Structure 47I00750025 · Knox County, TN

I75 Rl&ll over I75 /sr-9 (clinton Hwy)

Carries I75 Rl&ll over I75 /sr-9 (clinton Hwy), At Sharps Gap Exchange.

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 FT180 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

180 ft end to end, longest span 94 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 multi-beam bridge.

Built1981rebuilt 2008
Length180.1 ft54.9 m
Daily traffic94,386counted 2021
Last inspectedJanuary 2025every 24 months

Location

StateTennessee
CountyKnox
LocationAt Sharps Gap Exchange
CarriesI75 Rl&ll
CrossesI75 /sr-9 (clinton Hwy)
Coordinates35.99848, -83.96025

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length180.1 ft (54.9 m)
Max Span94.2 ft (28.7 m)
Deck Width118.1 ft (36 m)
Deck Area1976.4 sq m
Main Spans2
Year Built1981 (reconstructed 2008)

Traffic

Avg Daily Traffic94,386 (2021)
Truck Traffic6%
Lanes On Bridge7
Lanes Under Bridge5

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number47I00750025

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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