US Bridges

Lee-Jack.Mem.Hwy. over Flatlick Branch

Fair

Fairfax County, Virginia · 00.37FR645/00.73TO657 · Structure no. 000000000025214

Built
1998
27 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
75 ft
1 main span
Daily traffic
31,439
2022 count
Owner
State
State Highway Agency

About this bridge

Lee-Jack.Mem.Hwy. over Flatlick Branch is a steel stringer/multi-beam or girder carrying Lee-Jack.Mem.Hwy. over Flatlick Branch in Fairfax County, Virginia. It was built in 1998, so it is 27 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 31,439 vehicles a day, roughly 1% of them trucks, projected to reach 45,902 by 2045. The structure is 75 ft (22.9 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesLee-Jack.Mem.Hwy.
CrossesFlatlick Branch
Location00.37FR645/00.73TO657
RouteU.S. Route 50
CountyFairfax County
StateVirginia
Coordinates38.88969, -77.4195
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.3 US tons
Inventory rating71.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span75 ft (22.9 m)
Deck width60 ft (18.3 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,439 (2022)
Projected traffic45,902 by 2045
Trucks1%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Lee-Jack.Mem.Hwy. over Flatlick Branch built?

It was built in 1998, making it 27 years old in 2025.

What condition is Lee-Jack.Mem.Hwy. over Flatlick Branch 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 April 2023.

How much traffic does Lee-Jack.Mem.Hwy. over Flatlick Branch carry?

About 31,439 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Lee-Jack.Mem.Hwy. over Flatlick Branch?

The structure is 75 ft (22.9 m) long with a longest span of 75 ft (22.9 m) and a deck 60 ft wide.

Who owns Lee-Jack.Mem.Hwy. over Flatlick Branch?

It is owned by the State Highway Agency.