US Bridges

I-79 N over CO 36

Fair

Gilmer County, West Virginia · 4.43 MI N CO 5/11 · Structure no. 00000000011A105

Built
1972
53 years old, rebuilt 2024
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
117 ft
3 main spans
Daily traffic
13,100
2023 count
Owner
State
State Highway Agency

About this bridge

I-79 N over CO 36 is a steel continuous stringer/multi-beam or girder carrying I-79 N over CO 36 in Gilmer County, West Virginia. It was built in 1972 and reconstructed in 2024, so it is 53 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 6 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 13,100 vehicles a day, roughly 22% of them trucks, projected to reach 18,733 by 2043. The structure is 117 ft (35.8 m) long and 45 ft wide.

Location

Open in Google Maps
CarriesI-79 N
CrossesCO 36
Location4.43 MI N CO 5/11
RouteInterstate 7900
CountyGilmer County
StateWest Virginia
Coordinates38.9035, -80.61012
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length117 ft (35.8 m)
Longest span49 ft (14.9 m)
Deck width45 ft (13.6 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,100 (2023)
Projected traffic18,733 by 2043
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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$350,000 (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-79 N over CO 36 built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2024.

What condition is I-79 N over CO 36 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 October 2024.

How much traffic does I-79 N over CO 36 carry?

About 13,100 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is I-79 N over CO 36?

The structure is 117 ft (35.8 m) long with a longest span of 49 ft (14.9 m) and a deck 45 ft wide.

Who owns I-79 N over CO 36?

It is owned by the State Highway Agency.