Structure 745 · Richland County, SC

US 1 over Rr Csxt

Carries US 1 over Rr Csxt, 10 Mi NE Of Columbia.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
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 FT197 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

197 ft end to end, longest span 53 ft: about 3 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 1976
Length196.9 ft60 m
Daily traffic33,100counted 2023
Last inspectedFebruary 2024every 24 months

Location

StateSouth Carolina
CountyRichland
Location10 Mi NE Of Columbia
CarriesUS 1
CrossesRr Csxt
Coordinates34.10111, -80.91444

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length196.9 ft (60 m)
Max Span53.5 ft (16.3 m)
Deck Width70.5 ft (21.5 m)
Deck Area1,290 sq m
Main Spans5
Year Built1936 (reconstructed 1976)

Traffic

Avg Daily Traffic33,100 (2023)
Truck Traffic2%
Lanes On Bridge4

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number000000000000745

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