Structure 190B9470001 · Davidson County, TN

Nfa C685 over Sugartree Creek

Carries Nfa C685 over Sugartree Creek, Cross Creek @sugartree RD.

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 FT69 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 69 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.

Built198640 years old
Length68.9 ft21 m
Daily traffic4,600counted 2020
Last inspectedJune 2023every 24 months

Location

StateTennessee
CountyDavidson
LocationCross Creek @sugartree RD
CarriesNfa C685
CrossesSugartree Creek
Coordinates36.10838, -86.82220

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length68.9 ft (21 m)
Max Span15.1 ft (4.6 m)
Deck Width39.0 ft (11.9 m)
Deck Area249.9 sq m
Main Spans3
Year Built1986

Traffic

Avg Daily Traffic4,600 (2020)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number190B9470001

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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