Structure 1915 · Anderson County, SC

C-4-989 over Broad Mouth Crk

Carries C-4-989 over Broad Mouth Crk, 15.9 Mi SE Anderson.

Overall conditionPoor

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

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT66 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 5/9

66 ft end to end, longest span 50 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 through truss.

Built195373 years old
Length65.9 ft20.1 m
Daily traffic125counted 2023
Last inspectedNovember 2024every 12 months

Location

StateSouth Carolina
CountyAnderson
Location15.9 Mi SE Anderson
CarriesC-4-989
CrossesBroad Mouth Crk
Coordinates34.47334, -82.36959

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length65.9 ft (20.1 m)
Max Span49.5 ft (15.1 m)
Deck Width15.7 ft (4.8 m)
Deck Area96.5 sq m
Main Spans2
Year Built1953

Traffic

Avg Daily Traffic125 (2023)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000001915

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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