Structure 89S43220003 · Warren County, TN

Nfa 1123 (sa 8911) over Hickory Grove Branch

Carries Nfa 1123 (sa 8911) over Hickory Grove Branch, 4 Mi North Of US 70s.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT58 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 58 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.

Built199135 years old
Length58.1 ft17.7 m
Daily traffic1,117counted 2021
Last inspectedApril 2023every 24 months

Location

StateTennessee
CountyWarren
Location4 Mi North Of US 70s
CarriesNfa 1123 (sa 8911)
CrossesHickory Grove Branch
Coordinates35.74329, -85.83587

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length58.1 ft (17.7 m)
Max Span18.0 ft (5.5 m)
Deck Width33.5 ft (10.2 m)
Deck Area180.5 sq m
Main Spans3
Year Built1991

Traffic

Avg Daily Traffic1,117 (2021)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number89S43220003

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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