US Bridges

US15 501 over Robertsons Creek

Fair

Chatham County, North Carolina · 0.15 Mi. S. Jct. SR1949 · Structure no. 000000000370017

Built
1954
71 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete
Length
71 ft
2 main spans
Daily traffic
10,500
2021 count
Owner
State
State Highway Agency

About this bridge

US15 501 over Robertsons Creek is a concrete tee beam carrying US15 501 over Robertsons Creek in Chatham County, North Carolina. It was built in 1954, so it is 71 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 10,500 vehicles a day, roughly 8% of them trucks, projected to reach 21,000 by 2040. The structure is 71 ft (21.6 m) long and 33 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS15 501
CrossesRobertsons Creek
Location0.15 Mi. S. Jct. SR1949
RouteU.S. Route 15
Coordinates35.71609, -79.17884
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 inspectionAugust 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.9 US tons
Inventory rating31 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length71 ft (21.6 m)
Longest span34 ft (10.3 m)
Deck width33 ft (10 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2021)
Projected traffic21,000 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 US15 501 over Robertsons Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is US15 501 over Robertsons Creek 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 US15 501 over Robertsons Creek carry?

About 10,500 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is US15 501 over Robertsons Creek?

The structure is 71 ft (21.6 m) long with a longest span of 34 ft (10.3 m) and a deck 33 ft wide.

Who owns US15 501 over Robertsons Creek?

It is owned by the State Highway Agency.