US Bridges

NB-95; Hov & SB-95 over Lorton Road & Route 642

Fair

Fairfax County, Virginia · 3.12FR123 / 3.08TO617 · Structure no. 000000000006425

Built
1995
30 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
225 ft
2 main spans
Daily traffic
218,183
2022 count
Owner
State
State Highway Agency

About this bridge

NB-95; Hov & SB-95 over Lorton Road & Route 642 is a steel continuous stringer/multi-beam or girder carrying NB-95; Hov & SB-95 over Lorton Road & Route 642 in Fairfax County, Virginia. It was built in 1995, so it is 30 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 218,183 vehicles a day, roughly 1% of them trucks, projected to reach 243,274 by 2042. The structure is 225 ft (68.6 m) long and 209 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesNB-95; Hov & SB-95
CrossesLorton Road & Route 642
Location3.12FR123 / 3.08TO617
RouteInterstate 95
CountyFairfax County
StateVirginia
Coordinates38.70504, -77.22367
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.4 US tons
Inventory rating26 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length225 ft (68.6 m)
Longest span125 ft (38.2 m)
Deck width209 ft (63.7 m)
Roadway width177 ft (54 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic218,183 (2022)
Projected traffic243,274 by 2042
Trucks1%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

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$150 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was NB-95; Hov & SB-95 over Lorton Road & Route 642 built?

It was built in 1995, making it 30 years old in 2025.

What condition is NB-95; Hov & SB-95 over Lorton Road & Route 642 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 February 2024.

How much traffic does NB-95; Hov & SB-95 over Lorton Road & Route 642 carry?

About 218,183 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is NB-95; Hov & SB-95 over Lorton Road & Route 642?

The structure is 225 ft (68.6 m) long with a longest span of 125 ft (38.2 m) and a deck 209 ft wide.

Who owns NB-95; Hov & SB-95 over Lorton Road & Route 642?

It is owned by the State Highway Agency.