Structure 40730 · DeKalb County, IN

I-69 SB over Cedar Creek

Carries I-69 SB over Cedar Creek, 00.22 N US 6.

Overall conditionGood

Set by its lowest-rated component: Substructure at 8 of 9.

How ratings work
Deck9/9 · Excellent
Superstructure9/9 · Excellent
Substructuresets the rating8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT79 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 9/9Substructure 8/9 · sets the rating

79 ft end to end, longest span 30 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.

Built1963rebuilt 2021
Length79.4 ft24.2 m
Daily traffic13,726counted 2021
Last inspectedAugust 2023every 24 months

Location

StateIndiana
CountyDeKalb
Location00.22 N US 6
CarriesI-69 SB
CrossesCedar Creek
Coordinates41.44255, -85.05390

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length79.4 ft (24.2 m)
Max Span30.2 ft (9.2 m)
Deck Width58.1 ft (17.7 m)
Deck Area428.3 sq m
Main Spans3
Year Built1963 (reconstructed 2021)

Traffic

Avg Daily Traffic13,726 (2021)
Truck Traffic24%
Lanes On Bridge3

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number040730

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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