Structure 3681 · Polk County, IA

E. Mckinley AVE over Yeader Creek

Carries E. Mckinley AVE over Yeader Creek, 078242700.

Overall conditionGood

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

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT42 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 42 ft across with 2 openings. 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, so those are drawn as typical for a culvert.

Built198442 years old
Length42.0 ft12.8 m
Daily traffic4,088counted 2022
Last inspectedJuly 2023every 24 months

Location

StateIowa
CountyPolk
Location078242700
CarriesE. Mckinley AVE
CrossesYeader Creek
Coordinates41.54068, -93.59790

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length42.0 ft (12.8 m)
Max Span20.0 ft (6.1 m)
Deck Width44.0 ft (13.4 m)
Deck Area171.5 sq m
Main Spans2
Year Built1984

Traffic

Avg Daily Traffic4,088 (2022)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000003681

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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