Structure 47I00750067 · Knox County, TN

Fas 170 over Racoon Valley Rd. / I75

Carries Fas 170 over Racoon Valley Rd. / I75, 1.4 M NW Of Anderson Cl.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT234 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

234 ft end to end, longest span 68 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.

Built196066 years old
Length233.6 ft71.2 m
Daily traffic3,767counted 2021
Last inspectedJanuary 2025every 24 months

Location

StateTennessee
CountyKnox
Location1.4 M NW Of Anderson Cl
CarriesFas 170
CrossesRacoon Valley Rd. / I75
Coordinates36.10745, -84.02383

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length233.6 ft (71.2 m)
Max Span68.2 ft (20.8 m)
Deck Width49.9 ft (15.2 m)
Deck Area1082.2 sq m
Main Spans4
Year Built1960

Traffic

Avg Daily Traffic3,767 (2021)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number47I00750067

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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