Structure 14311 · Benton County, IA

US 218 over Wildcat Creek

Carries US 218 over Wildcat Creek, 2.0 Mi. N Of Jct SR E44.

Overall conditionGood

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

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT91 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

91 ft end to end, longest span 35 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.

Built201610 years old
Length90.9 ft27.7 m
Daily traffic2,690counted 2022
Last inspectedDecember 2024every 24 months

Location

StateIowa
CountyBenton
Location2.0 Mi. N Of Jct SR E44
CarriesUS 218
CrossesWildcat Creek
Coordinates42.03728, -92.02891

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length90.9 ft (27.7 m)
Max Span35.1 ft (10.7 m)
Deck Width47.2 ft (14.4 m)
Deck Area398.9 sq m
Main Spans3
Year Built2016

Traffic

Avg Daily Traffic2,690 (2022)
Truck Traffic18%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000014311

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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