US Bridges

Big Hill Road over Kerrs Creek

Fair

Rockbridge County, Virginia · 1.50 to 636 & 0.00 to 850 · Structure no. 000000000015534

Built
1928
97 years old, rebuilt 1984
Condition
Fair
inspected December 2023
Type
Slab
Concrete
Length
37 ft
1 main span
Daily traffic
331
2022 count
Owner
State
State Highway Agency

About this bridge

Big Hill Road over Kerrs Creek is a concrete slab carrying Big Hill Road over Kerrs Creek in Rockbridge County, Virginia. It was built in 1928 and reconstructed in 1984, so it is 97 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 331 vehicles a day, projected to reach 369 by 2042. The structure is 37 ft (11.3 m) long and 32 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

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CarriesBig Hill Road
CrossesKerrs Creek
Location1.50 to 636 & 0.00 to 850
RouteCounty Highway 646
CountyRockbridge County
StateVirginia
Coordinates37.86717, -79.54974
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99 US tons
Inventory rating87 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span35 ft (10.7 m)
Deck width32 ft (9.7 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic331 (2022)
Projected traffic369 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 Big Hill Road over Kerrs Creek built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1984.

What condition is Big Hill Road over Kerrs 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 December 2023.

How much traffic does Big Hill Road over Kerrs Creek carry?

About 331 vehicles per day (2022 count).

How long is Big Hill Road over Kerrs Creek?

The structure is 37 ft (11.3 m) long with a longest span of 35 ft (10.7 m) and a deck 32 ft wide.

Who owns Big Hill Road over Kerrs Creek?

It is owned by the State Highway Agency.