US Bridges

Dunlap Creek Road over Dunlap Creek

PoorPosted for load

Alleghany County, Virginia · 3.63 to 717 & 2.47 to 665 · Structure no. 000000000001031

Built
1928
97 years old, rebuilt 1992
Condition
Poor
inspected March 2024
Type
Truss - Thru
Steel
Length
93 ft
1 main span
Daily traffic
649
2022 count
Owner
State
State Highway Agency

About this bridge

Dunlap Creek Road over Dunlap Creek is a steel truss - thru carrying Dunlap Creek Road over Dunlap Creek in Alleghany County, Virginia. It was built in 1928 and reconstructed in 1992, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 649 vehicles a day, roughly 1% of them trucks, projected to reach 724 by 2045. The structure is 93 ft (28.3 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesDunlap Creek Road
CrossesDunlap Creek
Location3.63 to 717 & 2.47 to 665
RouteState Highway 159
Coordinates37.75849, -80.12619
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 10 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length93 ft (28.3 m)
Longest span93 ft (28.3 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic649 (2022)
Projected traffic724 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$610 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Dunlap Creek Road over Dunlap Creek built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1992.

What condition is Dunlap Creek Road over Dunlap Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Dunlap Creek Road over Dunlap Creek carry?

About 649 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Dunlap Creek Road over Dunlap Creek?

The structure is 93 ft (28.3 m) long with a longest span of 93 ft (28.3 m) and a deck 24 ft wide.

Who owns Dunlap Creek Road over Dunlap Creek?

It is owned by the State Highway Agency.