Structure 36SR1280005 · Hardin County, TN

Nfa 2333 over Overflow

Carries Nfa 2333 over Overflow, Near Savannah.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT142 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

142 ft end to end, longest span 29 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 tee-beam bridge.

Built195175 years old
Length142.4 ft43.4 m
Daily traffic1,254counted 2021
Last inspectedApril 2024every 24 months

Location

StateTennessee
CountyHardin
LocationNear Savannah
CarriesNfa 2333
CrossesOverflow
Coordinates35.25244, -88.20680

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length142.4 ft (43.4 m)
Max Span28.5 ft (8.7 m)
Deck Width26.9 ft (8.2 m)
Deck Area355.9 sq m
Main Spans5
Year Built1951

Traffic

Avg Daily Traffic1,254 (2021)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical3 — Scour critical
Structure Number36SR1280005

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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