Structure 2666 · Berkeley County, SC

S-16/jedburg RD over Miller Dam Branch

Carries S-16/jedburg RD over Miller Dam Branch, 12.2mi SW Moncks Corner.

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 overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT42 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

42 ft end to end, longest span 14 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 slab bridge.

Built195868 years old
Length42.0 ft12.8 m
Daily traffic11,700counted 2023
Last inspectedOctober 2024every 24 months

Location

StateSouth Carolina
CountyBerkeley
Location12.2mi SW Moncks Corner
CarriesS-16/jedburg RD
CrossesMiller Dam Branch
Coordinates33.10068, -80.19221

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length42.0 ft (12.8 m)
Max Span14.1 ft (4.3 m)
Deck Width27.6 ft (8.4 m)
Deck Area107.5 sq m
Main Spans3
Year Built1958

Traffic

Avg Daily Traffic11,700 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalUnknown
Structure Number000000000002666

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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