US Bridges

I-77 Sbl over RTE 717

Fair

Bland County, Virginia · .94 FR WCL-.36 to Bwmt · Structure no. 000000000002986

Built
1972
53 years old, rebuilt 1987
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
145 ft
3 main spans
Daily traffic
13,622
2022 count
Owner
State
State Highway Agency

About this bridge

I-77 Sbl over RTE 717 is a prestressed concrete stringer/multi-beam or girder carrying I-77 Sbl over RTE 717 in Bland County, Virginia. It was built in 1972 and reconstructed in 1987, so it is 53 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 13,622 vehicles a day, roughly 1% of them trucks, projected to reach 14,604 by 2042. The structure is 145 ft (44.2 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-77 Sbl
CrossesRTE 717
Location.94 FR WCL-.36 to Bwmt
RouteInterstate 77
CountyBland County
StateVirginia
Coordinates37.03172, -81.12095
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating78 US tons
Inventory rating48 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length145 ft (44.2 m)
Longest span60 ft (18.3 m)
Deck width54 ft (16.6 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,622 (2022)
Projected traffic14,604 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$217.1 million (2019 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-77 Sbl over RTE 717 built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 1987.

What condition is I-77 Sbl over RTE 717 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 September 2024.

How much traffic does I-77 Sbl over RTE 717 carry?

About 13,622 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is I-77 Sbl over RTE 717?

The structure is 145 ft (44.2 m) long with a longest span of 60 ft (18.3 m) and a deck 54 ft wide.

Who owns I-77 Sbl over RTE 717?

It is owned by the State Highway Agency.