Structure 44320 · Boone County, IN

CR 800 Sco Line RD over I-74

Carries CR 800 Sco Line RD over I-74, 02.32 E SR 75.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT220 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

220 ft end to end, longest span 68 ft: about 3 semi-trucks nose to tail. Lengths and the semi-truck 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.

Built1963rebuilt 1987
Length219.8 ft67 m
Daily traffic244counted 2021
Last inspectedOctober 2024every 24 months

Location

StateIndiana
CountyBoone
Location02.32 E SR 75
CarriesCR 800 Sco Line RD
CrossesI-74
Coordinates39.92335, -86.58435

Physical Characteristics

MaterialConcrete Continuous
DesignStringer/Multi-beam
Total Length219.8 ft (67 m)
Max Span67.9 ft (20.7 m)
Deck Width29.2 ft (8.9 m)
Deck Area596.3 sq m
Main Spans4
Year Built1963 (reconstructed 1987)

Traffic

Avg Daily Traffic244 (2021)
Truck Traffic7%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number044320

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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