US Bridges

I-79 Nbl over Wv 16

Fair

Clay County, West Virginia · 5.88 MI N of Wv 36 T · Structure no. 00000000008A070

Built
1974
51 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
325 ft
1 main span
Daily traffic
8,800
2022 count
Owner
State
State Highway Agency

About this bridge

I-79 Nbl over Wv 16 is a steel continuous stringer/multi-beam or girder carrying I-79 Nbl over Wv 16 in Clay 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 8,800 vehicles a day, roughly 25% of them trucks, projected to reach 12,584 by 2042. The structure is 325 ft (99.1 m) long and 45 ft wide.

Location

Open in Google Maps
CarriesI-79 Nbl
CrossesWv 16
Location5.88 MI N of Wv 36 T
RouteInterstate 79
CountyClay County
StateWest Virginia
Coordinates38.59593, -81.04254
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.9 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+3 approach)
Design loadHS 20 + Mod
Structure length325 ft (99.1 m)
Longest span90 ft (27.3 m)
Deck width45 ft (13.7 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,800 (2022)
Projected traffic12,584 by 2042
Trucks25%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$450,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I-79 Nbl over Wv 16 built?

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

What condition is I-79 Nbl over Wv 16 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 February 2024.

How much traffic does I-79 Nbl over Wv 16 carry?

About 8,800 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is I-79 Nbl over Wv 16?

The structure is 325 ft (99.1 m) long with a longest span of 90 ft (27.3 m) and a deck 45 ft wide.

Who owns I-79 Nbl over Wv 16?

It is owned by the State Highway Agency.