Structure 18611 · Cedar County, IA

EB I-80 over Cedar River

Carries EB I-80 over Cedar River, 1.0 Mi. W Of W Jct. Ia 38.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,188 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

1,188 ft end to end, longest span 137 ft: about 3.3 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 multi-beam bridge.

Built200917 years old
Length1188.3 ft362.2 m
Daily traffic18,600counted 2023
Last inspectedMay 2023every 24 months

Location

StateIowa
CountyCedar
Location1.0 Mi. W Of W Jct. Ia 38
CarriesEB I-80
CrossesCedar River
Coordinates41.64534, -91.13544

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1188.3 ft (362.2 m)
Max Span137.1 ft (41.8 m)
Deck Width59.1 ft (18 m)
Deck Area6519.6 sq m
Main Spans9
Year Built2009

Traffic

Avg Daily Traffic18,600 (2023)
Truck Traffic39%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000018611

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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