Structure 106781 · Cerro Gordo County, IA

290th ST over Ideal Creek

Carries 290th ST over Ideal Creek, 0.4 Mi. East Of Raven AVE.

Overall conditionGood

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

How ratings work
Culvertsets the rating9/9 · Excellent
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT40 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 9/9

A culvert 40 ft across with 3 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.

Built20215 years old
Length39.7 ft12.1 m
Daily traffic51counted 2022
Last inspectedJanuary 2024every 24 months

Location

StateIowa
CountyCerro Gordo
Location0.4 Mi. East Of Raven AVE
Carries290th ST
CrossesIdeal Creek
Coordinates43.18393, -93.15229

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length39.7 ft (12.1 m)
Max Span9.8 ft (3 m)
Deck Width47.9 ft (14.6 m)
Deck Area176.7 sq m
Main Spans3
Year Built2021

Traffic

Avg Daily Traffic51 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number000000000106781

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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