Structure 31300660 · Whitfield County, GA

Tibbs Road over I-75

Carries Tibbs Road over I-75, In West Dalton.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT396 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

396 ft end to end, longest span 100 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 multi-beam bridge.

Built1963rebuilt 1980
Length396.0 ft120.7 m
Daily traffic3,730counted 2024
Last inspectedJune 2024every 24 months

Location

StateGeorgia
CountyWhitfield
LocationIn West Dalton
CarriesTibbs Road
CrossesI-75
Coordinates34.78242, -85.00062

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length396.0 ft (120.7 m)
Max Span100.1 ft (30.5 m)
Deck Width32.2 ft (9.8 m)
Deck Area1182.9 sq m
Main Spans5
Year Built1963 (reconstructed 1980)

Traffic

Avg Daily Traffic3,730 (2024)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000031300660

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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