Vermont Corridor Project Using ESCS for Slabs on Metal Deck

by Charles Kerzic, Arcosa Lightweight

The Los Angeles County Department of Mental Health has partnered with the Trammell Crow Company to develop The Vermont Corridor project. The Vermont Corridor project includes the redevelopment of seven county-owned parcels within the city of Los Angeles and is located north of the Wilshire/Vermont subway station 2 miles west of downtown Los Angeles. This project is a 3-phase public-private development venture between TCC and Los Angeles County. The first phase of this project is a 21-story office building/parking structure. This will be the new headquarters of the L.A. County Department of Mental Health. The TCC/LACDMH has selected Gensler as the architect and Saiful Bouquet as the structural engineer for phase 1.

Phase 1 is approximately 468,000 square feet of offices seated above a 7- floor 1,900-stall parking structure with 10,000 square feet of ground floor commercial space. The tower will rise approximately 295 feet in height. The 13 floors of office space will be lightweight concrete on metal decking. The steel frame metal decking will require 7,000+ cubic yards of lightweight concrete that will require 4,500+ cubic yards of lightweight aggregate. The use of lightweight concrete helps reduce the foundation size. It also helps meet the 2-hour fire rating with significantly less concrete material and the potential need for fireproofing material. A large portion of the office walkways, hallways and open space will be polished/exposed concrete.

“The county employees deserved a better place to come to work to serve the residents of the county of Los Angeles,” said County Supervisor Mark Ridley-Thomas.

Owner: Los Angeles County Development Authority
Structural Engineer: Saiful Bouquet SE
Architect: Gensler
Developer: Trammell Crow Company/Los Angeles County Department of Mental Health
General Contractor: Hathaway/Dinwiddie
Concrete Contractor: Largo Concrete
Concrete Supplier: Catalina Pacific
Lightweight Aggregate Supplier: Arcosa Lightweight
Address: 510-523 S Vermont Ave Los Angeles CA
Completion Date Phase 1: 2021

Photo Gallery

  • Renderings by Gensler, courtesy of Trammell Crow Company