US Bridges

I-77 Sbl over CR 21/24

Poor

Wood County, West Virginia · 4.88 MI S of Wv 14 · Structure no. 00000000054A122

Built
1968
57 years old
Condition
Poor
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
131 ft
3 main spans
Daily traffic
3,850
2019 count
Owner
State
State Highway Agency

About this bridge

I-77 Sbl over CR 21/24 is a steel stringer/multi-beam or girder carrying I-77 Sbl over CR 21/24 in Wood County, West Virginia. It was built in 1968, so it is 57 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 3,850 vehicles a day, roughly 19% of them trucks, projected to reach 5,506 by 2039. The structure is 131 ft (39.9 m) long and 40 ft wide.

Location

Open in Google Maps
CarriesI-77 Sbl
CrossesCR 21/24
Location4.88 MI S of Wv 14
RouteInterstate 77
CountyWood County
StateWest Virginia
Coordinates39.12202, -81.54636
Functional classRural Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be 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 rating94 US tons
Inventory rating56 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length131 ft (39.9 m)
Longest span49 ft (14.8 m)
Deck width40 ft (12.3 m)
Roadway width37 ft (11.2 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$1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-77 Sbl over CR 21/24 built?

It was built in 1968, making it 57 years old in 2025.

What condition is I-77 Sbl over CR 21/24 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.

How much traffic does I-77 Sbl over CR 21/24 carry?

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

How long is I-77 Sbl over CR 21/24?

The structure is 131 ft (39.9 m) long with a longest span of 49 ft (14.8 m) and a deck 40 ft wide.

Who owns I-77 Sbl over CR 21/24?

It is owned by the State Highway Agency.