US Bridges

SR3392 over Prong Alamance Creek

Fair

Guilford County, North Carolina · 0.5 Mi. S. Jct. SR3393 · Structure no. 000000000810009

Built
1994
31 years old
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
100
2013 count
Owner
State
State Highway Agency

About this bridge

SR3392 over Prong Alamance Creek is a prestressed concrete slab carrying SR3392 over Prong Alamance Creek in Guilford County, North Carolina. It was built in 1994, so it is 31 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 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.

It carries about 100 vehicles a day, roughly 6% of them trucks, projected to reach 200 by 2040. The structure is 47 ft (14.3 m) long and 27 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR3392
CrossesProng Alamance Creek
Location0.5 Mi. S. Jct. SR3393
RouteState Highway 3392
Coordinates35.94108, -79.6904
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating62.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length47 ft (14.3 m)
Longest span44 ft (13.4 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2013)
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR3392 over Prong Alamance Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is SR3392 over Prong Alamance Creek 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 August 2024.

How much traffic does SR3392 over Prong Alamance Creek carry?

About 100 vehicles per day (2013 count), of which roughly 6% are trucks.

How long is SR3392 over Prong Alamance Creek?

The structure is 47 ft (14.3 m) long with a longest span of 44 ft (13.4 m) and a deck 27 ft wide.

Who owns SR3392 over Prong Alamance Creek?

It is owned by the State Highway Agency.