Bradley CAPM Project

Project Description

The project includes the following elements:

Structures

• Replace the northbound San Antonio River Bridge (Bridge Number 44-0141R) at post mile R6.66. Two build alternatives are under consideration for the bridge replacement method.
• • Alternative 1: Alternative 1 would replace the existing bridge using the precast concrete construction method. This alternative is expected to require 455 working days.
  • Alternative 2: Alternative 2 would replace the existing bridge using the cast-in-place concrete construction method. This alternative is expected to require 636 working days.
• Replacing the northbound San Antonio River Bridge would require an approximately 500-foot-long retaining wall on the right side of the bridge, on the outside shoulder.
• Replace the southbound North Bradley Undercrossing Bridge (Bridge Number 44-0142L) at post mile R7.94.
• • The southbound North Bradley Undercrossing Bridge would be replaced with a precast/prestressed concrete box beam-type superstructure that is 3 feet wide and 6 inches deep.

Roadway Rehabilitation

• Perform capital preventive maintenance by cold planing and overlaying the lanes and inside and outside shoulders with 0.20 foot of rubberized asphalt concrete. The project would also include roadway improvements, such as replacing pavement markings and rumble strips and widening the shoulders a short distance before and after the northbound San Antonio River Bridge.
• Install a Type 2 slurry seal at the parking lots of both northbound and southbound Camp Roberts Safety Roadside Rest Areas.

Guardrails and Barriers

• Remove existing guardrails and install Midwest Guardrail System features.

Transportation Management System and Signs

• Install five traffic census stations at post miles R2.15, R3.21, R4.77, R7.94, and R9.55. The project would replace one existing traffic census station at post mile R4.85.
• Replace and upgrade all sign panels that are not currently Type 11 backing material within the project limits. Replace worn-out signposts as needed. Twenty-five one-post signs and 15 two-post signs are planned for replacement.

Drainage Improvements

• Replace four culverts and repair one. The replacement method is expected to be open cut for three of the four culvert replacements, but the jack and bore method would be needed for the fourth one at post mile R7.78.

Construction Activities

During the final project design phase, geotechnical boring investigations will be completed to gather the data necessary for project design decisions. Six borings are expected to be necessary within the San Antonio River floodplain before construction starts. In addition, positive utility location potholing will be completed to positively identify the location of utilities before construction starts.

The total number of working days for the construction of the northbound San Antonio River Bridge will vary based on the alternative chosen, but it is estimated to be either 455 or 636 working days. Temporary construction activities include pavement rehabilitation, culvert replacement, bridge replacement, traffic controls (including a bicycle detour), equipment access, vegetation clearing, staging, and stockpiling. Utility relocations are not expected. Temporary dewatering and diversion will be required in the San Antonio River to allow bridge replacement work to be completed.

 

 

 

Project Benefits

Purpose

The purpose of this project is to comprehensively address the structural deficiencies and extend the service life of the roadway within the project limits, restore drainage systems, and add traffic census stations. The proposed goals of the project include the following:

• Improve the condition of the structurally deficient bridges.
• Improve the ride quality and extend the service life of the pavement by rehabilitating the worn-out pavement.
• Restore failing culverts.
• Improve traffic census station data collection and maintain an efficient Intelligent Transportation System.
• Upgrade metal beam guardrails to current design standards.
• Replace sign panels to improve visibility and to meet current Federal Highway Administration standards.
• Update signposts to prevent post failure.

Need

This project is needed for the following reasons:

• The Bridge Strategy Meeting Fact Sheet and the Bridge Inspection Reports for the project recommend that the bridges be replaced or repaired due to the occurrence of delamination in the concrete bridge elements, which have been affected by alkali-silica reactivity and chlorides.
• Based on the project's Pavement Condition Report, the pavement within the project limits is exhibiting distress and degraded ride quality. Minor rehabilitation of the pavement in the form of repair and overlay is needed because, if left uncorrected, the pavement will continue to deteriorate, leading to more costly reconstruction.
• Culvert inspections show that several culverts within the project limits are in fair and poor condition and need to be replaced or repaired. Failure to act on this could lead to embankment or pavement failure.
• Traffic census station improvements are needed to collect reliable traffic volume data. Traffic census stations are proposed to reduce worker exposure to high-speed traffic by eliminating the need to place pneumatic hoses within the ramp lanes.
• Caltrans has adopted the new Manual for Assessing Safety Hardware crash testing criteria as the new roadside safety hardware standard. Because of this change, the existing metal beam guardrails needs to be upgraded to the new standard.
• Many existing sign panels within the project limits do not meet current Federal Highway Administration retro-reflectivity standards. Many signposts are worn out and will soon reach the end of their service life.

 

Estimated Funding Breakdown

 

Proposed Project Schedule

 

Project Contact

Mark Leichtfuss, Project Manager
Phone: 805-441-0125
Email: mark.leichtfuss@dot.ca.gov

Dianna Beck, Senior Environmental Scientist
Phone: 805-459-9406
Email: dianna.beck@dot.ca.gov

District 5 Public Information Office
Phone: 805-549-3237
Email: info-d5@dot.ca.gov

 

Documents

Accessibility Assistance: Caltrans makes every attempt to ensure our documents are accessible. Due to variances between assistive technologies, there may be portions of this document which are not accessible. Where documents cannot be made accessible, we are committed to providing alternative access to the content. Should you need additional assistance, please contact us at (916) 654-2852 or visit https://dot.ca.gov/request-ada-compliant-documents.

• Coming soon!

 

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.

Title VI Brochures

Title VI brochures in various languages