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P3 Purple Line

16.5 Mile Long Public-Private Partnership Project

C.C. Johnson & Malhotra, P.C. (CCJM) was an integral member of a large Design Team for a 16.5-mile-long Public-Private Partnership (P3) Purple Line Project. The east-west light rail system extends from New Carrollton in PG County, MD to Bethesda in MO County, MD with 21 stations and one short tunnel. CCJM was Engineer of Record (EOR) for the design of eight (8) Bridges and design reviews for 35 transit/highway bridges and over 100 retaining walls of different lengths/types adjacent to bridges and in areas of cut/fill. CCJM designed utility structures for 42,000 LF of relocated water mains and 19,000 LF of relocated sewer mains meeting Washington Suburban Sanitary Commission (WSSC), Md Dept of Transportation (MDOT) MTA, and Local Standards.

CCJM designed both permanent and temporary bridges with precast concrete, prestressed concrete, arch bridges, steel I-beam, and pre-engineered bridges of different span lengths, prepared design reports, plans, and specs following MDOT MTA Standards.

Project Cost: $5,600,000,000

mta project photo
mta project photo
mta project photo

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