Structure 826 · Abbeville County, SC

Sc 81 over Rocky River

Carries Sc 81 over Rocky River, 14.5mi NW Abbev.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT293 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 8/9Substructure 6/9 · sets the rating

293 ft end to end, longest span 75 ft: about 4 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.

Built1938rebuilt 1982
Length293.0 ft89.3 m
Daily traffic1,600counted 2023
Last inspectedSeptember 2023every 24 months

Location

StateSouth Carolina
CountyAbbeville
Location14.5mi NW Abbev
CarriesSc 81
CrossesRocky River
Coordinates34.21255, -82.63019

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length293.0 ft (89.3 m)
Max Span75.1 ft (22.9 m)
Deck Width47.2 ft (14.4 m)
Deck Area1285.9 sq m
Main Spans5
Year Built1938 (reconstructed 1982)

Traffic

Avg Daily Traffic1,600 (2023)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000000826

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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