US Bridges

James Monroe SB over Dry Run

Fair

Loudoun County, Virginia · 00.14FR644/00.70TO837 · Structure no. 000000000011094

Built
1957
68 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
3,547
2014 count
Owner
State
State Highway Agency

About this bridge

James Monroe SB over Dry Run is a concrete culvert carrying James Monroe SB over Dry Run in Loudoun County, Virginia. It was built in 1957, so it is 68 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 5 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 3,547 vehicles a day, projected to reach 19,600 by 2042. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesJames Monroe SB
CrossesDry Run
Location00.14FR644/00.70TO837
RouteU.S. Route 15
CountyLoudoun County
StateVirginia
Coordinates39.13749, -77.54849
Functional classUrban 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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating78 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 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 traffic3,547 (2014)
Projected traffic19,600 by 2042
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
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$100 million
NavigationNo navigation control on waterway

Frequently asked questions

When was James Monroe SB over Dry Run built?

It was built in 1957, making it 68 years old in 2025.

What condition is James Monroe SB over Dry 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 July 2024.

How much traffic does James Monroe SB over Dry Run carry?

About 3,547 vehicles per day (2014 count).

How long is James Monroe SB over Dry Run?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns James Monroe SB over Dry Run?

It is owned by the State Highway Agency.