US Bridges

SR1780 over Country Line Creek

PoorPosted for load

Caswell County, North Carolina · 0.7 Mi. E. Jct. US158 · Structure no. 000000000330117

Built
1923
102 years old
Condition
Poor
inspected November 2023
Type
Tee Beam
Concrete
Length
224 ft
6 main spans
Daily traffic
100
1981 count
Owner
State
State Highway Agency

About this bridge

SR1780 over Country Line Creek is a concrete tee beam carrying SR1780 over Country Line Creek in Caswell County, North Carolina. It was built in 1923, so it is 102 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 6% of them trucks, projected to reach 200 by 2040. The structure is 224 ft (68.2 m) long and 23 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR1780
CrossesCountry Line Creek
Location0.7 Mi. E. Jct. US158
RouteState Highway 1780
Coordinates36.40329, -79.2991
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating31 US tons
Inventory rating18 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length224 ft (68.2 m)
Longest span36 ft (10.9 m)
Deck width23 ft (7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (1981)
Projected traffic200 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1780 over Country Line Creek built?

It was built in 1923, making it 102 years old in 2025.

What condition is SR1780 over Country Line Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

How much traffic does SR1780 over Country Line Creek carry?

About 100 vehicles per day (1981 count), of which roughly 6% are trucks.

How long is SR1780 over Country Line Creek?

The structure is 224 ft (68.2 m) long with a longest span of 36 ft (10.9 m) and a deck 23 ft wide.

Who owns SR1780 over Country Line Creek?

It is owned by the State Highway Agency.