US Bridges

Lee Highway; Rt 29 over Tripps Run

Fair

Fairfax County, Virginia · 1.10 FR 705 0.20 to 338 · Structure no. 000000000030147

Built
1980
45 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
19,382
2022 count
Owner
State
State Highway Agency

About this bridge

Lee Highway; Rt 29 over Tripps Run is a concrete culvert carrying Lee Highway; Rt 29 over Tripps Run in Fairfax County, Virginia. It was built in 1980, so it is 45 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 19,382 vehicles a day, projected to reach 21,611 by 2042. The structure is 23 ft (7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesLee Highway; Rt 29
CrossesTripps Run
Location1.10 FR 705 0.20 to 338
RouteU.S. Route 29
CountyFairfax County
StateVirginia
Coordinates38.87928, -77.17825
Functional classUrban Other Principal 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating77.1 US tons
Inventory rating46 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,382 (2022)
Projected traffic21,611 by 2042
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$2.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Lee Highway; Rt 29 over Tripps Run built?

It was built in 1980, making it 45 years old in 2025.

What condition is Lee Highway; Rt 29 over Tripps Run 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 January 2024.

How much traffic does Lee Highway; Rt 29 over Tripps Run carry?

About 19,382 vehicles per day (2022 count).

How long is Lee Highway; Rt 29 over Tripps Run?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns Lee Highway; Rt 29 over Tripps Run?

It is owned by the State Highway Agency.