Structure 3297 · Greenville County, SC

US 29 over C-23-75/60736071

Carries US 29 over C-23-75/60736071, City Of Greenville.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure6/9 · Satisfactory
Substructure5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,366 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 6/9Substructure 5/9

1,366 ft end to end, longest span 82 ft: about 3.8 football fields. 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.

Built196066 years old
Length1366.1 ft416.4 m
Daily traffic37,200counted 2023
Last inspectedSeptember 2024every 12 months

Location

StateSouth Carolina
CountyGreenville
LocationCity Of Greenville
CarriesUS 29
CrossesC-23-75/60736071
Coordinates34.84699, -82.39664

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length1366.1 ft (416.4 m)
Max Span82.0 ft (25 m)
Deck Width66.9 ft (20.4 m)
Deck Area8494.6 sq m
Main Spans5
Year Built1960

Traffic

Avg Daily Traffic37,200 (2023)
Truck Traffic4%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000003297

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.

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