Structure 33140 · Lee County, IA

Old Ia 289 over Over Bnsf Rr

Carries Old Ia 289 over Over Bnsf Rr, 067051014.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT169 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

169 ft end to end, longest span 57 ft: about 2 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.

Built195868 years old
Length169.0 ft51.5 m
Daily traffic70counted 2022
Last inspectedJanuary 2023every 24 months

Location

StateIowa
CountyLee
Location067051014
CarriesOld Ia 289
CrossesOver Bnsf Rr
Coordinates40.61608, -91.42113

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length169.0 ft (51.5 m)
Max Span57.1 ft (17.4 m)
Deck Width33.8 ft (10.3 m)
Deck Area530.5 sq m
Main Spans3
Year Built1958

Traffic

Avg Daily Traffic70 (2022)
Truck Traffic26%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000033140

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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