Structure 735 · Jasper County, SC

US 321 over Rr Csxt

Carries US 321 over Rr Csxt, In Hardeeville.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT156 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

156 ft end to end, longest span 52 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 tee-beam bridge.

Built1936rebuilt 1973
Length155.8 ft47.5 m
Daily traffic4,600counted 2023
Last inspectedNovember 2023every 24 months

Location

StateSouth Carolina
CountyJasper
LocationIn Hardeeville
CarriesUS 321
CrossesRr Csxt
Coordinates32.28539, -81.08339

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length155.8 ft (47.5 m)
Max Span51.8 ft (15.8 m)
Deck Width47.2 ft (14.4 m)
Deck Area684 sq m
Main Spans3
Year Built1936 (reconstructed 1973)

Traffic

Avg Daily Traffic4,600 (2023)
Truck Traffic19%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000000735

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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