Public Hearing PROPOSED HIGHWAY IMPROVEMENTS I-95 DEFENSE ACCESS ROADS RAMPS TO THE ENGINEER PROVING GROUND Fort Belvoir, Virginia AUGUST 20, 2008

Regional Transportation Improvements

Growth and Travel Demand Change in Land Use and Travel Forecasts ( ) 0% 20% 40% 60% 80% 100% 120% 140% Population Employment Transit Trips Vehicle Trips Vehicle Miles Traveled Lane Miles Lane Miles of Congestion (Morning Rush Hour)

Base Alignment and Closure (BRAC)

Proposed I-95 DAR Ramps

Purpose and Need ■ Improve accessibility to the EPG site ■ Relieve traffic congestion in the area transportation network surrounding the site ■ Provide adequate capacity for the proposed 8,500 employees to access and exit the EPG site during the peak periods ■ Accommodate forecasted future growth in area traffic ■ Alleviate queues that result from the weaving sections between back-to-back ramps and minimize back-ups onto both I-95 and the Parkway ■ Improve operations at the I-95 / Fairfax County Parkway interchange and on the Parkway itself (which would serve as a primary entrance route to the EPG) ■ Improve accessibility to the EPG site ■ Relieve traffic congestion in the area transportation network surrounding the site ■ Provide adequate capacity for the proposed 8,500 employees to access and exit the EPG site during the peak periods ■ Accommodate forecasted future growth in area traffic ■ Alleviate queues that result from the weaving sections between back-to-back ramps and minimize back-ups onto both I-95 and the Parkway ■ Improve operations at the I-95 / Fairfax County Parkway interchange and on the Parkway itself (which would serve as a primary entrance route to the EPG)

Project Development Process

Environmental Considerations ■ Land Use ■ Socio-Economics ■ Air Quality ■ Noise Levels ■ Natural Resources ■ Aesthetics ■ Cultural Resources ■ Land Use ■ Socio-Economics ■ Air Quality ■ Noise Levels ■ Natural Resources ■ Aesthetics ■ Cultural Resources

Environmental Assessment

Summary of Impacts Resource / IssueImpactsRemarks Land UseNone Project is consistent with federal and local comprehensive plans. Displacements1 Business One commercial property will be affected and the business relocated in accordance with the Uniform Relocation Assistance and Real Property Acquisition Policy Act of Air QualityNone Project is not expected to interfere with attainment or maintenance of National Ambient Air Quality Standards. NoiseNone No sensitive noise receptors in the immediate vicinity of the project. Water Quality Minor impacts to ground water Crossing of Field Lark Branch Pollutant loads are expected to increase in proportion to additional impervious area. Runoff impacts will be minimized through vegetated slopes, stormwater management provisions and effective construction specifications. Field Lark Branch will be carried beneath the roadway in a culvert. The culvert will be countersunk below the stream bottom profile to enable reestablishment of a natural stream bottom inside the culvert. Wetlands and FloodplainsNone Proposed alignments avoid encroachment upon these natural resources. Threatened and Endangered Species None Single recorded occurrence of small-whorled pogonia is well within EPG and far removed from project. Hazardous MaterialsNone Issues related to two previous spill sites and unexploded ordinance will be resolved in accordance with federal and state regulations. Historic and Archeological Resources None No recorded historical properties or significant archeological sites in the immediate vicinity of project.

Project Development Process

Next Phases ■ Southbound I-95 Ramp - Start Design - Build Fall Complete Construction Winter 2010 / 2011 ■ HOV Bridge - Complete Design Summer Start Construction Winter 2009 / Complete Construction Fall 2011 ■ Southbound I-95 Ramp - Start Design - Build Fall Complete Construction Winter 2010 / 2011 ■ HOV Bridge - Complete Design Summer Start Construction Winter 2009 / Complete Construction Fall 2011

PROPOSED HIGHWAY IMPROVEMENTS I-95 DEFENSE ACCESS ROADS RAMPS TO THE ENGINEER PROVING GROUND Fort Belvoir, Virginia AUGUST 20, 2008 Conclusion