US Bridges

I-77 S. to I-79 N. over I-77 North

Fair

Kanawha County, West Virginia · 0.13 MI N of I-79 · Structure no. 00000000020A440

Built
1974
51 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
110 ft
1 main span
Daily traffic
2,000
2022 count
Owner
State
State Highway Agency

About this bridge

I-77 S. to I-79 N. over I-77 North is a steel stringer/multi-beam or girder carrying I-77 S. to I-79 N. over I-77 North in Kanawha County, West Virginia. It was built in 1974, so it is 51 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 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 2,000 vehicles a day, roughly 17% of them trucks, projected to reach 3,120 by 2042. The structure is 110 ft (33.4 m) long and 59 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesI-77 S. to I-79 N.
CrossesI-77 North
Location0.13 MI N of I-79
RouteInterstate 77
CountyKanawha County
StateWest Virginia
Coordinates38.37692, -81.60628
Functional classUrban 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
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 geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length110 ft (33.4 m)
Longest span102 ft (31 m)
Deck width59 ft (18 m)
Roadway width53 ft (16.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2022)
Projected traffic3,120 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
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$800,000 (2019 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-77 S. to I-79 N. over I-77 North built?

It was built in 1974, making it 51 years old in 2025.

What condition is I-77 S. to I-79 N. over I-77 North 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 January 2024.

How much traffic does I-77 S. to I-79 N. over I-77 North carry?

About 2,000 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is I-77 S. to I-79 N. over I-77 North?

The structure is 110 ft (33.4 m) long with a longest span of 102 ft (31 m) and a deck 59 ft wide.

Who owns I-77 S. to I-79 N. over I-77 North?

It is owned by the State Highway Agency.