US Bridges

Clarkes Gap RD over Br.Of Catoctin Creek

Fair

Loudoun County, Virginia · 0.10FR704 0.15TO665 · Structure no. 000000000011225

Built
1969
56 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
35 ft
3 main spans
Daily traffic
4,648
2020 count
Owner
State
State Highway Agency

About this bridge

Clarkes Gap RD over Br.Of Catoctin Creek is a concrete culvert carrying Clarkes Gap RD over Br.Of Catoctin Creek in Loudoun County, Virginia. It was built in 1969, so it is 56 years old, older 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 4,648 vehicles a day, roughly 1% of them trucks, projected to reach 5,890 by 2040. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesClarkes Gap RD
CrossesBr.Of Catoctin Creek
Location0.10FR704 0.15TO665
RouteCounty Highway 662
CountyLoudoun County
StateVirginia
Coordinates39.18059, -77.61223
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71 US tons
Inventory rating42 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,648 (2020)
Projected traffic5,890 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$125 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Clarkes Gap RD over Br.Of Catoctin Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is Clarkes Gap RD over Br.Of Catoctin Creek 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 Clarkes Gap RD over Br.Of Catoctin Creek carry?

About 4,648 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Clarkes Gap RD over Br.Of Catoctin Creek?

The structure is 35 ft (10.7 m) long with a longest span of 11 ft (3.4 m).

Who owns Clarkes Gap RD over Br.Of Catoctin Creek?

It is owned by the State Highway Agency.