Structure 194070 · Jackson County, IA

Local over Small Creek

Carries Local over Small Creek, 086e13401.

Overall conditionPoor

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

How ratings work
Deck6/9 · Satisfactory
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
25 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9Substructure 3/9 · sets the rating

25 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built1940rebuilt 1989
Length24.9 ft7.6 m
Daily traffic34counted 2021
Last inspectedMarch 2024every 12 months

Location

StateIowa
CountyJackson
Location086e13401
CarriesLocal
CrossesSmall Creek
Coordinates42.22229, -90.82495

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length24.9 ft (7.6 m)
Max Span24.0 ft (7.3 m)
Deck Width22.0 ft (6.7 m)
Deck Area50.9 sq m
Main Spans1
Year Built1940 (reconstructed 1989)

Traffic

Avg Daily Traffic34 (2021)
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000194070

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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