The District of Columbia Department Transportation (DDOT) conducted a study evaluating the potential impacts of proposed redevelopment at Waterside Mall. The study area is located in Southwest Washington, DC, and includes 3rd, 4th, 6th, 7th, G, I and M Streets surrounding Waterside Mall.

The Study Team examined existing conditions and evaluated the following scenarios for future conditions for the years 2010 and 2022:

• Total background scenario with other area developments and without new development at Waterside Mall.
• With Planned Unit Development (PUD) level of development at Waterside Mall and without a vehicular connection along 4th Street between I and M Streets.
• With PUD Level of development at Waterside Mall and with a vehicular connection along 4th Street between I and M Streets.
• With PUD level of development at Waterside Mall and with a vehicular connection along the eastern and western Waterside Mall service roads between I and M Streets.

Because of improved levels of service, reduced delay and queue lengths, and reduced traffic on local residential streets, the Study Team recommends that 4th Street be connected between I and M Streets and that this connection be made available to vehicles. The Final Report summarizes recommended mitigation measures for existing and future conditions. The Final Report includes substantial changes made in response to citizen comments at a series of public meetings, including the addition of several proposed developments and the analysis of several additional transportation scenarios.