Harry W. Nice/Thomas “Mac” Middleton Bridge Replacement

Environmental Enhancements and Protection in Sensitive Areas

Charles County, MD and King George County, VA

Client

MDOT Maryland Transportation Authority

Team

AECOM, Wallace Montgomery, and Skanska-Corman-McLean

Cost

$463 million

Services

Landscape Architecture, Forest Conservation/Permitting, Critical Area Mitigation Planting Design, Green Infrastructure Planting Design, Invasive Species Management, and Construction Administration/Inspections

This project includes design and construction of a new US 301 bridge to replace the Governor Harry W. Nice Memorial/Senator Thomas “Mac” Middleton Bridge over the Potomac River as well as approach roadways and stormwater management. The project will improve mobility, safety and economic opportunities for southern Maryland, northeastern Virginia and the region.

Planting Approach


Floura Teeter is the Landscape Architect and Arborist for the project responsible for planting design for approach roadways and associated improvements on both the Virginia and Maryland sides of the new bridge spanning the Potomac River. Services include analysis of forest impacts, recommendations for avoidance and minimization techniques to preserve forest resources, and planting design for new plant communities to reclaim disturbed areas of the site located within Maryland’s critical area and Dahlgren Wayside Park in Virginia.


Proposed plantings within the critical area include only species native to the Maryland Coastal Region. Planting design is sensitive to several functional factors including stabilizing areas within environmentally sensitive areas and the 100-year floodplain to minimize soil erosion and creating habitat to support pollinators and wildlife, while satisfying mitigation requirements for permanent disturbance within the critical area and expanded buffer.
An outline of establishment and maintenance procedures for a two-year period are incorporated into plans and specifications to assist the contractor in achieving plant survivability.

Awards

2023 DBIA National Merit Award

Project Team