Structure 7504 · Richland County, SC

US 76/sc 16 Con over Gills Creek

Carries US 76/sc 16 Con over Gills Creek, 3 Mi E Of Columbia.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT360 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

360 ft end to end, longest span 30 ft: about 5 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 slab bridge.

Built198145 years old
Length359.9 ft109.7 m
Daily traffic19,000counted 2023
Last inspectedFebruary 2024every 24 months

Location

StateSouth Carolina
CountyRichland
Location3 Mi E Of Columbia
CarriesUS 76/sc 16 Con
CrossesGills Creek
Coordinates33.98767, -80.97652

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length359.9 ft (109.7 m)
Max Span29.9 ft (9.1 m)
Deck Width76.4 ft (23.3 m)
Deck Area2556.0 sq m
Main Spans12
Year Built1981

Traffic

Avg Daily Traffic19,000 (2023)
Truck Traffic2%
Lanes On Bridge4

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000007504

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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