US Bridges

US1 Nbl over SR1857 Seaboard RR

Fair

Moore County, North Carolina · 1.7 Mi. N. JCT.NC2 & NC22 · Structure no. 000000001250056

Built
1957
68 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
277 ft
5 main spans
Daily traffic
11,250
2022 count
Owner
State
State Highway Agency

About this bridge

US1 Nbl over SR1857 Seaboard RR is a steel stringer/multi-beam or girder carrying US1 Nbl over SR1857 Seaboard RR in Moore County, North Carolina. It was built in 1957, so it is 68 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 6 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 11,250 vehicles a day, roughly 14% of them trucks, projected to reach 22,500 by 2040. The structure is 277 ft (84.4 m) long and 33 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUS1 Nbl
CrossesSR1857 Seaboard RR
Location1.7 Mi. N. JCT.NC2 & NC22
RouteU.S. Route 1
CountyMoore County
StateNorth Carolina
Coordinates35.20146, -79.35829
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length277 ft (84.4 m)
Longest span60 ft (18.2 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,250 (2022)
Projected traffic22,500 by 2040
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US1 Nbl over SR1857 Seaboard RR built?

It was built in 1957, making it 68 years old in 2025.

What condition is US1 Nbl over SR1857 Seaboard RR 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 August 2024.

How much traffic does US1 Nbl over SR1857 Seaboard RR carry?

About 11,250 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is US1 Nbl over SR1857 Seaboard RR?

The structure is 277 ft (84.4 m) long with a longest span of 60 ft (18.2 m) and a deck 33 ft wide.

Who owns US1 Nbl over SR1857 Seaboard RR?

It is owned by the State Highway Agency.