US Bridges

635th Ave over Drainage

Good

Monroe County, Iowa · 071172904 · Structure no. 000000000252051

Built
2024
1 years old
Condition
Good
inspected December 2024
Type
Culvert
Steel
Length
22 ft
2 main spans
Daily traffic
41
2023 count
Owner
County
County Highway Agency

About this bridge

635th Ave over Drainage is a steel culvert carrying 635th Ave over Drainage in Monroe County, Iowa. It was built in 2024, so it is 1 years old, younger 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 41 vehicles a day, projected to reach 41 by 2044. The structure is 22 ft (6.6 m) long and 61 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries635th Ave
CrossesDrainage
Location071172904
RouteCounty Highway 0
StateIowa
Coordinates40.91415, -92.84021
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.6 m)
Longest span10 ft (3.2 m)
Deck width61 ft (18.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2023)
Projected traffic41 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 635th Ave over Drainage built?

It was built in 2024, making it 1 years old in 2025.

What condition is 635th Ave over Drainage 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 December 2024.

How much traffic does 635th Ave over Drainage carry?

About 41 vehicles per day (2023 count).

How long is 635th Ave over Drainage?

The structure is 22 ft (6.6 m) long with a longest span of 10 ft (3.2 m) and a deck 61 ft wide.

Who owns 635th Ave over Drainage?

It is owned by the County Highway Agency.