Section Design Consultant: KCI Technologies

The MD 210 Interchange project involved the complete reconstruction of the existing interchange beginning west of the existing Bald Eagle Road bridge and extending east 1.2 miles to near Livingston Road. Ramps at MD 210 were reconstructed in the northwest, northeast, and southeast quadrants, providing access between the local lanes and MD 210/Oxon Hill Road. In addition, reconstruction of the MD 210 Interchange included a grade separated new interchange at MD 210/Oxon Hill Road, including loop ramps in the southeast and southwest quadrants of this intersection. Bald Eagle Road over the Beltway was reconstructed to provide pedestrian/bicyclists and vehicular access to Oxon Hill children's farm. Approximate quantities of specific construction elements for this interchange include the following:

• Fourteen lane miles of new mainline pavement for the Beltway and 10 lane miles of pavement for interchange ramps (total pavement area 141,000 square yards)
• Nine new bridges encompassing nearly 200,000 square feet of bridge deck
• 252,000 square feet of retaining walls with 136,000 square yards of sound barriers

Critical environmental issues at the MD 210 Interchange include the Flintstone Elementary School and residences located in the northeast quadrant, Oxon Hill Farm/Butler House and residences in the northwest quadrant, and the Forest Heights Baptist Church located in the southeast quadrant. Three occupied residences and one unoccupied residence were displaced in the northeast quadrant; Maryland State Highway Administration's salt dome in the southwest quadrant was also displaced by the reconstruction of the MD 210 Interchange. There also were major utility impacts affiliated with the efforts at the Interchange.