Structure 7I00750019 · Campbell County, TN

Nfa 1280 (sa 0710) over I75

Carries Nfa 1280 (sa 0710) over I75, Exit 3.5 M N Of Sr63 Exit.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
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 FT131 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

131 ft end to end, longest span 65 ft. 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.

Built196561 years old
Length130.9 ft39.9 m
Daily traffic840counted 2021
Last inspectedAugust 2023every 24 months

Location

StateTennessee
CountyCampbell
LocationExit 3.5 M N Of Sr63 Exit
CarriesNfa 1280 (sa 0710)
CrossesI75
Coordinates36.41675, -84.28240

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length130.9 ft (39.9 m)
Max Span65.0 ft (19.8 m)
Deck Width34.4 ft (10.5 m)
Deck Area418.9 sq m
Main Spans2
Year Built1965

Traffic

Avg Daily Traffic840 (2021)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number07I00750019

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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