US Bridges

Gibson Mill Road over Mountain Run

Fair

Culpeper County, Virginia · 1.60 from 522 &.80 to 719 · Structure no. 000000000005658

Built
1982
43 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
1,133
2014 count
Owner
State
State Highway Agency

About this bridge

Gibson Mill Road over Mountain Run is a concrete slab carrying Gibson Mill Road over Mountain Run in Culpeper County, Virginia. It was built in 1982, so it is 43 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 1,133 vehicles a day, projected to reach 1,564 by 2045. The structure is 30 ft (9.1 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesGibson Mill Road
CrossesMountain Run
Location1.60 from 522 &.80 to 719
RouteCounty Highway 641
CountyCulpeper County
StateVirginia
Coordinates38.47801, -78.04877
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating75.9 US tons
Inventory rating59 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width33 ft (10.1 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,133 (2014)
Projected traffic1,564 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Gibson Mill Road over Mountain Run built?

It was built in 1982, making it 43 years old in 2025.

What condition is Gibson Mill Road over Mountain 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 February 2025.

How much traffic does Gibson Mill Road over Mountain Run carry?

About 1,133 vehicles per day (2014 count).

How long is Gibson Mill Road over Mountain Run?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 33 ft wide.

Who owns Gibson Mill Road over Mountain Run?

It is owned by the State Highway Agency.