US Bridges

I-77 NB over I-77 NB Roadway Ramps

Fair

Kanawha County, West Virginia · 0.26 MI S of Wv 61 · Structure no. 00000000020A637

Built
1954
71 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
176 ft
1 main span
Daily traffic
33,000
2022 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-77 NB over I-77 NB Roadway Ramps is a steel continuous stringer/multi-beam or girder carrying I-77 NB over I-77 NB Roadway Ramps in Kanawha County, West Virginia. It was built in 1954, so it is 71 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 33,000 vehicles a day, roughly 29% of them trucks, projected to reach 69,578 by 2039. The structure is 176 ft (53.5 m) long and 52 ft wide.

Location

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CarriesI-77 NB
CrossesI-77 NB Roadway Ramps
Location0.26 MI S of Wv 61
RouteInterstate 7700
CountyKanawha County
StateWest Virginia
Coordinates38.30683, -81.56642
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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 spans1 (+2 approach)
Design loadHS 20 + Mod
Structure length176 ft (53.5 m)
Longest span84 ft (25.5 m)
Deck width52 ft (15.9 m)
Roadway width49 ft (14.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,000 (2022)
Projected traffic69,578 by 2039
Trucks29%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 NB over I-77 NB Roadway Ramps built?

It was built in 1954, making it 71 years old in 2025.

What condition is I-77 NB over I-77 NB Roadway Ramps 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 November 2023.

How much traffic does I-77 NB over I-77 NB Roadway Ramps carry?

About 33,000 vehicles per day (2022 count), of which roughly 29% are trucks.

How long is I-77 NB over I-77 NB Roadway Ramps?

The structure is 176 ft (53.5 m) long with a longest span of 84 ft (25.5 m) and a deck 52 ft wide.

Who owns I-77 NB over I-77 NB Roadway Ramps?

It is owned by the State Toll Authority.