US Bridges

US501S over Little River(lake)

Fair

Durham County, North Carolina · 0.5MI.N.JCT SR1475 · Structure no. 000000000630058

Built
1967
58 years old, rebuilt 1985
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
190 ft
3 main spans
Daily traffic
7,500
2021 count
Owner
State
State Highway Agency

About this bridge

US501S over Little River(lake) is a prestressed concrete stringer/multi-beam or girder carrying US501S over Little River(lake) in Durham County, North Carolina. It was built in 1967 and reconstructed in 1985, so it is 58 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 7,500 vehicles a day, roughly 8% of them trucks, projected to reach 15,000 by 2040. The structure is 190 ft (57.9 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS501S
CrossesLittle River(lake)
Location0.5MI.N.JCT SR1475
RouteU.S. Route 501
Coordinates36.13905, -78.90586
Functional classRural Minor Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20 + Mod
Structure length190 ft (57.9 m)
Longest span58 ft (17.6 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,500 (2021)
Projected traffic15,000 by 2040
Trucks8%
Lanes on structure2
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 US501S over Little River(lake) built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1985.

What condition is US501S over Little River(lake) 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 February 2024.

How much traffic does US501S over Little River(lake) carry?

About 7,500 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is US501S over Little River(lake)?

The structure is 190 ft (57.9 m) long with a longest span of 58 ft (17.6 m) and a deck 42 ft wide.

Who owns US501S over Little River(lake)?

It is owned by the State Highway Agency.