US Bridges

Interstate 77 S over County Route 21

Good

Wood County, West Virginia · 1.60 Miles North of CR 21 · Structure no. 00000000054A250

Built
2012
13 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
206 ft
1 main span
Daily traffic
3,850
2019 count
Owner
State
State Highway Agency

About this bridge

Interstate 77 S over County Route 21 is a prestressed concrete continuous box beam or girders - multiple carrying Interstate 77 S over County Route 21 in Wood County, West Virginia. It was built in 2012, so it is 13 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,850 vehicles a day, roughly 11% of them trucks, projected to reach 5,506 by 2039. The structure is 206 ft (62.8 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesInterstate 77 S
CrossesCounty Route 21
Location1.60 Miles North of CR 21
RouteInterstate 77
CountyWood County
StateWest Virginia
Coordinates39.11536, -81.54581
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating39 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHL 93
Structure length206 ft (62.8 m)
Longest span96 ft (29.3 m)
Deck width44 ft (13.5 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,850 (2019)
Projected traffic5,506 by 2039
Trucks11%
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$3.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Interstate 77 S over County Route 21 built?

It was built in 2012, making it 13 years old in 2025.

What condition is Interstate 77 S over County Route 21 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Interstate 77 S over County Route 21 carry?

About 3,850 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is Interstate 77 S over County Route 21?

The structure is 206 ft (62.8 m) long with a longest span of 96 ft (29.3 m) and a deck 44 ft wide.

Who owns Interstate 77 S over County Route 21?

It is owned by the State Highway Agency.