US Bridges

337th ST over Canoe Creek Branch

Fair

Winneshiek County, Iowa · 099080103 · Structure no. 000000000348441

Built
1971
54 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
265
2022 count
Owner
County
County Highway Agency

About this bridge

337th ST over Canoe Creek Branch is a concrete continuous culvert carrying 337th ST over Canoe Creek Branch in Winneshiek County, Iowa. It was built in 1971, so it is 54 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 265 vehicles a day, roughly 23% of them trucks, projected to reach 265 by 2043. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
Carries337th ST
CrossesCanoe Creek Branch
Location099080103
RouteCounty Highway 0
CountyWinneshiek County
StateIowa
Coordinates43.42098, -91.74798
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic265 (2022)
Projected traffic265 by 2043
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 337th ST over Canoe Creek Branch built?

It was built in 1971, making it 54 years old in 2025.

What condition is 337th ST over Canoe Creek Branch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does 337th ST over Canoe Creek Branch carry?

About 265 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is 337th ST over Canoe Creek Branch?

The structure is 28 ft (8.5 m) long with a longest span of 14 ft (4.3 m).

Who owns 337th ST over Canoe Creek Branch?

It is owned by the County Highway Agency.