T Updated: 08-07-03 Version: 1.1

This Drawing shall not be used

for Construction unless Signed

and Sealed For Construction

GHD STANDARD A1 SHEET CAD File No.: GHD_G_0045 Updated: 08-07-03 Version: 1.1

Check

Drafting

DateDrawnRevisionNo

Rev:

Drawing No:

Original Size

Title

Project

Client

Check

DesignerDrawn

Scale

Design

Note: * indicates signatures on original issue of drawing or last revision of drawing

Plot Date: Cad File No:30 June 2016 - 9:24 AM N:\US\San Francisco\Projects\1000299 Alameda Co RCD\8410577 ACRCD Stonybrook Crk Crossing\06-CAD\Sheets\8410577 Traffic Detour Sheet C-110.dwg

Ansi D

GHD Inc.

(Project Director)

Approved

Date

Job

Manager

Project

Director

Plotted by:

Susan Dove

Contract No.

Sht of

Reuse of Documents

This document and the ideas and designs incorporated

herein, as an instrument of professional service, is the

property of GHD Inc. and shall not be reused in whole or

in part for any other project without GHD Inc.'s written

authorization. © GHD Inc. 2012

Alameda County Resource Conservation District

Stonybrook Creek Crossings and Fish Passage Improvements

SAA

February 2015

100% PROJECT PLANS

8410577202/20/2015

Traffic Control Plan

C-110

SD TB

AS SHOWN

2

TRAFFIC CONTROL SHEET NOTES

TRAFFIC CONTROL PLAN

N

0 80'40'

1"=40'

1. ALL WORK ON THESE PLANS, AND ANY INTERMITTENT LANE CLOSURES REQUIRED TO

COMPLETE THE WORK, SHALL BE PERFORMED IN CONFORMANCE WITH THE LATEST

EDITION OF THE CALIFORNIA MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (CA

MUTCD), AND CALTRANS STANDARD PLANS AND SPECIFICATIONS. ANY LANE CLOSURES

SHALL BE CONSISTENT WITH THOSE ASSOCIATED WITH LOW SPEED ROADWAYS. ALL

TEMPORARY TRAFFIC CONTROL DEVICES SHALL BE MAINTAINED BY THE CONTRACTOR

AT ALL TIMES.

2. CONTRACTOR SHALL OBTAIN ALL TRAFFIC-RELATED PERMITS.

3. CONTRACTOR SHALL MAINTAIN A MINIMUM OF ONE LANE OF TRAFFIC THROUGH THE

PROJECT SITE WITHIN PALOMARES ROAD AND FOR INGRESS TO AND EGRESS FROM ALL

PRIVATE PROPERTIES ADJACENT TO THE PROJECT SITE AT ALL TIMES DURING THE

ENTIRETY OF THE CONSTRUCTION.

4. ALL TEMPORARY "NO PARKING" SIGNS MUST BE POSTED AT LEAST 72 HOURS IN

ADVANCE.

5. TEMPORARY AND PORTABLE TRAFFIC CONTROL SIGNALS SHALL BE AN OPTICON

CONTROLLER AND SHALL:

A. MEET THE PHYSICAL DISPLAY AND OPERATIONAL REQUIREMENTS OF A

CONVENTIONAL TRAFFIC CONTROL SIGNAL.

B. BE REMOVED WHEN NO LONGER NEEDED.

C. PROVIDE STREET LIGHTING CONSISTENT WITH THE APPLICABLE CALTRANS

STANDARD PLANS AND SPECIFICATIONS.

D. EACH TEMPORARY SIGNALS PLAN SHALL INCLUDE THE EQUIPMENT DETAILS.

E. SIGNAL FACES, DETECTORS AND CONTROL EQUIPMENT SHALL BE KEPT IN GOOD

OPERATING CONDITIONS AT ALL TIMES.

F. TIMING OF THE SIGNALS SHALL BE DETERMINED BY THE AGENCY HAVING

JURISDICTION.

G. THE ALL-RED CLEARANCE INTERVAL SHALL PERMIT A VEHICLE, INCLUDING BICYCLE,

TO TRAVEL THE LENGTH OF THE ONE-WAY LANE BEFORE A GREEN INDICATION IS

SHOWN TO OPPOSING TRAFFIC.

H. TEMPORARY SIGNAL EQUIPMENT SHALL BE POWERED BY GENERATOR.

I. CONTRACTOR SHALL PROVIDE FLAGGERS WITHIN TWO (2) HOURS OF NOTIFICATION

OF TEMPORARY TRAFFIC SYSTEM FAILURE AT ANY TIME OF ANY CALENDAR DAY.

FLAGGER PRESENCE SHALL BE MAINTAINED UNTIL REPAIR OF TEMPORARY

TRAFFIC SIGNAL IS ACHEIVED. REPAIR OF TEMPORARY TRAFFIC SIGNAL SYSTEM

AND ASSOCIATED FLAGGER OPERATION SHALL BE PERFORMED AT NO ADDITIONAL

COST TO THE COUNTY.

J. PRIOR TO IMPLEMENTATION, THE INSTALLATION AND OPERATION OF THE

TEMPORARY TRAFFIC SIGNAL SHALL BE INSPECTED AND APPROVED BY AN

INSPECTOR CERTIFIED BY THE ALAMEDA COUNTY PUBLIC WORKS AGENCY.

NILES CANYON RD AND PALOMARES RD

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1"=100'

PALOMARES RD AND PALO VERDE RD

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0 80'40'

1"=40'

2REVISED 6/24/2016

SEE SHEET G-002 FOR

TRAFFIC CONTROL

SEE SHEET G-002 FOR

TRAFFIC CONTROL

FIGURE 6H-8: ROAD CLOSURE WITH AN OFF-SITE DETOUR (TA-8)

PROVIDE STAGGERED TYPE III

BARRICADES WITH R11-3b SIGNS

1000 FEET AHEAD OF CLOSURE

(EACH SIDE OF BRIDGE)

6/30/2016