Structure 70SR0330015 · Polk County, TN

Nfa A037 over Old Sr-33 / Ocoee River

Carries Nfa A037 over Old Sr-33 / Ocoee River, .52 Mile West Of Benton.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT387 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

387 ft end to end, longest span 53 ft: about 5 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.

Built194680 years old
Length387.1 ft118 m
Daily traffic8,437counted 2021
Last inspectedJune 2024every 24 months

Location

StateTennessee
CountyPolk
Location.52 Mile West Of Benton
CarriesNfa A037
CrossesOld Sr-33 / Ocoee River
Coordinates35.16500, -84.67786

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length387.1 ft (118 m)
Max Span53.1 ft (16.2 m)
Deck Width34.4 ft (10.5 m)
Deck Area1,239 sq m
Main Spans11
Year Built1946

Traffic

Avg Daily Traffic8,437 (2021)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number70SR0330015

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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