US Bridges

Ramp Ok-E of 644 over RTE.644 Old Keene Mill

Good

Fairfax County, Virginia · 00.42FR644/00.15TO95NB · Structure no. 000000000025852

Built
2000
25 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
171 ft
2 main spans
Daily traffic
3,441
2022 count
Owner
State
State Highway Agency

About this bridge

Ramp Ok-E of 644 over RTE.644 Old Keene Mill is a prestressed concrete continuous stringer/multi-beam or girder carrying Ramp Ok-E of 644 over RTE.644 Old Keene Mill in Fairfax County, Virginia. It was built in 2000, so it is 25 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 3,441 vehicles a day, roughly 2% of them trucks, projected to reach 5,025 by 2045. The structure is 171 ft (52.1 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRamp Ok-E of 644
CrossesRTE.644 Old Keene Mill
Location00.42FR644/00.15TO95NB
RouteInterstate 644
CountyFairfax County
StateVirginia
Coordinates38.77832, -77.18001
Functional classUrban Principal Arterial - Interstate

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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating56.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length171 ft (52.1 m)
Longest span86 ft (26.2 m)
Deck width33 ft (10 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,441 (2022)
Projected traffic5,025 by 2045
Trucks2%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$330 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp Ok-E of 644 over RTE.644 Old Keene Mill built?

It was built in 2000, making it 25 years old in 2025.

What condition is Ramp Ok-E of 644 over RTE.644 Old Keene Mill 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 April 2023.

How much traffic does Ramp Ok-E of 644 over RTE.644 Old Keene Mill carry?

About 3,441 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Ramp Ok-E of 644 over RTE.644 Old Keene Mill?

The structure is 171 ft (52.1 m) long with a longest span of 86 ft (26.2 m) and a deck 33 ft wide.

Who owns Ramp Ok-E of 644 over RTE.644 Old Keene Mill?

It is owned by the State Highway Agency.