US Bridges

SR1730 over Prong Country Line Creek

Good

Caswell County, North Carolina · 0.3 Mi. E. Jct. SR1736 · Structure no. 000000000330105

Built
2005
20 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
100 ft
2 main spans
Daily traffic
150
2021 count
Owner
State
State Highway Agency

About this bridge

SR1730 over Prong Country Line Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying SR1730 over Prong Country Line Creek in Caswell County, North Carolina. It was built in 2005, so it is 20 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 150 vehicles a day, roughly 6% of them trucks, projected to reach 300 by 2040. The structure is 100 ft (30.4 m) long and 30 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSR1730
CrossesProng Country Line Creek
Location0.3 Mi. E. Jct. SR1736
RouteState Highway 1730
Coordinates36.34598, -79.2836
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 rating48 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length100 ft (30.4 m)
Longest span48 ft (14.6 m)
Deck width30 ft (9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2021)
Projected traffic300 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 SR1730 over Prong Country Line Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is SR1730 over Prong Country Line 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 May 2023.

How much traffic does SR1730 over Prong Country Line Creek carry?

About 150 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is SR1730 over Prong Country Line Creek?

The structure is 100 ft (30.4 m) long with a longest span of 48 ft (14.6 m) and a deck 30 ft wide.

Who owns SR1730 over Prong Country Line Creek?

It is owned by the State Highway Agency.