US Bridges

C 24 Canoe RD over Hewett Creek

Fair

Clayton County, Iowa · 092061109 · Structure no. 000000000020680

Built
1935
90 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
60 ft
1 main span
Daily traffic
275
2022 count
Owner
County
County Highway Agency

About this bridge

C 24 Canoe RD over Hewett Creek is a concrete culvert carrying C 24 Canoe RD over Hewett Creek in Clayton County, Iowa. It was built in 1935, so it is 90 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 5 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 275 vehicles a day, projected to reach 275 by 2044. The structure is 60 ft (18.3 m) long. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesC 24 Canoe RD
CrossesHewett Creek
Location092061109
RouteCounty Highway 0
CountyClayton County
StateIowa
Coordinates42.79065, -91.51754
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating25.6 US tons
Inventory rating18.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length60 ft (18.3 m)
Longest span60 ft (18.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2022)
Projected traffic275 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was C 24 Canoe RD over Hewett Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is C 24 Canoe RD over Hewett Creek 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 October 2024.

How much traffic does C 24 Canoe RD over Hewett Creek carry?

About 275 vehicles per day (2022 count).

How long is C 24 Canoe RD over Hewett Creek?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m).

Who owns C 24 Canoe RD over Hewett Creek?

It is owned by the County Highway Agency.