US Bridges

I-77 Sbl over I 77 South

Fair

Wood County, West Virginia · 1.04 Miles North of CR 21 · Structure no. 00000000054A118

Built
1969
56 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
112 ft
1 main span
Daily traffic
3,850
2019 count
Owner
State
State Highway Agency

About this bridge

I-77 Sbl over I 77 South is a steel continuous stringer/multi-beam or girder carrying I-77 Sbl over I 77 South in Wood County, West Virginia. It was built in 1969, so it is 56 years old, older than the West Virginia average of 44.7 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 3,850 vehicles a day, roughly 19% of them trucks, projected to reach 5,506 by 2039. The structure is 112 ft (34.1 m) long and 41 ft wide.

Location

Open in Google Maps
CarriesI-77 Sbl
CrossesI 77 South
Location1.04 Miles North of CR 21
RouteInterstate 77
CountyWood County
StateWest Virginia
Coordinates39.08871, -81.54329
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 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 alignment7: Better than present minimum criteria
Operating rating63.9 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20 + Mod
Structure length112 ft (34.1 m)
Longest span42 ft (12.8 m)
Deck width41 ft (12.4 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,850 (2019)
Projected traffic5,506 by 2039
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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$482,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-77 Sbl over I 77 South built?

It was built in 1969, making it 56 years old in 2025.

What condition is I-77 Sbl over I 77 South 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 June 2023.

How much traffic does I-77 Sbl over I 77 South carry?

About 3,850 vehicles per day (2019 count), of which roughly 19% are trucks.

How long is I-77 Sbl over I 77 South?

The structure is 112 ft (34.1 m) long with a longest span of 42 ft (12.8 m) and a deck 41 ft wide.

Who owns I-77 Sbl over I 77 South?

It is owned by the State Highway Agency.