US Bridges

NC143 over Nat. Forest Rd.

Good

Graham County, North Carolina · .6 Mi.E. Tenn. Line · Structure no. 000000000750142

Built
1997
28 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
120 ft
1 main span
Daily traffic
490
2015 count
Owner
State
State Highway Agency

About this bridge

NC143 over Nat. Forest Rd. is a prestressed concrete box beam or girders - multiple carrying NC143 over Nat. Forest Rd. in Graham County, North Carolina. It was built in 1997, so it is 28 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 490 vehicles a day, roughly 7% of them trucks, projected to reach 980 by 2040. The structure is 120 ft (36.5 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNC143
CrossesNat. Forest Rd.
Location.6 Mi.E. Tenn. Line
RouteState Highway 143
Coordinates35.33657, -84.0313
Functional classRural Major Collector

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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating35.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length120 ft (36.5 m)
Longest span120 ft (36.5 m)
Deck width40 ft (12.1 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic490 (2015)
Projected traffic980 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

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 NC143 over Nat. Forest Rd. built?

It was built in 1997, making it 28 years old in 2025.

What condition is NC143 over Nat. Forest Rd. 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 July 2023.

How much traffic does NC143 over Nat. Forest Rd. carry?

About 490 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is NC143 over Nat. Forest Rd.?

The structure is 120 ft (36.5 m) long with a longest span of 120 ft (36.5 m) and a deck 40 ft wide.

Who owns NC143 over Nat. Forest Rd.?

It is owned by the State Highway Agency.