US Bridges

Humingbird LN/610 over Little River

FairPosted for load

Floyd County, Virginia · 0.40 Rt 648; 0.10 Rt 791 · Structure no. 000000000007517

Built
1977
48 years old, rebuilt 2003
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
73 ft
2 main spans
Daily traffic
404
2022 count
Owner
State
State Highway Agency

About this bridge

Humingbird LN/610 over Little River is a steel stringer/multi-beam or girder carrying Humingbird LN/610 over Little River in Floyd County, Virginia. It was built in 1977 and reconstructed in 2003, so it is 48 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 404 vehicles a day, roughly 1% of them trucks, projected to reach 434 by 2045. The structure is 73 ft (22.3 m) long and 21 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesHumingbird LN/610
CrossesLittle River
Location0.40 Rt 648; 0.10 Rt 791
RouteCounty Highway 610
CountyFloyd County
StateVirginia
Coordinates37.0288, -80.12444
Functional classRural Minor 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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans2
Design loadHS 20
Structure length73 ft (22.3 m)
Longest span42 ft (12.8 m)
Deck width21 ft (6.4 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic404 (2022)
Projected traffic434 by 2045
Trucks1%
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$281.6 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Humingbird LN/610 over Little River built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 2003.

What condition is Humingbird LN/610 over Little 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 January 2025.

How much traffic does Humingbird LN/610 over Little River carry?

About 404 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Humingbird LN/610 over Little River?

The structure is 73 ft (22.3 m) long with a longest span of 42 ft (12.8 m) and a deck 21 ft wide.

Who owns Humingbird LN/610 over Little River?

It is owned by the State Highway Agency.