US Bridges

Saint Clair Lane over Clarks Run

Fair

Loudoun County, Virginia · 00.65FR15/01.25TO662 · Structure no. 000000000011220

Built
1977
48 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
49 ft
4 main spans
Daily traffic
664
2014 count
Owner
State
State Highway Agency

About this bridge

Saint Clair Lane over Clarks Run is a concrete culvert carrying Saint Clair Lane over Clarks Run in Loudoun County, Virginia. It was built in 1977, so it is 48 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 664 vehicles a day, projected to reach 1,076 by 2045. The structure is 49 ft (14.9 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSaint Clair Lane
CrossesClarks Run
Location00.65FR15/01.25TO662
RouteCounty Highway 658
CountyLoudoun County
StateVirginia
Coordinates39.24333, -77.51974
Functional classRural Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length49 ft (14.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic664 (2014)
Projected traffic1,076 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$30 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Saint Clair Lane over Clarks Run built?

It was built in 1977, making it 48 years old in 2025.

What condition is Saint Clair Lane over Clarks 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 September 2023.

How much traffic does Saint Clair Lane over Clarks Run carry?

About 664 vehicles per day (2014 count).

How long is Saint Clair Lane over Clarks Run?

The structure is 49 ft (14.9 m) long with a longest span of 12 ft (3.7 m).

Who owns Saint Clair Lane over Clarks Run?

It is owned by the State Highway Agency.