US Bridges

I-77 Nbl over Tygart Creek

Fair

Wood County, West Virginia · 1.66 Mile South of Wv 14 · Structure no. 00000000054A175

Built
1997
28 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
187 ft
1 main span
Daily traffic
6,400
2019 count
Owner
State
State Highway Agency

About this bridge

I-77 Nbl over Tygart Creek is a steel continuous stringer/multi-beam or girder carrying I-77 Nbl over Tygart Creek in Wood County, West Virginia. It was built in 1997, so it is 28 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 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 6,400 vehicles a day, roughly 19% of them trucks, projected to reach 9,152 by 2039. The structure is 187 ft (57 m) long and 41 ft wide.

Location

Open in Google Maps
CarriesI-77 Nbl
CrossesTygart Creek
Location1.66 Mile South of Wv 14
RouteInterstate 77
CountyWood County
StateWest Virginia
Coordinates39.16672, -81.54
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating69 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 25 or greater
Structure length187 ft (57 m)
Longest span71 ft (21.6 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,400 (2019)
Projected traffic9,152 by 2039
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$750,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I-77 Nbl over Tygart Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is I-77 Nbl over Tygart Creek 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 June 2023.

How much traffic does I-77 Nbl over Tygart Creek carry?

About 6,400 vehicles per day (2019 count), of which roughly 19% are trucks.

How long is I-77 Nbl over Tygart Creek?

The structure is 187 ft (57 m) long with a longest span of 71 ft (21.6 m) and a deck 41 ft wide.

Who owns I-77 Nbl over Tygart Creek?

It is owned by the State Highway Agency.