Structure 33I00750004 · Hamilton County, TN

Fau 8 Sbl over I75

Carries Fau 8 Sbl over I75, 1 Mi N Of Ga State Line.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT212 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

212 ft end to end, longest span 79 ft: 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 box-beam bridge.

Built195967 years old
Length211.9 ft64.6 m
Daily traffic27,638counted 2021
Last inspectedJuly 2024every 24 months

Location

StateTennessee
CountyHamilton
Location1 Mi N Of Ga State Line
CarriesFau 8 Sbl
CrossesI75
Coordinates34.98995, -85.20347

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length211.9 ft (64.6 m)
Max Span79.4 ft (24.2 m)
Deck Width46.9 ft (14.3 m)
Deck Area923.8 sq m
Main Spans4
Year Built1959

Traffic

Avg Daily Traffic27,638 (2021)
Truck Traffic7%
Lanes On Bridge3
Lanes Under Bridge6

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number33I00750004

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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