Antioch Station

The eBART Program extends the BART system 10 miles from a transfer platform just east of the Pittsburg/Bay Point station to new stations in Pittsburg and Antioch.  Since eBART opened to Antioch, ridership has exceeded expectations, making parking spaces in high demand. To accommodate the increased commuters, BART constructed a new parking lot with approximately 850 parking spaces at the Antioch Station.

The new parking lot was built on a vacant eight-and-a-half-acre lot adjacent to the existing parking lot at the Antioch station. Because it was a new parking lot on undeveloped land, the project required a wide range of improvements and disciplines to increase the station’s parking capacity including:

• Civil site work
• Grading and drainage
• Traffic control
• Stormwater management
• Clearing and grubbing
• Grading and drainage
• Stormwater collection and conveyance to retention facilities
• Subgrade stabilization with lime treatment
• Asphalt paving and striping
• Concrete work
• Landscaping
• Site lighting
• Closed caption television cameras
• Emergency phone stations

While the new parking structure was built, BART took the opportunity to make several improvements to the existing parking lot at the Antioch station to improve site accessibility, safety, and ADA access. Some of the enhancements included:

• Civil site work
• Traffic control
• Site demolition
• Pavement markings
• Bike locker relocation
• Relocating ADA and passenger pick-up/drop-off
• Constructing a dedicated travel lane for bus entry

Other safety and access enhancements were made Along Canal Road to improve BART and emergency personnel access to the transfer platform including removing the existing chain link gates, fences and post foundation and replacing them with:

• New chain link gates, fence, and post foundations
• Motorized gate openers including access pedestals/controllers and vehicle loop detection

Finally, improvements were made to the public streets surrounding the station. The project provided roadway improvements such as:

• Enhanced traffic control
• New pavement markings
• Pedestrian curb ramps
• Concrete bike ramps
• Asphalt paving
• New traffic signals and conduit
• Landscaping/irrigation and controls

eBART Maintenance Facility

Concurrent with the Antioch Station improvements, BART also made improvements to the eBART maintenance facility. The improvements were needed to provide additional capabilities at the facility and protect existing infrastructure. The project included three primary components. The first installed a prefabricated steel building and associated site work; the second constructed a steel canopy (Canopy A) to protect the train wash system, and the third constructed a canopy (Canopy B) to protect the above-ground fuel tanks.

The 60’ wide by 40’ long prefabricated building was produced by Rhino Steel Building Systems. Prior to installation, a new building pad and site improvements were completed including:

• Clearing and grubbing
• Grading
• Concrete building slab and paving
• Slurry seal
• Utility line extension and rearrangement
• Interior and exterior lighting
• Electrical and communication distribution
• Electrical panels and transformer installation

To complete the canopies over the train wash and fuel tanks, concrete footings were installed followed by canopy fabrication and installation.

Finally, improvements were made to the eBART Maintenance Facility Electrical Room and Existing Trailer Offices by providing electrical panel improvements, electrical and communications service distribution, communications equipment installation, and fiber installation.

Construction Management Services

Ghirardelli Associates, Inc. has continuously provided construction management services for the eBART Program since 2011. Our team provided extensive support including construction oversight, constructability reviews, coordination with designers, utilities, and local agencies, traffic detour support, highway construction coordination, and civil, structural, electrical, mechanical, and train control inspection.

Ghirardelli personnel also served as the District Representative to administer and monitor the contract. The team coordinated with outside Agencies and internal BART Departments conducted field inspection and were directly responsible for overall construction project management including construction permits, utilities, and traffic. Contract coordination between other contracts working within the same BART Operating System involved reviewing and responding to Contractor submittals, RFIs, and letters. The team also maintained an efficient filing system, strictly followed the Construction Manager’s QA Audit, maintained schedules and conduct weekly progress meetings, processed Change Orders and Change Notices, and prepared Engineering cost estimates.

Issues arose during the project, such as permit and schedule delays due to COVID-19, weather, and unforeseen conditions resulting in plan revisions and design modifications. Ghirardelli responded with heavy coordination between stakeholders and the contractor and a solutions-based approach in order to keep the project moving forward.