Intercounty Connector (ICC)

Montgomery County/Prince George’s County

The Intercounty Connector (ICC) is an 18 mile design-build multi-modal highway connecting I-270 and US 1 in Montgomery and Prince George’s counties. (Maryland State Highway Administration)

During project planning, the Wilson T. Ballard Company served as co-General Engineering Consultant (GEC) taking a corridor-wide lead on right of way, utilities, H&H, air & noise analysis and the development of alignment options. We attended public outreach meetings, coordinated avoidance and mitigation options with the NEPA team, and developed cost estimates for the alternatives and assisted SHA and FHWA in the mega-project cost estimate review.

As a major subconsultant to the GEC Joint Venture throughout the procurement and construction phases of the project, our team continued a corridor-wide lead in right of way, utilities, air and noise analysis. Our staff served as overall design compliance oversight management for Contracts B and D/E Modified, and provided design compliance oversight for roadway and drainage design under Contract B. We provided an Independent Environmental Monitor (IEM) to oversee mitigation projects within the Northwest Branch. Staff assisted in the management and design of several environmental stewardship and compensatory mitigation projects.

Our team was also instrumental in the development of design criteria related to stormwater treatment in the Montgomery County Special Protection Areas for the Paint Branch and Gum Springs tributaries, and design performance specifications for the ICC / MD 650 single point urban interchange (SPUI) and the ICC / US 1 continuous flow intersection (CFI).

Throughout design and construction, ICC and the GEC won numerous awards including most recently the Engineering Society of Baltimore’s 2015 Project of the Year Award.

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