Structure 32140 · Boone County, IN

US 421 over Finley Creek

Carries US 421 over Finley Creek, 01.14 S SR 32.

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 FT51 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 51 ft across. 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.

Built1931rebuilt 1986
Length50.9 ft15.5 m
Daily traffic7,488counted 2021
Last inspectedFebruary 2023every 24 months

Location

StateIndiana
CountyBoone
Location01.14 S SR 32
CarriesUS 421
CrossesFinley Creek
Coordinates40.02556, -86.27780

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length50.9 ft (15.5 m)
Max Span44.9 ft (13.7 m)
Deck Width46.9 ft (14.3 m)
Deck Area221.7 sq m
Main Spans1
Year Built1931 (reconstructed 1986)

Traffic

Avg Daily Traffic7,488 (2021)
Truck Traffic12%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number032140

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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