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Spring Hill and Lewinsville Roads Intersection Improvement Study

News and Information

Community Meeting Held June 5; Comments due June 26, 2019

The Fairfax County Department of Transportation (FCDOT) held a community concerning the study background, status, and to seek feedback on the preferred alternative concepts for the intersection of Lewinsville Road and Spring Hill Road. The meeting was held on Wednesday, June 5, 2019, 7 p.m., in the cafeteria of Spring Hill Elementary School, 8201 Lewinsville Road, McLean. Major items presented included:

Study Description

As part of the Tysons Neighborhood Study, FCDOT has identified the need to improve the Spring Hill Road and Lewinsville Road signalized intersection. The intersection has a significant skew and experiences peak hour congestion, significant cut-through traffic, long queues, and has a documented crash history. To address these issues, the Spring Hill Road and Lewinsville Road Intersection Improvement Study was created. Currently, two preferred alternatives have been developed based on a comprehensive evaluation process of concept measures-of-effectiveness (MOEs) and community feedback, one of which will be selected as a final recommendation, with an additional third option for a no-build alternative.

Study Background

Spring Hill Road serves as a north-south connection to the Dulles Toll Road for the residential communities of McLean and Great Falls to the north and west of Tysons. The first signalized intersection with Spring Hill Road is with Lewinsville Road, located approximately one quarter of a mile north of the Dulles Toll Road. Lewinsville Road runs east-west to the north of the Dulles Toll Road and connects Leesburg Pike (Route 7) with Dolley Madison Boulevard (Route 123). Figure 1 provides an overview of the study area and location relative to the surrounding areas of Tysons and McLean.

Spring Hill Road and Lewinsville Road Intersection Study Map
Figure 1

The critical location of this intersection, the unique geometrics of a severely skewed intersection angle, and the proximity to Spring Hill Elementary School are contributing factors to the recurring congestion and significant queue spillbacks from the intersection. A previous study of this intersection completed as part of the Tysons Neighborhood Study looked at enhancements to the existing signalized intersection operations as well as several roundabout configurations.

FCDOT has initiated this study to perform preliminary engineering and conceptual design. At the current stage, the study has developed and evaluated four preliminary concepts (presented at the May 2018 public meeting) to improve intersection traffic operations and safety for all modes. The concepts were done at a planning level of analysis and show conceptual geometric layouts and roadway characteristics that convey potential right-of-way needs, anticipated utility impacts (based on available information), and bicycle/pedestrian connections. A preferred alternative of conventional improvements, based on an evaluation of the study measures-of-effectiveness (MOEs) and community feedback, was chosen from the four preliminary concepts has since been developed and evaluated using project MOEs.

Community feedback was collected at the public meeting held on June 5 and via an online survey through June 26, 2019.

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