Structure 236821 · Mahaska County, IA

Local over Cedar Creek

Carries Local over Cedar Creek, 076140101.

Overall conditionGood

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

How ratings work
Superstructuresets the rating7/9 · 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 FT50 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 7/9Substructure 7/9

50 ft end to end, longest span 24 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 deck arch.

Built199333 years old
Length49.9 ft15.2 m
Daily traffic5counted 2022
Last inspectedDecember 2021every 48 months

Location

StateIowa
CountyMahaska
Location076140101
CarriesLocal
CrossesCedar Creek
Coordinates41.42323, -92.42239

Physical Characteristics

MaterialConcrete Continuous
DesignArch - Deck
Total Length49.9 ft (15.2 m)
Max Span24.0 ft (7.3 m)
Deck Width43.0 ft (13.1 m)
Deck Area199.1 sq m
Main Spans2
Year Built1993

Traffic

Avg Daily Traffic5 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2021
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000236821

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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