US Bridges

Gammons RD/649 over Little Dan River

Fair

Patrick County, Virginia · 0.30-RT 663;1.50-RT 665 · Structure no. 000000000013317

Built
1951
74 years old, rebuilt 2023
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
71 ft
2 main spans
Daily traffic
152
2014 count
Owner
State
State Highway Agency

About this bridge

Gammons RD/649 over Little Dan River is a steel stringer/multi-beam or girder carrying Gammons RD/649 over Little Dan River in Patrick County, Virginia. It was built in 1951 and reconstructed in 2023, so it is 74 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 152 vehicles a day, projected to reach 176 by 2045. The structure is 71 ft (21.7 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesGammons RD/649
CrossesLittle Dan River
Location0.30-RT 663;1.50-RT 665
RouteCounty Highway 649
CountyPatrick County
StateVirginia
Coordinates36.56458, -80.37401
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 20 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating85 US tons
Inventory rating65 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans2
Design loadHL 93
Structure length71 ft (21.7 m)
Longest span49 ft (14.9 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic152 (2014)
Projected traffic176 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$270.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Gammons RD/649 over Little Dan River built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 2023.

What condition is Gammons RD/649 over Little Dan River 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 August 2023.

How much traffic does Gammons RD/649 over Little Dan River carry?

About 152 vehicles per day (2014 count).

How long is Gammons RD/649 over Little Dan River?

The structure is 71 ft (21.7 m) long with a longest span of 49 ft (14.9 m) and a deck 25 ft wide.

Who owns Gammons RD/649 over Little Dan River?

It is owned by the State Highway Agency.