Structure 41S61750001 · Hickman County, TN

Nfa 944 (sa 4113) over Piney River

Carries Nfa 944 (sa 4113) over Piney River, 3 M North Of Nunnelly.

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 FT462 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

462 ft end to end, longest span 53 ft: about 6 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.

Built195076 years old
Length461.9 ft140.8 m
Daily traffic982counted 2021
Last inspectedSeptember 2023every 24 months

Location

StateTennessee
CountyHickman
Location3 M North Of Nunnelly
CarriesNfa 944 (sa 4113)
CrossesPiney River
Coordinates35.91055, -87.46850

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length461.9 ft (140.8 m)
Max Span53.1 ft (16.2 m)
Deck Width26.6 ft (8.1 m)
Deck Area1140.5 sq m
Main Spans13
Year Built1950

Traffic

Avg Daily Traffic982 (2021)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number41S61750001

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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