Structure 54SR1630011 · McMinn County, TN

Fas 163 over Conasauga Creek

Carries Fas 163 over Conasauga Creek, .6 Mi.n.of Polk Co.line.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT300 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9Substructure 4/9 · sets the rating

300 ft end to end, longest span 43 ft: about 4 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 tee-beam bridge.

Built195868 years old
Length299.9 ft91.4 m
Daily traffic1,862counted 2021
Last inspectedApril 2023every 24 months

Location

StateTennessee
CountyMcMinn
Location.6 Mi.n.of Polk Co.line
CarriesFas 163
CrossesConasauga Creek
Coordinates35.27141, -84.57802

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length299.9 ft (91.4 m)
Max Span43.0 ft (13.1 m)
Deck Width34.4 ft (10.5 m)
Deck Area959.7 sq m
Main Spans10
Year Built1958

Traffic

Avg Daily Traffic1,862 (2021)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical3 — Scour critical
Structure Number54SR1630011

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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