US Bridges

I-77 SB over Northbound Roadway Ramps

Fair

Kanawha County, West Virginia · 0.26 MI S of Wv 61 · Structure no. 00000000020A638

Built
1954
71 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
175 ft
1 main span
Daily traffic
39,759
2019 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-77 SB over Northbound Roadway Ramps is a steel continuous stringer/multi-beam or girder carrying I-77 SB over Northbound 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 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 39,759 vehicles a day, roughly 17% of them trucks, projected to reach 65,578 by 2039. The structure is 175 ft (53.4 m) long and 44 ft wide.

Location

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CarriesI-77 SB
CrossesNorthbound Roadway Ramps
Location0.26 MI S of Wv 61
RouteInterstate 7700
CountyKanawha County
StateWest Virginia
Coordinates38.30695, -81.56659
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20 + Mod
Structure length175 ft (53.4 m)
Longest span84 ft (25.5 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,759 (2019)
Projected traffic65,578 by 2039
Trucks17%
Lanes on structure2
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 SB over Northbound Roadway Ramps built?

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

What condition is I-77 SB over Northbound 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 SB over Northbound Roadway Ramps carry?

About 39,759 vehicles per day (2019 count), of which roughly 17% are trucks.

How long is I-77 SB over Northbound Roadway Ramps?

The structure is 175 ft (53.4 m) long with a longest span of 84 ft (25.5 m) and a deck 44 ft wide.

Who owns I-77 SB over Northbound Roadway Ramps?

It is owned by the State Toll Authority.