US Bridges

US74 Wbl over NC108

Good

Polk County, North Carolina · .7 MI.W.JCT.SR1531 · Structure no. 000000001490222

Built
1990
35 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
148 ft
3 main spans
Daily traffic
8,750
2022 count
Owner
State
State Highway Agency

About this bridge

US74 Wbl over NC108 is a prestressed concrete stringer/multi-beam or girder carrying US74 Wbl over NC108 in Polk County, North Carolina. It was built in 1990, so it is 35 years old, younger than the North Carolina average of 38.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,750 vehicles a day, roughly 14% of them trucks, projected to reach 17,500 by 2040. The structure is 148 ft (45.1 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS74 Wbl
CrossesNC108
Location.7 MI.W.JCT.SR1531
RouteU.S. Route 74
Coordinates35.25938, -82.18268
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating44 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length148 ft (45.1 m)
Longest span72 ft (21.9 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,750 (2022)
Projected traffic17,500 by 2040
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US74 Wbl over NC108 built?

It was built in 1990, making it 35 years old in 2025.

What condition is US74 Wbl over NC108 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does US74 Wbl over NC108 carry?

About 8,750 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is US74 Wbl over NC108?

The structure is 148 ft (45.1 m) long with a longest span of 72 ft (21.9 m) and a deck 41 ft wide.

Who owns US74 Wbl over NC108?

It is owned by the State Highway Agency.