US Bridges

SR1145 over Prong Dan River

FairPosted for load

Rockingham County, North Carolina · 0.2 Mi. N. Jct. SR1188 · Structure no. 000000001570220

Built
1965
60 years old
Condition
Fair
inspected December 2023
Type
Channel Beam
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
700
2022 count
Owner
State
State Highway Agency

About this bridge

SR1145 over Prong Dan River is a prestressed concrete channel beam carrying SR1145 over Prong Dan River in Rockingham County, North Carolina. It was built in 1965, so it is 60 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 700 vehicles a day, roughly 6% of them trucks, projected to reach 1,400 by 2040. The structure is 31 ft (9.4 m) long and 25 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR1145
CrossesProng Dan River
Location0.2 Mi. N. Jct. SR1188
RouteState Highway 1145
CountyRockingham County
StateNorth Carolina
Coordinates36.37411, -79.96372
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating22.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length31 ft (9.4 m)
Longest span30 ft (9.1 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic700 (2022)
Projected traffic1,400 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 SR1145 over Prong Dan River built?

It was built in 1965, making it 60 years old in 2025.

What condition is SR1145 over Prong Dan 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 December 2023.

How much traffic does SR1145 over Prong Dan River carry?

About 700 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR1145 over Prong Dan River?

The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9.1 m) and a deck 25 ft wide.

Who owns SR1145 over Prong Dan River?

It is owned by the State Highway Agency.