Structure 608290 · Lee County, IA

US 218 SB over Sugar Creek

Carries US 218 SB over Sugar Creek, 0.1 Mi. S Of Jct. Ia 16.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT121 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

121 ft end to end, longest span 42 ft. 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 slab bridge.

Built200323 years old
Length121.1 ft36.9 m
Daily traffic4,650counted 2023
Last inspectedMarch 2023every 24 months

Location

StateIowa
CountyLee
Location0.1 Mi. S Of Jct. Ia 16
CarriesUS 218 SB
CrossesSugar Creek
Coordinates40.78316, -91.56451

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length121.1 ft (36.9 m)
Max Span42.0 ft (12.8 m)
Deck Width42.7 ft (13 m)
Deck Area479.7 sq m
Main Spans3
Year Built2003

Traffic

Avg Daily Traffic4,650 (2023)
Truck Traffic22%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000608290

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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