Structure 86SR1070007 · Unicoi County, TN

Fas 107 over Indian Creek

Carries Fas 107 over Indian Creek, 4 M NE Jct Sr107&sr395.

Overall conditionPoor

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructuresets the rating4/9 · Poor
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT172 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 4/9 · sets the rating

172 ft end to end, longest span 33 ft: about 2 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.

Built192898 years old
Length171.9 ft52.4 m
Daily traffic4,155counted 2021
Last inspectedOctober 2024every 24 months

Location

StateTennessee
CountyUnicoi
Location4 M NE Jct Sr107&sr395
CarriesFas 107
CrossesIndian Creek
Coordinates36.19429, -82.34950

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length171.9 ft (52.4 m)
Max Span33.1 ft (10.1 m)
Deck Width34.4 ft (10.5 m)
Deck Area550.2 sq m
Main Spans5
Year Built1928

Traffic

Avg Daily Traffic4,155 (2021)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number86SR1070007

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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