US Bridges

SR3143 over Prong Little Alamance Ck

Good

Guilford County, North Carolina · 0.3 Mi. N. Jct. SR3000 · Structure no. 000000000810359

Built
2006
19 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
41 ft
3 main spans
Daily traffic
3,700
2021 count
Owner
State
State Highway Agency

About this bridge

SR3143 over Prong Little Alamance Ck is a concrete continuous culvert carrying SR3143 over Prong Little Alamance Ck in Guilford County, North Carolina. It was built in 2006, so it is 19 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 3,700 vehicles a day, roughly 7% of them trucks, projected to reach 7,400 by 2040. The structure is 41 ft (12.4 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR3143
CrossesProng Little Alamance Ck
Location0.3 Mi. N. Jct. SR3000
RouteState Highway 3143
Coordinates36.04852, -79.66397
Functional classUrban 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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 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 rating90.9 US tons
Inventory rating70 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length41 ft (12.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,700 (2021)
Projected traffic7,400 by 2040
Trucks7%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR3143 over Prong Little Alamance Ck built?

It was built in 2006, making it 19 years old in 2025.

What condition is SR3143 over Prong Little Alamance Ck 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 2024.

How much traffic does SR3143 over Prong Little Alamance Ck carry?

About 3,700 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SR3143 over Prong Little Alamance Ck?

The structure is 41 ft (12.4 m) long with a longest span of 10 ft (3 m).

Who owns SR3143 over Prong Little Alamance Ck?

It is owned by the State Highway Agency.