Structure 27091 · Hardin County, IA

US 65 over S. Fork Iowa River

Carries US 65 over S. Fork Iowa River, 0.6 Mi N Of N Jct Ia 175.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT133 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

133 ft end to end, longest span 51 ft. Lengths and the semi-truck 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.

Built200719 years old
Length132.9 ft40.5 m
Daily traffic1,970counted 2022
Last inspectedJuly 2023every 24 months

Location

StateIowa
CountyHardin
Location0.6 Mi N Of N Jct Ia 175
CarriesUS 65
CrossesS. Fork Iowa River
Coordinates42.36968, -93.26112

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length132.9 ft (40.5 m)
Max Span50.9 ft (15.5 m)
Deck Width43.3 ft (13.2 m)
Deck Area534.6 sq m
Main Spans3
Year Built2007

Traffic

Avg Daily Traffic1,970 (2022)
Truck Traffic19%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical5 — Stable for scour
Structure Number000000000027091

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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