Structure 4800148 · Madison County, IN

CR 300e over Sly Fork

Carries CR 300e over Sly Fork, 00.30 S CR 600 S.

Overall conditionGood

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

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT71 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

71 ft end to end, longest span 28 ft. 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 slab bridge.

Built1974rebuilt 2014
Length71.2 ft21.7 m
Daily traffic957counted 2023
Last inspectedOctober 2024every 24 months

Location

StateIndiana
CountyMadison
Location00.30 S CR 600 S
CarriesCR 300e
CrossesSly Fork
Coordinates40.01515, -85.61484

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length71.2 ft (21.7 m)
Max Span27.9 ft (8.5 m)
Deck Width38.4 ft (11.7 m)
Deck Area253.9 sq m
Main Spans3
Year Built1974 (reconstructed 2014)

Traffic

Avg Daily Traffic957 (2023)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number4800148

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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