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Under Construction

I-395 over Four Mile Run

Bridge rehabilitation in Arlington County
Project at a Glance
Begin Date
June 2017

Est Completion Date
Late Fall 2018

$7.2 million

Martins Construction


Thomas Mulcahy, P.E., CCM

Yusaf Masud, P.E.

About the Project

This project is rehabilitating the I-395 bridge over Four Mile Run, located between the Shirlington interchange and Glebe Road. 

The bridge was built in 1970. 

The 2015 average daily traffic for I-395 was 204,000 vehicles.


Begin Construction - June 2017 
Final Completion - Late Fall 2018

Estimated Costs
Preliminary Engineering - $349,000
Construction - $6.9 million
Total - $7.2 million

Traffic Impacts

Bikers and pedestrians can expect closures of the Four Mile Run Trail when work is being done under the bridge in the area of the trail. During such work, one lane of the trail will be open during daytime hours, while full closures of the trail will occur during nighttime hours. Warning signs will be installed to notify pedestrians and bikers of these closures and a signed detour route will be provided at night during full trail closures.

Drivers can expect intermittent daytime single-lane closures during off-peak hours on I-395.

In addition, there will be nighttime multiple-lane closures on I-395.  These will include the closure of several I-395 on/off ramps in the area of the project at certain times.  When these ramps are closed, a signed detour route will be provided to direct traffic.

At least one lane of traffic will be open at all times on I-395.

Project Numbers

State: 0395-100-846, B688, B689
UPC: 108168

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Page last modified: Oct. 1, 2018