US Bridges

Sbl Route I-77 over Lambsburg Rd./Rte. 620

Fair

Carroll County, Virginia · 1.16-NC Line; 13.82-RT 58 · Structure no. 000000000004569

Built
1976
49 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
182 ft
3 main spans
Daily traffic
20,539
2022 count
Owner
State
State Highway Agency

About this bridge

Sbl Route I-77 over Lambsburg Rd./Rte. 620 is a steel continuous stringer/multi-beam or girder carrying Sbl Route I-77 over Lambsburg Rd./Rte. 620 in Carroll County, Virginia. It was built in 1976, so it is 49 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 5 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 20,539 vehicles a day, roughly 1% of them trucks, projected to reach 22,833 by 2042. The structure is 182 ft (55.5 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSbl Route I-77
CrossesLambsburg Rd./Rte. 620
Location1.16-NC Line; 13.82-RT 58
RouteInterstate 77
CountyCarroll County
StateVirginia
Coordinates36.57807, -80.74313
Functional classRural Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93 US tons
Inventory rating72 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length182 ft (55.5 m)
Longest span74 ft (22.6 m)
Deck width56 ft (17.1 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,539 (2022)
Projected traffic22,833 by 2042
Trucks1%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sbl Route I-77 over Lambsburg Rd./Rte. 620 built?

It was built in 1976, making it 49 years old in 2025.

What condition is Sbl Route I-77 over Lambsburg Rd./Rte. 620 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 2023.

How much traffic does Sbl Route I-77 over Lambsburg Rd./Rte. 620 carry?

About 20,539 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Sbl Route I-77 over Lambsburg Rd./Rte. 620?

The structure is 182 ft (55.5 m) long with a longest span of 74 ft (22.6 m) and a deck 56 ft wide.

Who owns Sbl Route I-77 over Lambsburg Rd./Rte. 620?

It is owned by the State Highway Agency.