US Bridges

Duncan Road over Gravelly Run

FairPosted for load

Dinwiddie County, Virginia · 0.24 FR 605 & 1.46 to 675 · Structure no. 000000000006094

Built
1952
73 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
673
2022 count
Owner
State
State Highway Agency

About this bridge

Duncan Road over Gravelly Run is a steel stringer/multi-beam or girder carrying Duncan Road over Gravelly Run in Dinwiddie County, Virginia. It was built in 1952, so it is 73 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. Its operating status is: posted for load restriction.

It carries about 673 vehicles a day, roughly 1% of them trucks, projected to reach 750 by 2042. The structure is 54 ft (16.5 m) long and 22 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

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CarriesDuncan Road
CrossesGravelly Run
Location0.24 FR 605 & 1.46 to 675
RouteCounty Highway 670
CountyDinwiddie County
StateVirginia
Coordinates37.09451, -77.47477
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, 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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.2 US tons
Inventory rating22.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length54 ft (16.5 m)
Longest span51 ft (15.5 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic673 (2022)
Projected traffic750 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$108 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Duncan Road over Gravelly Run built?

It was built in 1952, making it 73 years old in 2025.

What condition is Duncan Road over Gravelly 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 December 2023.

How much traffic does Duncan Road over Gravelly Run carry?

About 673 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Duncan Road over Gravelly Run?

The structure is 54 ft (16.5 m) long with a longest span of 51 ft (15.5 m) and a deck 22 ft wide.

Who owns Duncan Road over Gravelly Run?

It is owned by the State Highway Agency.