US Bridges

SR1509 over Prong of Grants Creek

Good

Rowan County, North Carolina · 100 Ft. S. Jct. SR1510 · Structure no. 000000001590212

Built
1990
35 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete Continuous
Length
40 ft
4 main spans
Daily traffic
4,300
2022 count
Owner
State
State Highway Agency

About this bridge

SR1509 over Prong of Grants Creek is a concrete continuous culvert carrying SR1509 over Prong of Grants Creek in Rowan County, North Carolina. It was built in 1990, so it is 35 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,300 vehicles a day, roughly 7% of them trucks, projected to reach 8,600 by 2040. The structure is 40 ft (12.1 m) long. If it were closed, the detour would be 2.5 mi (4 km).

CarriesSR1509
CrossesProng of Grants Creek
Location100 Ft. S. Jct. SR1510
RouteState Highway 1509
Coordinates35.59318, -80.58654
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.9 US tons
Inventory rating62.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length40 ft (12.1 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,300 (2022)
Projected traffic8,600 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1509 over Prong of Grants Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is SR1509 over Prong of Grants Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does SR1509 over Prong of Grants Creek carry?

About 4,300 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is SR1509 over Prong of Grants Creek?

The structure is 40 ft (12.1 m) long with a longest span of 9 ft (2.7 m).

Who owns SR1509 over Prong of Grants Creek?

It is owned by the State Highway Agency.