Structure 134951 · Davis County, IA

208th ST over Fox River

Carries 208th ST over Fox River, 069152009.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT70 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

70 ft end to end. 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 box-beam bridge.

Built20197 years old
Length69.9 ft21.3 m
Daily traffic30counted 2022
Last inspectedMay 2022every 48 months

Location

StateIowa
CountyDavis
Location069152009
Carries208th ST
CrossesFox River
Coordinates40.75980, -92.60974

Physical Characteristics

MaterialConcrete
DesignBox Beam - Multiple
Total Length69.9 ft (21.3 m)
Max Span68.9 ft (21 m)
Deck Width24.0 ft (7.3 m)
Deck Area155.5 sq m
Main Spans1
Year Built2019

Traffic

Avg Daily Traffic30 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2022
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000134951

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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