Structure 45I00810016 · Jefferson County, TN

I81 over Nfa 2518 Hardy RD

Carries I81 over Nfa 2518 Hardy RD, .78 Mi From Hamblen Co LN.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT95 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

95 ft end to end. Lengths and the car 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.

Built196759 years old
Length95.5 ft29.1 m
Daily traffic49,004counted 2021
Last inspectedJune 2024every 24 months

Location

StateTennessee
CountyJefferson
Location.78 Mi From Hamblen Co LN
CarriesI81
CrossesNfa 2518 Hardy RD
Coordinates36.13066, -83.30769

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length95.5 ft (29.1 m)
Max Span91.9 ft (28 m)
Deck Width40.7 ft (12.4 m)
Deck Area360.8 sq m
Main Spans1
Year Built1967

Traffic

Avg Daily Traffic49,004 (2021)
Truck Traffic6%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number45I00810016

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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