Structure 120A1890001 · Chester County, TN

Nfa A189 over Dry Creek

Carries Nfa A189 over Dry Creek, 3.3 Mi SE Jct Sr106&sr365.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT53 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

53 ft end to end, longest span 19 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.

Built197353 years old
Length53.1 ft16.2 m
Daily traffic861counted 2021
Last inspectedJune 2023every 24 months

Location

StateTennessee
CountyChester
Location3.3 Mi SE Jct Sr106&sr365
CarriesNfa A189
CrossesDry Creek
Coordinates35.44053, -88.58017

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length53.1 ft (16.2 m)
Max Span19.0 ft (5.8 m)
Deck Width22.0 ft (6.7 m)
Deck Area108.5 sq m
Main Spans3
Year Built1973

Traffic

Avg Daily Traffic861 (2021)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number120A1890001

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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