US Bridges

I-79 Sbl over Wv 36

Fair

Roane County, West Virginia · 8.570MI. N. Cr. 29 · Structure no. 00000000044A138

Built
1972
53 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
305 ft
2 main spans
Daily traffic
4,900
2019 count
Owner
State
State Highway Agency

About this bridge

I-79 Sbl over Wv 36 is a steel continuous stringer/multi-beam or girder carrying I-79 Sbl over Wv 36 in Roane County, West Virginia. It was built in 1972, so it is 53 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 4,900 vehicles a day, roughly 8% of them trucks, projected to reach 7,007 by 2039. The structure is 305 ft (92.9 m) long and 50 ft wide.

Location

Open in Google Maps
CarriesI-79 Sbl
CrossesWv 36
Location8.570MI. N. Cr. 29
RouteInterstate 79
CountyRoane County
StateWest Virginia
Coordinates38.56846, -81.1335
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionAugust 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20 + Mod
Structure length305 ft (92.9 m)
Longest span95 ft (29 m)
Deck width50 ft (15.2 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,900 (2019)
Projected traffic7,007 by 2039
Trucks8%
Lanes on structure3
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-79 Sbl over Wv 36 built?

It was built in 1972, making it 53 years old in 2025.

What condition is I-79 Sbl over Wv 36 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 August 2023.

How much traffic does I-79 Sbl over Wv 36 carry?

About 4,900 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is I-79 Sbl over Wv 36?

The structure is 305 ft (92.9 m) long with a longest span of 95 ft (29 m) and a deck 50 ft wide.

Who owns I-79 Sbl over Wv 36?

It is owned by the State Highway Agency.