US Bridges

Bamboo RD over Big Fork

Fair

Buchanan County, Virginia · 0.0-RT 620 0.60-DEAD End · Structure no. 000000000029775

Built
1932
93 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
60
2011 count
Owner
County
County Highway Agency

About this bridge

Bamboo RD over Big Fork is a concrete slab carrying Bamboo RD over Big Fork in Buchanan 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 60 vehicles a day, projected to reach 90 by 2042. The structure is 32 ft (9.8 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesBamboo RD
CrossesBig Fork
Location0.0-RT 620 0.60-DEAD End
RouteCity Street 3265
Coordinates37.20697, -82.0978
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating28 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2011)
Projected traffic90 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$457 million (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Bamboo RD over Big Fork built?

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

What condition is Bamboo RD over Big Fork 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 March 2023.

How much traffic does Bamboo RD over Big Fork carry?

About 60 vehicles per day (2011 count).

How long is Bamboo RD over Big Fork?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns Bamboo RD over Big Fork?

It is owned by the County Highway Agency.