Structure 19I00240311 · Davidson County, TN

I24 over Collins Creek

Carries I24 over Collins Creek, Bell RD Rp / Collins CR.

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 FT54 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 54 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.

Built1958rebuilt 1991
Length54.1 ft16.5 m
Daily traffic—reported figure implausible
Last inspectedOctober 2023every 24 months

Location

StateTennessee
CountyDavidson
LocationBell RD Rp / Collins CR
CarriesI24
CrossesCollins Creek
Coordinates36.04544, -86.66029

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length54.1 ft (16.5 m)
Max Span12.1 ft (3.7 m)
Deck Area272.2 sq m
Main Spans3
Year Built1958 (reconstructed 1991)

Traffic

Avg Daily Traffic155,629 (2021)
That is about 51,876 vehicles per lane per day — beyond what any U.S. road carries (the busiest freeways run about 25,000–30,000). It is almost certainly a data-entry error in the National Bridge Inventory, so we leave this bridge out of traffic rankings.
Truck Traffic7%
Lanes On Bridge3

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number19I00240311

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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