Structure 608695 · Bremer County, IA

US 63 NB over Wapsipinicon River

Carries US 63 NB over Wapsipinicon River, 4.5 Mile S Of S Jct US 18.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT389 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

389 ft end to end, longest span 121 ft: about 5 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.

Built200818 years old
Length389.4 ft118.7 m
Daily traffic2,800counted 2022
Last inspectedJune 2024every 24 months

Location

StateIowa
CountyBremer
Location4.5 Mile S Of S Jct US 18
CarriesUS 63 NB
CrossesWapsipinicon River
Coordinates42.89983, -92.32188

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length389.4 ft (118.7 m)
Max Span121.4 ft (37 m)
Deck Width42.7 ft (13 m)
Deck Area1543.1 sq m
Main Spans4
Year Built2008

Traffic

Avg Daily Traffic2,800 (2022)
Truck Traffic17%
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 Number000000000608695

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.

Nearby Bridges