Structure 29300220 · Upson County, GA

Hannahs Mill Road over Potato Creek

Carries Hannahs Mill Road over Potato Creek, NW Edge Of Thomaston.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 1 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating1/9 · Imminent Failure
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT224 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 1/9 · sets the rating

224 ft end to end: about 3 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 channel-beam bridge.

Built196660 years old
Length224.1 ft68.3 m
Daily traffic2,490counted 2024
Last inspectedFebruary 2024every 24 months

Location

StateGeorgia
CountyUpson
LocationNW Edge Of Thomaston
CarriesHannahs Mill Road
CrossesPotato Creek
Coordinates32.91900, -84.34694

Physical Characteristics

MaterialPrestressed Concrete
DesignChannel Beam
Total Length224.1 ft (68.3 m)
Max Span60.0 ft (18.3 m)
Deck Width25.3 ft (7.7 m)
Deck Area525.9 sq m
Main Spans1
Year Built1966

Traffic

Avg Daily Traffic2,490 (2024)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number000000029300220

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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