Structure 231 · Chesterfield County, SC

Sc 151 SB over Big Sandy Creek

Carries Sc 151 SB over Big Sandy Creek, 7.4 Mi NW Of Mcbee.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT88 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

88 ft end to end, longest span 22 ft. Lengths and the car 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.

Built1926rebuilt 2001
Length87.9 ft26.8 m
Daily traffic3,300counted 2023
Last inspectedDecember 2023every 24 months

Location

StateSouth Carolina
CountyChesterfield
Location7.4 Mi NW Of Mcbee
CarriesSc 151 SB
CrossesBig Sandy Creek
Coordinates34.54192, -80.35191

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length87.9 ft (26.8 m)
Max Span22.0 ft (6.7 m)
Deck Width49.9 ft (15.2 m)
Deck Area407.4 sq m
Main Spans4
Year Built1926 (reconstructed 2001)

Traffic

Avg Daily Traffic3,300 (2023)
Truck Traffic27%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000000231

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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