Structure 118400 · Clayton County, IA

Glacier RD over Stream

Carries Glacier RD over Stream, 091041704.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck4/9 · Poor
Superstructure5/9 · Fair
Substructuresets the rating3/9 · Serious
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT29 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9Superstructure 5/9Substructure 3/9 · sets the rating

29 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.

Built1925101 years old
Length28.9 ft8.8 m
Daily traffic79counted 2022
Last inspectedNovember 2024every 12 months

Location

StateIowa
CountyClayton
Location091041704
CarriesGlacier RD
CrossesStream
Coordinates42.69396, -91.34353

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length28.9 ft (8.8 m)
Max Span27.9 ft (8.5 m)
Deck Width18.0 ft (5.5 m)
Deck Area48.4 sq m
Main Spans1
Year Built1925

Traffic

Avg Daily Traffic79 (2022)
Lanes On Bridge1

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical5 — Stable for scour
Structure Number000000000118400

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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