US Bridges

Interstate 77 N over County Route 21

Good

Wood County, West Virginia · 1.60 Miles North of CR 21 · Structure no. 00000000054A249

Built
2012
13 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
215 ft
1 main span
Daily traffic
3,850
2019 count
Owner
State
State Highway Agency

About this bridge

Interstate 77 N over County Route 21 is a concrete continuous stringer/multi-beam or girder carrying Interstate 77 N 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 215 ft (65.4 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesInterstate 77 N
CrossesCounty Route 21
Location1.60 Miles North of CR 21
RouteInterstate 77
CountyWood County
StateWest Virginia
Coordinates39.11568, -81.54558
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 rating48.9 US tons
Inventory rating39 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHL 93
Structure length215 ft (65.4 m)
Longest span97 ft (29.5 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 N over County Route 21 built?

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

What condition is Interstate 77 N 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 N over County Route 21 carry?

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

How long is Interstate 77 N over County Route 21?

The structure is 215 ft (65.4 m) long with a longest span of 97 ft (29.5 m) and a deck 44 ft wide.

Who owns Interstate 77 N over County Route 21?

It is owned by the State Highway Agency.