US Bridges

NC73 over Big Mountain Creek

Good

Richmond County, North Carolina · 1.5 Mi. W. Jct. SR1314 · Structure no. 000000001530037

Built
1998
27 years old
Condition
Good
inspected September 2024
Type
Slab
Prestressed Concrete
Length
144 ft
3 main spans
Daily traffic
1,300
2022 count
Owner
State
State Highway Agency

About this bridge

NC73 over Big Mountain Creek is a prestressed concrete slab carrying NC73 over Big Mountain Creek in Richmond County, North Carolina. It was built in 1998, so it is 27 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 1,300 vehicles a day, roughly 7% of them trucks, projected to reach 2,600 by 2040. The structure is 144 ft (43.8 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNC73
CrossesBig Mountain Creek
Location1.5 Mi. W. Jct. SR1314
RouteState Highway 73
Coordinates35.11966, -79.81626
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86 US tons
Inventory rating50.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20 + Mod
Structure length144 ft (43.8 m)
Longest span48 ft (14.6 m)
Deck width36 ft (10.9 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2022)
Projected traffic2,600 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was NC73 over Big Mountain Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is NC73 over Big Mountain Creek 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 2024.

How much traffic does NC73 over Big Mountain Creek carry?

About 1,300 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is NC73 over Big Mountain Creek?

The structure is 144 ft (43.8 m) long with a longest span of 48 ft (14.6 m) and a deck 36 ft wide.

Who owns NC73 over Big Mountain Creek?

It is owned by the State Highway Agency.