Structure 29350180 · Upson County, GA

Triune Mill Road over Swift Creek

Carries Triune Mill Road over Swift Creek, 2 Mi SE Of Thomaston.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
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 FT96 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

96 ft end to end, longest span 32 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 tee-beam bridge.

Built196066 years old
Length96.1 ft29.3 m
Daily traffic440counted 2024
Last inspectedJanuary 2024every 24 months

Location

StateGeorgia
CountyUpson
Location2 Mi SE Of Thomaston
CarriesTriune Mill Road
CrossesSwift Creek
Coordinates32.86716, -84.27429

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length96.1 ft (29.3 m)
Max Span32.2 ft (9.8 m)
Deck Width27.9 ft (8.5 m)
Deck Area249.1 sq m
Main Spans3
Year Built1960

Traffic

Avg Daily Traffic440 (2024)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number000000029350180

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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