Structure 19SR3860001 · Davidson County, TN

Fau 4451 over State Route 386

Carries Fau 4451 over State Route 386, Near Goodlettsville.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT274 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

274 ft end to end, longest span 151 ft: about 4 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 box-beam bridge.

Built198937 years old
Length274.0 ft83.5 m
Daily traffic17,418counted 2021
Last inspectedMay 2023every 24 months

Location

StateTennessee
CountyDavidson
LocationNear Goodlettsville
CarriesFau 4451
CrossesState Route 386
Coordinates36.30717, -86.69483

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length274.0 ft (83.5 m)
Max Span150.9 ft (46 m)
Deck Width107.9 ft (32.9 m)
Deck Area2747.2 sq m
Main Spans2
Year Built1989

Traffic

Avg Daily Traffic17,418 (2021)
Truck Traffic7%
Lanes On Bridge7
Lanes Under Bridge6

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number19SR3860001

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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