US Bridges

US1 Sbl over NC56

Good

Franklin County, North Carolina · 0.5MI.N.JCT.SR1127 · Structure no. 000000000690164

Built
1994
31 years old
Condition
Good
inspected April 2021
Type
Stringer/Multi-beam or Girder
Steel
Length
131 ft
1 main span
Daily traffic
10,500
2019 count
Owner
State
State Highway Agency

About this bridge

US1 Sbl over NC56 is a steel stringer/multi-beam or girder carrying US1 Sbl over NC56 in Franklin County, North Carolina. It was built in 1994, so it is 31 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 10,500 vehicles a day, roughly 14% of them trucks, projected to reach 21,000 by 2040. The structure is 131 ft (39.9 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS1 Sbl
CrossesNC56
Location0.5MI.N.JCT.SR1127
RouteU.S. Route 1
Coordinates36.10353, -78.46527
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 inspectionApril 2021
Inspection intervalevery 48 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 rating99 US tons
Inventory rating59 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length131 ft (39.9 m)
Longest span128 ft (39 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2019)
Projected traffic21,000 by 2040
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 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 US1 Sbl over NC56 built?

It was built in 1994, making it 31 years old in 2025.

What condition is US1 Sbl over NC56 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 April 2021.

How much traffic does US1 Sbl over NC56 carry?

About 10,500 vehicles per day (2019 count), of which roughly 14% are trucks.

How long is US1 Sbl over NC56?

The structure is 131 ft (39.9 m) long with a longest span of 128 ft (39 m) and a deck 41 ft wide.

Who owns US1 Sbl over NC56?

It is owned by the State Highway Agency.