Precast Concrete Bases Pave the Way for Rapid EV Charger Development

Precon Products supplied precast concrete bases for EV charging stations at Greenlane's flagship EV charging site in Colton, California.

December 1, 2025

Dan Zarraonandia

A Greenlane EV charger being installed with EVEZ precast concrete. (Precon Products)

The rise of electric trucks in the U.S. is undeniable. Despite shifting federal regulations and sentiment, 13,000 electric trucks remain on the road in the U.S. today, and 17 states have devised an action plan to work toward 100% electric medium- to heavy-duty vehicle sales by 2050. A part of this action plan is California, a state that has enacted aggressive policies for EV fleet adoption over the past decade. However, with the increase in EV adoption comes heightened demand for EV chargers, challenging the current infrastructure of the United States.

Interstate 15, running from San Diego, California, to the Canadian border in Montana, is a major passage for trucks completing deliveries on the West Coast. The increasing number of electric trucks creates a growing need to implement more reliable public EV chargers along I-15, once a charging desert and major pain point for EV fleet operators in this part of the country.

In Q1 2024, Greenlane announced plans to build a 280-mile (450-km) corridor of commercial EV charging stations from Los Angeles to Las Vegas to alleviate charging challenges and to support the electrification of fleets in the U.S. Working against an ambitious timeline, Greenlane – a joint venture of Daimler Truck North America, BlackRock and NextEra Energy – enlisted various partners to get the job done in less than a year.

Precast manufacturing and engineering process

Contracted by Mortenson Construction, Precon Products supplied precast concrete bases for EV charging stations at Greenlane’s flagship EV charging site in Colton, California. Precon utilized its EVEZ technology, a patented system for precast concrete bases designed for EV charging stations. Engineered to provide reliable solutions across various EV charging projects, EVEZ is designed for universal compatibility, emphasizing cost-effectiveness, customization and ease of installation.

For the Colton project, Precon’s drafting team prepared plans and coordinated with external engineers to obtain necessary calculations and approvals. Close coordination was maintained with Mortenson’s project managers and designers to integrate the precast elements into the overall construction schedule. Through early procurement of molds and steel casting plates, Precon’s production team established a daily pouring schedule to align with Mortenson’s construction timeline. Quality control protocols verified bolt alignment and dimensional accuracy for each unit to minimize the need for onsite adjustments. Adherence to these protocols ensured the project met its designated timeline.

Site installation and integration

Installation of the 50 precast bases at the Colton site was completed in several days, eliminating the curing time typically associated with cast-in-place concrete applications. The site features 41 OEM-agnostic chargers and 12 pull-through lanes, including 400-kW CCS dual-port chargers, along with 29 bobtail lanes with 180-kW CCS chargers, offering comprehensive charging options for the increasingly electric freight route along I-15.

The bases feature a patented mounting plate system designed to allow for pedestal replacement without foundation demolition, simplifying future maintenance. These precast methods contributed to the project’s completion within an eight-month schedule. The site became operational in April 2025 and is the first of many Greenlane charging sites expected along I-15.

Dan Zarraonandia is vice president of Precon Products, manufacturer of EVEZ, and wrote this article for SAE Media.