US Bridges

Back Ally Dr. over Dry Fork Creek

Fair

Tazewell County, Virginia · .03 FRRT637;.15 Toendmain · Structure no. 000000000018662

Built
1955
70 years old, rebuilt 2006
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
29 ft
1 main span
Daily traffic
6
2015 count
Owner
State
State Highway Agency

About this bridge

Back Ally Dr. over Dry Fork Creek is a steel stringer/multi-beam or girder carrying Back Ally Dr. over Dry Fork Creek in Tazewell County, Virginia. It was built in 1955 and reconstructed in 2006, so it is 70 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 6 vehicles a day, projected to reach 7 by 2042. The structure is 29 ft (8.8 m) long and 12 ft wide. If it were closed, the detour would be 198.8 mi (320 km).

Location

Open in Google Maps
CarriesBack Ally Dr.
CrossesDry Fork Creek
Location.03 FRRT637;.15 Toendmain
RouteCounty Highway 725
CountyTazewell County
StateVirginia
Coordinates37.17438, -81.63007
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length29 ft (8.8 m)
Longest span27 ft (8.2 m)
Deck width12 ft (3.7 m)
Roadway width11 ft (3.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6 (2015)
Projected traffic7 by 2042
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed198.8 mi (320 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$97.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Back Ally Dr. over Dry Fork Creek built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 2006.

What condition is Back Ally Dr. over Dry Fork 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 November 2024.

How much traffic does Back Ally Dr. over Dry Fork Creek carry?

About 6 vehicles per day (2015 count).

How long is Back Ally Dr. over Dry Fork Creek?

The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.2 m) and a deck 12 ft wide.

Who owns Back Ally Dr. over Dry Fork Creek?

It is owned by the State Highway Agency.