US Bridges

Interstate 79 NB over Har. Co. 23/9

Fair

Harrison County, West Virginia · 0.44 MI South Wv Rt 58 · Structure no. 00000000017A255

Built
1973
52 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
271 ft
1 main span
Daily traffic
13,700
2022 count
Owner
State
State Highway Agency

About this bridge

Interstate 79 NB over Har. Co. 23/9 is a steel continuous stringer/multi-beam or girder carrying Interstate 79 NB over Har. Co. 23/9 in Harrison County, West Virginia. It was built in 1973, so it is 52 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 13,700 vehicles a day, roughly 13% of them trucks, projected to reach 17,535 by 2041. The structure is 271 ft (82.6 m) long and 45 ft wide.

Location

Open in Google Maps
CarriesInterstate 79 NB
CrossesHar. Co. 23/9
Location0.44 MI South Wv Rt 58
RouteInterstate 7900
CountyHarrison County
StateWest Virginia
Coordinates39.25169, -80.28463
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length271 ft (82.6 m)
Longest span103 ft (31.4 m)
Deck width45 ft (13.6 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,700 (2022)
Projected traffic17,535 by 2041
Trucks13%
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 replacement with only incidental widening
Estimated improvement cost$1.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Interstate 79 NB over Har. Co. 23/9 built?

It was built in 1973, making it 52 years old in 2025.

What condition is Interstate 79 NB over Har. Co. 23/9 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 January 2024.

How much traffic does Interstate 79 NB over Har. Co. 23/9 carry?

About 13,700 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Interstate 79 NB over Har. Co. 23/9?

The structure is 271 ft (82.6 m) long with a longest span of 103 ft (31.4 m) and a deck 45 ft wide.

Who owns Interstate 79 NB over Har. Co. 23/9?

It is owned by the State Highway Agency.