Structure 570106 · Davidson County, NC

Sr3345 over Southern Railway

Carries Sr3345 over Southern Railway, 0.2 Mi.s.jct.us29b & Us70.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT158 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

158 ft end to end, longest span 61 ft: about 2 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built195373 years old
Length157.8 ft48.1 m
Daily traffic14,000counted 2016
Last inspectedJune 2023every 24 months

Location

StateNorth Carolina
CountyDavidson
Location0.2 Mi.s.jct.us29b & Us70
CarriesSr3345
CrossesSouthern Railway
Coordinates35.81296, -80.26249

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length157.8 ft (48.1 m)
Max Span60.7 ft (18.5 m)
Deck Width47.9 ft (14.6 m)
Deck Area702.3 sq m
Main Spans3
Year Built1953

Traffic

Avg Daily Traffic14,000 (2016)
Truck Traffic6%
Lanes On Bridge3

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000570106

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

Nearby Bridges