US Bridges

NC157 over S. Flat River

Fair

Person County, North Carolina · 0.3 Mi. N. Jct. SR1001 · Structure no. 000000001450023

Built
1961
64 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
121 ft
3 main spans
Daily traffic
3,000
2021 count
Owner
State
State Highway Agency

About this bridge

NC157 over S. Flat River is a prestressed concrete stringer/multi-beam or girder carrying NC157 over S. Flat River in Person County, North Carolina. It was built in 1961, so it is 64 years old, older than the North Carolina average of 38.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,000 vehicles a day, roughly 7% of them trucks, projected to reach 6,000 by 2040. The structure is 121 ft (36.8 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNC157
CrossesS. Flat River
Location0.3 Mi. N. Jct. SR1001
RouteState Highway 157
CountyPerson County
StateNorth Carolina
Coordinates36.27727, -79.0445
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.9 US tons
Inventory rating39.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length121 ft (36.8 m)
Longest span39 ft (11.8 m)
Deck width33 ft (10 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2021)
Projected traffic6,000 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NC157 over S. Flat River built?

It was built in 1961, making it 64 years old in 2025.

What condition is NC157 over S. Flat River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.

How much traffic does NC157 over S. Flat River carry?

About 3,000 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is NC157 over S. Flat River?

The structure is 121 ft (36.8 m) long with a longest span of 39 ft (11.8 m) and a deck 33 ft wide.

Who owns NC157 over S. Flat River?

It is owned by the State Highway Agency.