Structure 90I00260042 · Washington County, TN

I26 Lt LN over 8th AVE (nfa A596)

Carries I26 Lt LN over 8th AVE (nfa A596), In Johnson City.

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 FT121 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

121 ft end to end, longest span 42 ft. 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.

Built197551 years old
Length121.1 ft36.9 m
Daily traffic55,938counted 2021
Last inspectedSeptember 2023every 24 months

Location

StateTennessee
CountyWashington
LocationIn Johnson City
CarriesI26 Lt LN
Crosses8th AVE (nfa A596)
Coordinates36.32782, -82.35683

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length121.1 ft (36.9 m)
Max Span42.0 ft (12.8 m)
Deck Width51.8 ft (15.8 m)
Deck Area583.0 sq m
Main Spans3
Year Built1975

Traffic

Avg Daily Traffic55,938 (2021)
Truck Traffic6%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number90I00260042

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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