US Bridges

SR4325 over Southern Railroad

Fair

Forsyth County, North Carolina · 0.2 Mi. S. Jct. I40 Bus. · Structure no. 000000000670126

Built
1984
41 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
193 ft
4 main spans
Daily traffic
14,500
2022 count
Owner
State
State Highway Agency

About this bridge

SR4325 over Southern Railroad is a prestressed concrete stringer/multi-beam or girder carrying SR4325 over Southern Railroad in Forsyth County, North Carolina. It was built in 1984, so it is 41 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.

It carries about 14,500 vehicles a day, roughly 7% of them trucks, projected to reach 29,000 by 2040. The structure is 193 ft (58.8 m) long and 84 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR4325
CrossesSouthern Railroad
Location0.2 Mi. S. Jct. I40 Bus.
RouteState Highway 4325
CountyForsyth County
StateNorth Carolina
Coordinates36.09316, -80.22764
Functional classUrban Collector

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.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length193 ft (58.8 m)
Longest span63 ft (19.2 m)
Deck width84 ft (25.7 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,500 (2022)
Projected traffic29,000 by 2040
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR4325 over Southern Railroad built?

It was built in 1984, making it 41 years old in 2025.

What condition is SR4325 over Southern Railroad 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 September 2024.

How much traffic does SR4325 over Southern Railroad carry?

About 14,500 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is SR4325 over Southern Railroad?

The structure is 193 ft (58.8 m) long with a longest span of 63 ft (19.2 m) and a deck 84 ft wide.

Who owns SR4325 over Southern Railroad?

It is owned by the State Highway Agency.