Structure 27270 · Hardin County, IA

HWY 215 over Small Natural Stream

Carries HWY 215 over Small Natural Stream, 086190526.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure and Substructure at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructuresets the rating4/9 · Poor
Substructuresets the rating4/9 · Poor
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT44 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9Superstructure 4/9Substructure 4/9

44 ft end to end. 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 multi-beam bridge.

Built194878 years old
Length44.0 ft13.4 m
Daily traffic854counted 2022
Last inspectedFebruary 2024every 24 months

Location

StateIowa
CountyHardin
Location086190526
CarriesHWY 215
CrossesSmall Natural Stream
Coordinates42.28405, -93.08157

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length44.0 ft (13.4 m)
Max Span41.0 ft (12.5 m)
Deck Width31.8 ft (9.7 m)
Deck Area130.0 sq m
Main Spans1
Year Built1948

Traffic

Avg Daily Traffic854 (2022)
Truck Traffic26%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000027270

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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