Structure 5I01400005 · Blount County, TN

Nfa 2397 over I140

Carries Nfa 2397 over I140, 1.16 M SE Knox Co Line.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT358 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

358 ft end to end, longest span 184 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.

Built199234 years old
Length357.9 ft109.1 m
Daily traffic2,454counted 2021
Last inspectedApril 2023every 24 months

Location

StateTennessee
CountyBlount
Location1.16 M SE Knox Co Line
CarriesNfa 2397
CrossesI140
Coordinates35.84241, -83.98580

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length357.9 ft (109.1 m)
Max Span184.1 ft (56.1 m)
Deck Width44.0 ft (13.4 m)
Deck Area1461.9 sq m
Main Spans2
Year Built1992

Traffic

Avg Daily Traffic2,454 (2021)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge5

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number05I01400005

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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