US Bridges

I-77 Nbl over Grasslick Creek

Good

Jackson County, West Virginia · 6.02 MI N of Wv 34 · Structure no. 00000000018A154

Built
1958
67 years old, rebuilt 1998
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
158 ft
1 main span
Daily traffic
6,900
2022 count
Owner
State
State Highway Agency

About this bridge

I-77 Nbl over Grasslick Creek is a steel continuous stringer/multi-beam or girder carrying I-77 Nbl over Grasslick Creek in Jackson County, West Virginia. It was built in 1958 and reconstructed in 1998, so it is 67 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,900 vehicles a day, roughly 23% of them trucks, projected to reach 9,900 by 2042. The structure is 158 ft (48.2 m) long and 42 ft wide.

CarriesI-77 Nbl
CrossesGrasslick Creek
Location6.02 MI N of Wv 34
RouteInterstate 77
Coordinates38.73341, -81.66272
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
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 rating69 US tons
Inventory rating41 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20 + Mod
Structure length158 ft (48.2 m)
Longest span64 ft (19.4 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,900 (2022)
Projected traffic9,900 by 2042
Trucks23%
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$1.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-77 Nbl over Grasslick Creek built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1998.

What condition is I-77 Nbl over Grasslick Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

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

About 6,900 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is I-77 Nbl over Grasslick Creek?

The structure is 158 ft (48.2 m) long with a longest span of 64 ft (19.4 m) and a deck 42 ft wide.

Who owns I-77 Nbl over Grasslick Creek?

It is owned by the State Highway Agency.