US Bridges

I-77 Nbl & Sbl over Big Run

Fair

Wood County, West Virginia · 1.66 Mi. N. of Wv. 2 · Structure no. 00000000054A155

Built
1965
60 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete Continuous
Length
52 ft
3 main spans
Daily traffic
20,200
2019 count
Owner
State
State Highway Agency

About this bridge

I-77 Nbl & Sbl over Big Run is a concrete continuous culvert carrying I-77 Nbl & Sbl over Big Run in Wood County, West Virginia. It was built in 1965, so it is 60 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 20,200 vehicles a day, roughly 19% of them trucks, projected to reach 28,886 by 2039. The structure is 52 ft (15.8 m) long.

Location

Open in Google Maps
CarriesI-77 Nbl & Sbl
CrossesBig Run
Location1.66 Mi. N. of Wv. 2
RouteInterstate 77
CountyWood County
StateWest Virginia
Coordinates39.33414, -81.46243
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
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length52 ft (15.8 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,200 (2019)
Projected traffic28,886 by 2039
Trucks19%
Lanes on structure4
Traffic directionTwo-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3 million (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I-77 Nbl & Sbl over Big Run built?

It was built in 1965, making it 60 years old in 2025.

What condition is I-77 Nbl & Sbl over Big Run 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 2023.

How much traffic does I-77 Nbl & Sbl over Big Run carry?

About 20,200 vehicles per day (2019 count), of which roughly 19% are trucks.

How long is I-77 Nbl & Sbl over Big Run?

The structure is 52 ft (15.8 m) long with a longest span of 16 ft (4.9 m).

Who owns I-77 Nbl & Sbl over Big Run?

It is owned by the State Highway Agency.