S Dinwiddie Street and 22nd St S Intersection NCS

Commission Meeting

The Neighborhood Complete Streets Commission will consider this project for funding at their May 12 Funding Hearing.

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Status

Preliminary Proposal

Project Location

The intersection of South Dinwiddie Street and 22nd Street South in the Claremont neighborhood.

Status

Preliminary Proposal

The Neighborhood Complete Streets Commission has selected the intersection of South Dinwiddie Street and 22^nd Street South for preliminary project scoping, design, and public engagement.

About the Project

Intersection improvement project to include new curb extensions, curb ramps, and pedestrian markings with a reduced pedestrian crossing distance across 22^nd Street South.

Project Goals

Improve the curb ramps and reduce the distance of the pedestrian crossing at the southern half of this “T” intersection.
Improve visibility and awareness of this intersection for people walking, biking, driving, and taking transit.

Any proposed design elements, including any potential narrowing of the roadway, will depend on the movement of school and transit bus vehicles that travel across this corridor.

All proposed design elements must comply with county standards, specifications and engineering best practices.

Project Background

The Neighborhood Complete Streets program has received multiple nominations to address different segments of South Dinwiddie Street between South Walter Reed Drive and South George Mason Drive. For purposes of analysis within the Neighborhood Complete Streets Program, these nominations have been combined into a single corridor in the scoring and ranking process.

South Dinwiddie Street was evaluated using the Project Ranking Guidelines. It scored highly and was recommended for concept design and public engagement by the Neighborhood Complete Streets Commission.

Nearby Projects

Vision Zero School Slow Zone

South Dinwiddie between Chesterfield Road and South George Mason Drive is part of the Vision Zero School Slow Zone for Claremont Elementary and Wakefield High School. In fall 2021, the area was a pilot, which was formalized in 2024 as a permanent reduction in speed from 25mph to 20mph.

As the Vision Zero interventions focused on South Dinwiddie Street between Chesterfield Road and South George Mason, including installation of tactical speed humps, NCS efforts focused analysis on the segment of South Dinwiddie Street between Chesterfield Road and South Walter Reed Drive.

Intersection Improvements

The intersections at 23^rd, 24^th, and 25^th Streets South have had previous treatments to decrease lane widths, apply pavement markings and reduce turning radii while still enabling buses to travel.

The intersection at 22^nd Street South remains wide and unmarked. This project will focus on making capital improvements to make the intersection of South Dinwiddie and 22^nd Street South more accessible, comfortable and safe for people walking, biking, driving and taking transit along South Dinwiddie Street.

Planning Guidance

Master Transportation Plan

Streets Element: The Complete Street policy informs the scope of this project to improve safety for all road users.

Vision Zero

Vision Zero policies call on County staff and the Arlington community to take a proactive approach to safety in order to eliminate severe and fatal crashes from our transportation network by 2030.
School Slow Zone (SSZ): This road is part of the Wakefield/Claremont School Slow Zone. While this specific intersection is not located within the SSZ, it is a part of the network that leads to the SSZ on both South Dinwiddie Street and Chesterfield Road, which begins at the traffic circle.

Neighborhood Complete Streets

The Neighborhood Complete Streets (NCS) program was established by the Arlington County Board in January 2016 to address safety and access problems on local (non-arterial) streets through physical improvement projects.
The Neighborhood Complete Streets Commission was chartered to advise the County Board on the NCS program and make recommendations for projects to fund.
This project has arisen following the guidelines of the program, with the oversight of the Neighborhood Complete Streets Commission.

About the Process

Fall 2019 - Project Nomination

South Dinwiddie Street was first nominated for NCS consideration in 2019, the first year the program published a list of the nominated streets. The street rises in the rankings.

Winter 2025 - Project Selection

At their February meeting, the Neighborhood Complete Streets Commission recommended staff pursue an intersection improvement project at the South Dinwiddie Street and 22^nd Street South, advancing a concept into engagement with stakeholders and the public.

Spring 2025 - Concept Design Engagement

Level of Engagement: Involve

Learn what we heard during Existing Conditions Feedback and how it helped inform the concept design
Review and share comments on concepts

Input gathered will help evaluate and refine development of a final concept.

Materials

Spring/Summer 2025 - Funding Hearing and Final Concept Design

Level of engagement: Communicate

Community-informed final designs will be shared with the public
The Neighborhood Complete Streets Commission will consider these projects for recommendation to the County Board at their May 12, 2025 Funding Hearing

Meeting Materials

Funding Booklet

Funding

Projects selected for implementation by the Neighborhood Complete Streets program are recommended for approval by the Neighborhood Complete Streets Commission at a public Funding Hearing, and subsequently approved by the Arlington County Board. Neighborhood Complete Streets projects are funded by the Capital Improvement Plan.