Structure 410A2950005 · Hickman County, TN

Nfa A320 over Beaver Dam Creek

Carries Nfa A320 over Beaver Dam Creek, 8 M W Of Centerville.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT81 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

81 ft end to end, longest span 39 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 tee-beam bridge.

Built196858 years old
Length81.0 ft24.7 m
Daily traffic30counted 2020
Last inspectedOctober 2023every 24 months

Location

StateTennessee
CountyHickman
Location8 M W Of Centerville
CarriesNfa A320
CrossesBeaver Dam Creek
Coordinates35.76489, -87.57940

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length81.0 ft (24.7 m)
Max Span39.0 ft (11.9 m)
Deck Width24.0 ft (7.3 m)
Deck Area180.3 sq m
Main Spans2
Year Built1968

Traffic

Avg Daily Traffic30 (2020)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical3 — Scour critical
Structure Number410A2950005

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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