US Bridges

North Winn RD over Canoe Creek

Good

Winneshiek County, Iowa · 099080904 · Structure no. 000000000348490

Built
1959
66 years old, rebuilt 2017
Condition
Good
inspected March 2023
Type
Culvert
Concrete Continuous
Length
69 ft
3 main spans
Daily traffic
570
2021 count
Owner
County
County Highway Agency

About this bridge

North Winn RD over Canoe Creek is a concrete continuous culvert carrying North Winn RD over Canoe Creek in Winneshiek County, Iowa. It was built in 1959 and reconstructed in 2017, so it is 66 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 570 vehicles a day, roughly 14% of them trucks, projected to reach 570 by 2043. The structure is 69 ft (21 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNorth Winn RD
CrossesCanoe Creek
Location099080904
RouteCounty Highway 0
CountyWinneshiek County
StateIowa
Coordinates43.40614, -91.80856
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.5 US tons
Inventory rating33.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length69 ft (21 m)
Longest span18 ft (5.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic570 (2021)
Projected traffic570 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was North Winn RD over Canoe Creek built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2017.

What condition is North Winn RD over Canoe Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does North Winn RD over Canoe Creek carry?

About 570 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is North Winn RD over Canoe Creek?

The structure is 69 ft (21 m) long with a longest span of 18 ft (5.5 m).

Who owns North Winn RD over Canoe Creek?

It is owned by the County Highway Agency.