US Bridges

I 79 NB over Marion CR 33

Poor

Marion County, West Virginia · 2.13 MI North Wv Rt 310 · Structure no. 00000000025A145

Built
1968
57 years old
Condition
Poor
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
139 ft
1 main span
Daily traffic
15,950
2022 count
Owner
State
State Highway Agency

About this bridge

I 79 NB over Marion CR 33 is a prestressed concrete stringer/multi-beam or girder carrying I 79 NB over Marion CR 33 in Marion County, West Virginia. It was built in 1968, so it is 57 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 15,950 vehicles a day, roughly 14% of them trucks, projected to reach 21,690 by 2041. The structure is 139 ft (42.4 m) long and 43 ft wide.

CarriesI 79 NB
CrossesMarion CR 33
Location2.13 MI North Wv Rt 310
RouteInterstate 7900
Coordinates39.48903, -80.08954
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length139 ft (42.4 m)
Longest span53 ft (16.1 m)
Deck width43 ft (13 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,950 (2022)
Projected traffic21,690 by 2041
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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$4 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 79 NB over Marion CR 33 built?

It was built in 1968, making it 57 years old in 2025.

What condition is I 79 NB over Marion CR 33 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.

How much traffic does I 79 NB over Marion CR 33 carry?

About 15,950 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is I 79 NB over Marion CR 33?

The structure is 139 ft (42.4 m) long with a longest span of 53 ft (16.1 m) and a deck 43 ft wide.

Who owns I 79 NB over Marion CR 33?

It is owned by the State Highway Agency.