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Transportation - Award of Merit: Intercounty Connector, Contract C

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Photo courtesy of Clark Construction
The Contract C project in Baltimore involved 3.8 miles of new six-lane roadway and 1.3 miles of U.S. 29 improvements.
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The $513.9-million Intercounty Connector (ICC), Contract C project in Maryland's Montgomery and Prince George's counties involved 3.8 miles of new six-lane roadway and 1.3 miles of improvements to U.S. Route 29.

Work included a three-level ICC interchange with Route 29 and 1.9 miles of auxiliary lane and collector-distributor lanes along Interstate-95, including a new three-level interchange at I-95. Twenty new bridges crossing U.S. 29, I-95 and local roads were built.

Bridges that cross sensitive environmental resources feature long-span placement to ensure that piers were not located in streams.

The team proposed wick-drain ground improvements through existing wash ponds, which eliminated the need for more bridges and saved $25 million. An alternative interchange design resulted in savings of $75 million.

Key Players

Contractors: ICC Constructors, Shirley, Clark, Facchina, & Trumbull Corp. Joint Venture, Lorton, Va.

Owner: Maryland State Highway Administration, Beltsville, Md.

Lead Design/Structural/Civil/MEP: Dewberry, Fairfax, Va.

Roadway, Bridge & Hydraulic Design: Whitney, Bailey, Cox & Magnani, Baltimore; Johnson Mirmiran and Thompson, Sparks, Md.

Submitted by Clark Construction Group

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