Structure 120A0040001 · Chester County, TN

Nfa A004 over Clover Creek

Carries Nfa A004 over Clover Creek, 1.3 Mi NW Jct Sr100&sr125.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT51 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

51 ft end to end, longest span 17 ft. 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 channel-beam bridge.

Built196561 years old
Length50.9 ft15.5 m
Daily traffic70counted 2020
Last inspectedJune 2023every 24 months

Location

StateTennessee
CountyChester
Location1.3 Mi NW Jct Sr100&sr125
CarriesNfa A004
CrossesClover Creek
Coordinates35.40217, -88.82017

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length50.9 ft (15.5 m)
Max Span17.1 ft (5.2 m)
Deck Width22.0 ft (6.7 m)
Deck Area103.8 sq m
Main Spans3
Year Built1965

Traffic

Avg Daily Traffic70 (2020)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical3 — Scour critical
Structure Number120A0040001

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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