Structure 94047390001 · Williamson County, TN

Fau 4739 over Watson Branch

Carries Fau 4739 over Watson Branch, On River Oaks BLVD.

Overall conditionGood

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

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT50 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 50 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.

Built198937 years old
Length49.9 ft15.2 m
Daily traffic24,014counted 2021
Last inspectedJuly 2023every 24 months

Location

StateTennessee
CountyWilliamson
LocationOn River Oaks BLVD
CarriesFau 4739
CrossesWatson Branch
Coordinates35.90766, -86.83488

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length49.9 ft (15.2 m)
Max Span15.1 ft (4.6 m)
Deck Area111.0 sq m
Main Spans3
Year Built1989

Traffic

Avg Daily Traffic24,014 (2021)
Truck Traffic4%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number94047390001

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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