Structure 3910 · Polk County, IA

Fleur DR over Raccoon And Rr

Carries Fleur DR over Raccoon And Rr, 078240800.

Overall conditionPoor

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

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT947 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 4/9 · sets the rating

947 ft end to end, longest span 110 ft: about 2.6 football fields. 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 girder bridge.

Built1936rebuilt 2008
Length946.9 ft288.6 m
Daily traffic2,825counted 2022
Last inspectedJuly 2023every 24 months

Location

StateIowa
CountyPolk
Location078240800
CarriesFleur DR
CrossesRaccoon And Rr
Coordinates41.58146, -93.64281

Physical Characteristics

MaterialSteel Continuous
DesignGirder and Floorbeam
Total Length946.9 ft (288.6 m)
Max Span109.9 ft (33.5 m)
Deck Width71.9 ft (21.9 m)
Deck Area6320.3 sq m
Main Spans11
Year Built1936 (reconstructed 2008)

Traffic

Avg Daily Traffic2,825 (2022)
Lanes On Bridge4

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000003910

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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