SR 680 HOV Lane Completion and Express Lane Conversion

18016 – Contra Costa Transportation Authority – Interstate 680 HOV Completion and Express Lanes Project (# 8001), (Subcontractor to Bay Cities Paving & Grading, Inc.)

This project provides construction of a high occupancy vehicle (HOV) lane on southbound I-680 between North Main Street in Walnut Creek and Rudgear Road in Alamo and converts the HOV lane to an express lane on southbound I-680 from just south of Marina Vista Avenue in Martinez to Rudgear Road in Walnut Creek. The structures work includes a bridge widening, retaining walls, barrier slabs, sound walls, pre-stressed concrete and CIDH pilings.

San Quentin Village Sidewalk and Retaining Wall Project

San Quentin Village Sidewalk Project, Marin County, Contract #2014-05

This project consisted of building a new five-foot sidewalk along the entire length of the south side of Main Street in San Quentin Village. The work included two soldier pile retaining walls, concrete curb, gutter, sidewalk, catch basins, ADA curb ramps, retaining curbs, driveway approaches, chain link fence, pedestrian handrail, pavement grinding, asphalt widening, utility relocations, clearing and grubbing, pavement striping, new road signs, and shoulder backing. Extensive traffic control measures were required to facilitate the work on this busy street providing access to the San Quentin Prison.

Sutter Creek

Badger Street Bridge Replacement, City of Sutter Creek, Federal Project No. BRLO 5215 (012)

The City of Sutter Creek’s Badger Street Bridge Replacement is located in the heart of the City of Sutter Creek in Amador County. The project consisted of replacing the Badger Street Bridge above Sutter Creek with a raised profile structure and improved roadway approaches.

Minor channelization in the streambed was necessary to improve hydraulic capacity. The modifications included construction of concrete wingwalls, relocating cut banks and removing remnant rubble and lowering exposed high spots in the stream bedrock. Rip rap was placed on exposed slopes to protect the creek banks from erosion.

In addition to the bridge construction, the project also required bridge demolition, paving, sidewalk/curb/gutter construction, landscaping, storm drain systems, sanitary sewer replacement and installation, and environmental impact mitigations.

Foard Road at Anderson Creek Bridge Replacement Project

Foard Road at Anderson Creek Bridge Replacement Project, Lake County, Federal Project No. BRLO-5914 (068)

The Anderson Creek Bridge Replacement Project was built for Lake County and was located in Middletown, CA. The project on Foard Road required the bridge replacement on an existing alignment with approximately 350 feet of roadway reconstruction with paving over aggregate base. The project also included installation of a detour and temporary bridge. A temporary creek diversion and dewatering was required to build the bridge, along with utility relocations, temporary fills and metal beam guard rail work. The work, which took place during one of he wettest winters in recent history, was accelerated to ensure that we were able to complete the work in the creek by October 31st.

Dry Creek Road at Dry Creek Bridge Replacement Project

Dry Creek Road at Dry Creek Bridge Replacement Project, Lake County, Federal Project No. BRLO-5914 (080)

This project, built for Lake County, in Middletown, CA required the Dry Creek Road bridge replacement over Dry Creek on an existing alignment with approximately 250 feet of roadway reconstruction with aggregate base and lean concrete base. In order to gain access to the work a temporary water diversion and dewatering was required for Dry Creek. The bridge structure is a cast-in-place, post tensioned concrete slab bridge. A Value Engineering Change Proposal was implemented to modify the roadway construction and save costs for the stakeholders.

San Jose Trail: Thompson Creek Tully to Quimby

6325-Trail: Thompson Creek Tully to Quimby, City of San Jose

The Thompson Creek Trail project was built for the City of San Jose. It consisted of new construction of a pedestrian trail over 5000 ft long, including a new waterline 12” water line running the full length, over 500 ft of structural concrete retaining wall, asphalt concrete pedestrian trail pavement, bicycle lane striping, and amenities such as ADA ramps, park benches, and architectural hand railing. The linear nature and location of the project posed access and egress challenges that were overcome with thorough pre-planning and execution.

Rte 99 at Arch Road Retaining Walls

Stockton Retaining Walls, Caltrans #10-1C4214 (Subcontractor to Bay Cities Paving & Grading, Inc.)

The Stockton Retaining Walls project required ramp widenings, installing ramp metering, fiber optic cable and Retaining Walls for vehicle pull outs. We completed the construction of 500’ of retaining walls with barrier rail on Highway 99 for Caltrans. The retaining walls were a success and finished ahead of schedule.

Johnny Cash Trail Phase 2 Pedestrian Bridge

Johnny Cash Trail Phase 2, City of Folsom (Subcontractor to Westcon Construction)

The Johnny Cash Trail Phase 2 Project was comprised of a pedestrian trail extension for the City of Folsom, including a new timber arch bridge over a creek. We constructed the Structural Concrete Foundations for the Arch Bridge, including two Structural Concrete Abutments, Structural Concrete Pier and Pier Cap, and bike path Retaining Wall Structures all in excess of 25’ tall. Coordination with the prime contractor and the timber bridge subcontractor were key to the success of the project.

Newhall Park Pedestrian Bridge Replacement Project

Newhall Bridge Replacement, City of Concord, PW-5526

The project involved the removal of the existing steel pedestrian bridge and the installation of a new steel pedestrian bridge for the City of Concord in Newhall Park. The wood planking on the existing bridge was rotting and the steel was rusting away making the project a necessary improvement for the City of Concord. Contech Engineered Solutions provided the prefabricated bridge and we modified the abutments, and installed the bridge at its permanent location. The goal was to complete the removal and installation in one day. The work required extensive planning to ensure that the crew was prepared to complete the work in one day once the bridge arrived. The crew worked quickly and efficiently to meet of goal of completing the project in 1 day.

Jepson Parkway Road Widening Project

Jepson Parkway Road Widening Project, City of Vacaville (Subcontractor to Teichert Construction, Inc.) Federal Project No. RPSTL-5094 (064) and (67)

The Jepson Parkway-leisure Town Road Segment Project (Project) is part of the larger, multi-phased, Jepson Parkway corridor expansion project. This portion of the multi¬ phase project involved widening a 3-mile segment of Leisure Town Road from the intersection of Elmira Road to Vanden Road. Project components included a roundabout, associated landscape areas, pedestrian walkways, curbs, gutters, culvert replacements/extension, and bridge expansion.

As a Subcontractor to Teichert Construction our work included building The New Alamo Creek Bridge which required the demolition and replacement of the existing 2-lane bridge with a new four lane bridge. The replacement bridge is approximately 55 feet wider than the existing bridge; consisting of one concrete center footing and pier as well as concrete abutments at each bank. Our work also included headwall and wingwall construction of the Elmira Road box culvert.

In an effort to complete the project earlier than planned Teichert proposed combining the bridge construction to 1 season. In order to make it out of the water by the permit date, we knew we needed to save time during the erection process. In order to expedite the work, we used brackets for the falsework at the pier wall. We bolted the brackets to the pier wall instead of constructing falsework bents on either side of the wall. This provided a means for faster installation and removal of the falsework. This technique also provided a way for the falsework to remain in place should the construction of the bridge extend past the permit window. In addition to the use of the hangers, we accelerated the work by adding crews, and working longer shifts as well as weekends and holidays. The bridge construction was substantially completed by September 22nd.