US Bridges

SR3346 over Winston Salem S.B. RR

Fair

Davidson County, North Carolina · 0.2 Mi. S. Jct. SR3345 · Structure no. 000000000570025

Built
1936
89 years old
Condition
Fair
inspected March 2024
Type
Tee Beam
Concrete
Length
143 ft
3 main spans
Daily traffic
12,500
2022 count
Owner
State
State Highway Agency

About this bridge

SR3346 over Winston Salem S.B. RR is a concrete tee beam carrying SR3346 over Winston Salem S.B. RR in Davidson County, North Carolina. It was built in 1936, so it is 89 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 5 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 12,500 vehicles a day, roughly 12% of them trucks, projected to reach 25,000 by 2040. The structure is 143 ft (43.5 m) long and 48 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR3346
CrossesWinston Salem S.B. RR
Location0.2 Mi. S. Jct. SR3345
RouteState Highway 3346
CountyDavidson County
StateNorth Carolina
Coordinates35.81213, -80.26663
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating24.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length143 ft (43.5 m)
Longest span46 ft (14 m)
Deck width48 ft (14.7 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,500 (2022)
Projected traffic25,000 by 2040
Trucks12%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR3346 over Winston Salem S.B. RR built?

It was built in 1936, making it 89 years old in 2025.

What condition is SR3346 over Winston Salem S.B. RR 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 March 2024.

How much traffic does SR3346 over Winston Salem S.B. RR carry?

About 12,500 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is SR3346 over Winston Salem S.B. RR?

The structure is 143 ft (43.5 m) long with a longest span of 46 ft (14 m) and a deck 48 ft wide.

Who owns SR3346 over Winston Salem S.B. RR?

It is owned by the State Highway Agency.