Structure 43017980001 · Humphreys County, TN

Nfa 1798 (sa 4315) over Baptist Branch

Carries Nfa 1798 (sa 4315) over Baptist Branch, 2 M. NE Sr230..

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT52 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 52 ft across with 3 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.

Built196066 years old
Length51.8 ft15.8 m
Daily traffic278counted 2021
Last inspectedOctober 2023every 24 months

Location

StateTennessee
CountyHumphreys
Location2 M. NE Sr230.
CarriesNfa 1798 (sa 4315)
CrossesBaptist Branch
Coordinates35.98421, -87.64146

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length51.8 ft (15.8 m)
Max Span15.1 ft (4.6 m)
Deck Width26.2 ft (8 m)
Deck Area126.4 sq m
Main Spans3
Year Built1960

Traffic

Avg Daily Traffic278 (2021)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number43017980001

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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