US Bridges

Snake Run Road over Snake Run

Fair

Alleghany County, Virginia · 1.20 to 311 & 0.60 to 600 · Structure no. 000000000001088

Built
1932
93 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
31 ft
2 main spans
Daily traffic
40
2020 count
Owner
State
State Highway Agency

About this bridge

Snake Run Road over Snake Run is a concrete slab carrying Snake Run Road over Snake Run in Alleghany County, Virginia. It was built in 1932, so it is 93 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 40 vehicles a day, projected to reach 50 by 2042. The structure is 31 ft (9.4 m) long and 22 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesSnake Run Road
CrossesSnake Run
Location1.20 to 311 & 0.60 to 600
RouteCounty Highway 604
CountyAlleghany County
StateVirginia
Coordinates37.67162, -80.2139
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 protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length31 ft (9.4 m)
Longest span15 ft (4.6 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2020)
Projected traffic50 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$295 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Snake Run Road over Snake Run built?

It was built in 1932, making it 93 years old in 2025.

What condition is Snake Run Road over Snake 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 November 2023.

How much traffic does Snake Run Road over Snake Run carry?

About 40 vehicles per day (2020 count).

How long is Snake Run Road over Snake Run?

The structure is 31 ft (9.4 m) long with a longest span of 15 ft (4.6 m) and a deck 22 ft wide.

Who owns Snake Run Road over Snake Run?

It is owned by the State Highway Agency.