Structure 82I00260026 · Sullivan County, TN

I181 RT LN over SR 93

Carries I181 RT LN over SR 93, In Kingsport.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT232 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

232 ft end to end: 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 box-beam bridge.

Built198145 years old
Length232.0 ft70.7 m
Daily traffic24,661counted 2021
Last inspectedAugust 2024every 24 months

Location

StateTennessee
CountySullivan
LocationIn Kingsport
CarriesI181 RT LN
CrossesSR 93
Coordinates36.50000, -82.56333

Physical Characteristics

MaterialSteel
DesignBox Beam - Single/Spread
Total Length232.0 ft (70.7 m)
Max Span185.0 ft (56.4 m)
Deck Width51.8 ft (15.8 m)
Deck Area1117.1 sq m
Main Spans1
Year Built1981

Traffic

Avg Daily Traffic24,661 (2021)
Truck Traffic6%
Lanes On Bridge2
Lanes Under Bridge3

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number82I00260026

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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