US Bridges

Idylwood Road over Dar Ext & Metro

Good

Fairfax County, Virginia · 00.10FR.3958/00.20TO694 · Structure no. 000000000006863

Built
1983
42 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
232 ft
2 main spans
Daily traffic
8,545
2022 count
Owner
State
State Highway Agency

About this bridge

Idylwood Road over Dar Ext & Metro is a concrete continuous box beam or girders - multiple carrying Idylwood Road over Dar Ext & Metro in Fairfax County, Virginia. It was built in 1983, so it is 42 years old, younger than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,545 vehicles a day, roughly 1% of them trucks, projected to reach 10,353 by 2045. The structure is 232 ft (70.7 m) long and 57 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesIdylwood Road
CrossesDar Ext & Metro
Location00.10FR.3958/00.20TO694
RouteCounty Highway 695
CountyFairfax County
StateVirginia
Coordinates38.90935, -77.18743
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.2 US tons
Inventory rating34.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length232 ft (70.7 m)
Longest span116 ft (35.4 m)
Deck width57 ft (17.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,545 (2022)
Projected traffic10,353 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$200 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Idylwood Road over Dar Ext & Metro built?

It was built in 1983, making it 42 years old in 2025.

What condition is Idylwood Road over Dar Ext & Metro in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does Idylwood Road over Dar Ext & Metro carry?

About 8,545 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Idylwood Road over Dar Ext & Metro?

The structure is 232 ft (70.7 m) long with a longest span of 116 ft (35.4 m) and a deck 57 ft wide.

Who owns Idylwood Road over Dar Ext & Metro?

It is owned by the State Highway Agency.