US Bridges

I-77 over Tunnel Access Road

Fair

Kanawha County, West Virginia · 1.13 Mi. N. of Wv 83 Conn · Structure no. 00000000020A712

Built
1987
38 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
23,191
2021 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-77 over Tunnel Access Road is a concrete culvert carrying I-77 over Tunnel Access Road in Kanawha County, West Virginia. It was built in 1987, so it is 38 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 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 23,191 vehicles a day, roughly 17% of them trucks, projected to reach 40,584 by 2041. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 36 mi (58 km).

Location

Open in Google Maps
CarriesI-77
CrossesTunnel Access Road
Location1.13 Mi. N. of Wv 83 Conn
RouteInterstate 7700
CountyKanawha County
StateWest Virginia
Coordinates38.13528, -81.40563
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
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,191 (2021)
Projected traffic40,584 by 2041
Trucks17%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed36 mi (58 km)
TollOn an Interstate toll segment under Secretarial agreement
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-77 over Tunnel Access Road built?

It was built in 1987, making it 38 years old in 2025.

What condition is I-77 over Tunnel Access Road 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 April 2024.

How much traffic does I-77 over Tunnel Access Road carry?

About 23,191 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is I-77 over Tunnel Access Road?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m).

Who owns I-77 over Tunnel Access Road?

It is owned by the State Toll Authority.