Structure 16021370001 · Coffee County, TN

Nfa 2137 (sa 1619) over Mud Creek

Carries Nfa 2137 (sa 1619) over Mud Creek, 2 Mi From Ellam RD.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 31 ft across with 2 openings. 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, so those are drawn as typical for a culvert.

Built196462 years old
Length30.5 ft9.3 m
Daily traffic129counted 2021
Last inspectedMarch 2024every 24 months

Location

StateTennessee
CountyCoffee
Location2 Mi From Ellam RD
CarriesNfa 2137 (sa 1619)
CrossesMud Creek
Coordinates35.60300, -86.02548

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length30.5 ft (9.3 m)
Max Span11.2 ft (3.4 m)
Deck Width23.3 ft (7.1 m)
Deck Area66.0 sq m
Main Spans2
Year Built1964

Traffic

Avg Daily Traffic129 (2021)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number16021370001

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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