Structure 8104 · Sumter County, SC

US 76/us 378 EB over Wateree River

Carries US 76/us 378 EB over Wateree River, 17 Mi W Of Sumter.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,670 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

2,670 ft end to end, longest span 210 ft: about 7.4 football fields. 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.

Built198739 years old
Length2669.9 ft813.8 m
Daily traffic9,350counted 2023
Last inspectedJuly 2024every 24 months

Location

StateSouth Carolina
CountySumter
Location17 Mi W Of Sumter
CarriesUS 76/us 378 EB
CrossesWateree River
Coordinates33.94700, -80.62754

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length2669.9 ft (813.8 m)
Max Span210.0 ft (64 m)
Deck Width43.3 ft (13.2 m)
Deck Area10742.2 sq m
Main Spans6
Year Built1987

Traffic

Avg Daily Traffic9,350 (2023)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000008104

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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