Structure 80520 · Carroll County, IN

SR 25 over US 421

Carries SR 25 over US 421, 03.58 S SR 218.

Overall conditionGood

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

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT109 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9 · sets the ratingSubstructure 8/9

109 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built201313 years old
Length109.3 ft33.3 m
Daily traffic4,700counted 2006
Last inspectedMarch 2023every 24 months

Location

StateIndiana
CountyCarroll
Location03.58 S SR 218
CarriesSR 25
CrossesUS 421
Coordinates40.56733, -86.65852

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length109.3 ft (33.3 m)
Max Span107.3 ft (32.7 m)
Deck Width44.3 ft (13.5 m)
Deck Area449.6 sq m
Main Spans1
Year Built2013

Traffic

Avg Daily Traffic4,700 (2006)
Truck Traffic15%
Lanes On Bridge2
Lanes Under Bridge3

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number080520

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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