US Bridges

N. Geo. Mason Dr. over Route I-66

Fair

Arlington County, Virginia · 00.03 10th ST/0.03N Faird · Structure no. 000000000000063

Built
1981
44 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
313 ft
3 main spans
Daily traffic
15,967
2020 count
Owner
State
State Highway Agency

About this bridge

N. Geo. Mason Dr. over Route I-66 is a steel continuous stringer/multi-beam or girder carrying N. Geo. Mason Dr. over Route I-66 in Arlington County, Virginia. It was built in 1981, so it is 44 years old, younger than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 15,967 vehicles a day, projected to reach 22,354 by 2040. The structure is 313 ft (95.4 m) long and 80 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesN. Geo. Mason Dr.
CrossesRoute I-66
Location00.03 10th ST/0.03N Faird
RouteCounty Highway 6710
CountyArlington County
StateVirginia
Coordinates38.88142, -77.12188
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating86.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length313 ft (95.4 m)
Longest span132 ft (40.2 m)
Deck width80 ft (24.4 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,967 (2020)
Projected traffic22,354 by 2040
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 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$464.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was N. Geo. Mason Dr. over Route I-66 built?

It was built in 1981, making it 44 years old in 2025.

What condition is N. Geo. Mason Dr. over Route I-66 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does N. Geo. Mason Dr. over Route I-66 carry?

About 15,967 vehicles per day (2020 count).

How long is N. Geo. Mason Dr. over Route I-66?

The structure is 313 ft (95.4 m) long with a longest span of 132 ft (40.2 m) and a deck 80 ft wide.

Who owns N. Geo. Mason Dr. over Route I-66?

It is owned by the State Highway Agency.