Structure 17691 · Cass County, IA

Ia 48 over Baughmans Creek

Carries Ia 48 over Baughmans Creek, 0.2 Mi. S Of Jct. Ia 92.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT103 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

103 ft end to end, longest span 39 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.

Built197353 years old
Length103.0 ft31.4 m
Daily traffic1,570counted 2022
Last inspectedJune 2024every 24 months

Location

StateIowa
CountyCass
Location0.2 Mi. S Of Jct. Ia 92
CarriesIa 48
CrossesBaughmans Creek
Coordinates41.23160, -95.13719

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length103.0 ft (31.4 m)
Max Span39.0 ft (11.9 m)
Deck Width41.0 ft (12.5 m)
Deck Area392.5 sq m
Main Spans3
Year Built1973

Traffic

Avg Daily Traffic1,570 (2022)
Truck Traffic13%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000017691

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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