US Bridges

I77 S over CR 21

Fair

Jackson County, West Virginia · 8.48 Miles North of Wv 34 · Structure no. 00000000018A257

Built
2010
15 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
180 ft
1 main span
Daily traffic
9,600
2019 count
Owner
State
State Highway Agency

About this bridge

I77 S over CR 21 is a steel continuous stringer/multi-beam or girder carrying I77 S over CR 21 in Jackson County, West Virginia. It was built in 2010, so it is 15 years old, younger 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 9,600 vehicles a day, roughly 22% of them trucks, projected to reach 13,728 by 2039. The structure is 180 ft (55 m) long and 45 ft wide.

Location

Open in Google Maps
CarriesI77 S
CrossesCR 21
Location8.48 Miles North of Wv 34
RouteInterstate 77
CountyJackson County
StateWest Virginia
Coordinates38.75923, -81.69216
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.
Superstructure7 GoodSome minor problems.
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 geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 25 or greater
Structure length180 ft (55 m)
Longest span78 ft (23.8 m)
Deck width45 ft (13.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,600 (2019)
Projected traffic13,728 by 2039
Trucks22%
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 I77 S over CR 21 built?

It was built in 2010, making it 15 years old in 2025.

What condition is I77 S over CR 21 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 I77 S over CR 21 carry?

About 9,600 vehicles per day (2019 count), of which roughly 22% are trucks.

How long is I77 S over CR 21?

The structure is 180 ft (55 m) long with a longest span of 78 ft (23.8 m) and a deck 45 ft wide.

Who owns I77 S over CR 21?

It is owned by the State Highway Agency.