US Bridges

SR3556 over Southern Railroad

Good

Buncombe County, North Carolina · 0.7 MI.W.JCT.US25 · Structure no. 000000000210672

Built
1992
33 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
176 ft
2 main spans
Daily traffic
14,500
2022 count
Owner
State
State Highway Agency

About this bridge

SR3556 over Southern Railroad is a steel stringer/multi-beam or girder carrying SR3556 over Southern Railroad in Buncombe County, North Carolina. It was built in 1992, so it is 33 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 14,500 vehicles a day, roughly 6% of them trucks, projected to reach 29,000 by 2040. The structure is 176 ft (53.6 m) long and 51 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSR3556
CrossesSouthern Railroad
Location0.7 MI.W.JCT.US25
RouteState Highway 3556
Coordinates35.56448, -82.55711
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating59 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length176 ft (53.6 m)
Longest span143 ft (43.5 m)
Deck width51 ft (15.4 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,500 (2022)
Projected traffic29,000 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed6.8 mi (11 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 SR3556 over Southern Railroad built?

It was built in 1992, making it 33 years old in 2025.

What condition is SR3556 over Southern Railroad 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 October 2024.

How much traffic does SR3556 over Southern Railroad carry?

About 14,500 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR3556 over Southern Railroad?

The structure is 176 ft (53.6 m) long with a longest span of 143 ft (43.5 m) and a deck 51 ft wide.

Who owns SR3556 over Southern Railroad?

It is owned by the State Highway Agency.