Structure 24641 · Fayette County, IA

Ia 93 over Volga River

Carries Ia 93 over Volga River, 0.4 Mi. W Of Jct. Ia #150.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT290 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

290 ft end to end, longest span 97 ft: about 4 semi-trucks nose to tail. 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 multi-beam bridge.

Built198937 years old
Length290.0 ft88.4 m
Daily traffic790counted 2022
Last inspectedJune 2024every 24 months

Location

StateIowa
CountyFayette
Location0.4 Mi. W Of Jct. Ia #150
CarriesIa 93
CrossesVolga River
Coordinates42.84426, -91.81863

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length290.0 ft (88.4 m)
Max Span97.1 ft (29.6 m)
Deck Width39.0 ft (11.9 m)
Deck Area1052.0 sq m
Main Spans3
Year Built1989

Traffic

Avg Daily Traffic790 (2022)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000024641

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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