Structure 251750 · Monroe County, IA

Local over Avery Creek

Carries Local over Avery Creek, 071160904.

Overall conditionPoor

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating4/9 · Poor
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT103 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 4/9 · sets the rating

103 ft end to end, longest span 39 ft. 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 slab bridge.

Built196759 years old
Length103.0 ft31.4 m
Daily traffic26counted 2022
Last inspectedDecember 2022every 24 months

Location

StateIowa
CountyMonroe
Location071160904
CarriesLocal
CrossesAvery Creek
Coordinates40.96405, -92.71129

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length103.0 ft (31.4 m)
Max Span39.0 ft (11.9 m)
Deck Width26.2 ft (8 m)
Deck Area251.2 sq m
Main Spans3
Year Built1967

Traffic

Avg Daily Traffic26 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2022
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000251750

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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