US Bridges

US1N. over Deep River

Fair

Chatham County, North Carolina · 0.47 Mi. S. Jct. SR1012 · Structure no. 000000000370477

Built
1997
28 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
840 ft
9 main spans
Daily traffic
13,750
2020 count
Owner
State
State Highway Agency

About this bridge

US1N. over Deep River is a prestressed concrete continuous stringer/multi-beam or girder carrying US1N. over Deep River in Chatham 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 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 13,750 vehicles a day, roughly 14% of them trucks, projected to reach 27,500 by 2040. The structure is 840 ft (256 m) long and 49 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUS1N.
CrossesDeep River
Location0.47 Mi. S. Jct. SR1012
RouteU.S. Route 1
CountyChatham County
StateNorth Carolina
Coordinates35.61953, -79.09402
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
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 rating99 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans9 (+3 approach)
Design loadHS 20 + Mod
Structure length840 ft (256 m)
Longest span129 ft (39.3 m)
Deck width49 ft (14.9 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,750 (2020)
Projected traffic27,500 by 2040
Trucks14%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US1N. over Deep River built?

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

What condition is US1N. over Deep 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 August 2023.

How much traffic does US1N. over Deep River carry?

About 13,750 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is US1N. over Deep River?

The structure is 840 ft (256 m) long with a longest span of 129 ft (39.3 m) and a deck 49 ft wide.

Who owns US1N. over Deep River?

It is owned by the State Highway Agency.