Mountain Counties Bridge Rails
Project Description
Mountain Counties Bridge Rails- Addendum to the Categorical Exclusion/Initial Study with Proposed Mitigated Negative Declaration.
Amended previous final environment document to reflect change in scope, from upgrading bridge rails at four locations, to upgrading bridge rails at two locations: West Fork Carson River Bridge Number 31-0022 and Silver Creek Bridge Number 31-0011, replace the Markleeville Bridge Number 31-0002, and close off the West Fork Carson River Bridge Number 31-0005 to vehicle traffic.
Project Benefits
Purpose: To bring bridge rails up to current standard.
Need: To bring bridge railing into compliance with current standards of The Office of Structures Maintenance and Investigations.
Estimated Funding Breakdown
Local: N/A
State: $898,000
Federal: $6,932,000
Construction Cost: $7,830,000
This project is funded in part by Senate Bill 1 (SB 1), the Road Repair and Accountability Act of 2017.
Partnerships
Alpine County
Proposed Project Schedule
Final Environmental document to be completed: 1/15/19
Right of way acquisition to be completed: 4/3/20
Design to be completed: 6/22/20
Advertise:1/5/21
Construction to begin: 6/28/21
Construction to be completed: 7/20/23
Project suspended until spring 2022 due to the Tamarack Fire and winter season closure.
Work will be conducted as follows:
Location 1: State Route 88, West Fork Carson River
- At the top of Woodfords Canyon in a section of Route 88 that is bicycle accessible.
- Existing bridge rail will be replaced, then existing asphalt concrete will be removed from the bridge deck and polyester concrete will be installed, tying into the highway at both ends.
- One-way traffic control is planned, and motorists should expect 10-minute delays.
Location 2: State Route 88, West Fork Carson River
- About a mile east of Location 1 in Shingle Mill Flats on an unnamed local road off Route 88 that ends after approximately 930 feet, this bridge provides access to a local fishing and recreational area and will only be open to pedestrians.
- No traffic impact is anticipated as this bridge is off the alignment of Route 88.
- Both West Fork Carson River Bridge locations are between Picketts Junction and Woodfords.
Location 3: State Route 89, Markleeville Creek
- This bridge on a key route connecting Route 4 and Route 88 in Markleeville will be replaced with a new, wider bridge to meet 8-foot shoulder standards and allow pedestrians and bicyclists to safely cross.
- Riprap as scour mitigation will be installed along the northern bridge abutment.
- Both north and south bridge abutments are within the active creek channel. In-water work will be conducted during the in-water work window (June 1 to October 15).
- Drainage culverts will be replaced.
- One-lane traffic control will be employed during construction.
- One side of the bridge will be removed and reconstructed during the first stage, while the opposite side of the bridge will be removed and reconstructed during the second stage. Temporary traffic signals will be installed.
Location 4: State Route 4, Silver Creek
- Much of this section of Route 4 between Route 89 and Ebbetts Pass is bicycle accessible.
- Existing bridge rail will be replaced, then existing asphalt concrete will be removed from the bridge deck and polyester concrete will be installed, tying into the highway at both ends.
- One-way traffic control is planned, and motorists should expect 10-minute delays.
The project was awarded to Bridgeway Civil Constructors of Vacaville, CA.
Construction is scheduled to begin as listed, but is subject to change due to traffic incidents, weather, availability of equipment, and/or materials and construction related issues.
Project Contact Information
District 10
Public Information Office: (209) 948-7977
Email: district10publicaffairs@dot.ca.gov
For more information and updates on additional projects, visit dot.ca.gov/d10/projects or on Twitter via @CaltransDist10.
Documents
Addendum - March 2020 (PDF) 1,404KB
Title VI Information
The California Department of Transportation (Caltrans) assures that no person shall, on the basis of race, color, or national origin, be excluded from participation in, be denied the benefits of, or be otherwise subjected to discrimination under any program or activity receiving Federal financial assistance, as required by Title VI of the Civil Rights Act of 1964, as amended, the Civil Rights Restoration Act of 1987, and Federal Executive Order 12898 (Federal Actions to Address Environmental Justice in Minority Populations and Low-Income Populations).
Caltrans will make every effort to ensure nondiscrimination in all of its programs and activities, whether they are federally funded or not, and that services and benefits are fairly distributed to all people, regardless of race, color, or national origin. In addition, Caltrans will facilitate meaningful participation in the transportation planning process in a nondiscriminatory manner.