US Bridges

Nature Ave over Small Stream

Good

Clayton County, Iowa · T91N R2W SEC5 · Structure no. 000000000365096

Built
2014
11 years old
Condition
Good
inspected November 2024
Type
Culvert
Steel
Length
23 ft
2 main spans
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

Nature Ave over Small Stream is a steel culvert carrying Nature Ave over Small Stream in Clayton County, Iowa. It was built in 2014, so it is 11 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 11 vehicles a day, projected to reach 11 by 2044. The structure is 23 ft (7 m) long and 40 ft wide.

Location

Open in Google Maps
CarriesNature Ave
CrossesSmall Stream
LocationT91N R2W SEC5
RouteCounty Highway 0
CountyClayton County
StateIowa
Coordinates42.73088, -91.09389
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckOther
Main spans2
Design loadOther
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width40 ft (12.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)
Projected traffic11 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nature Ave over Small Stream built?

It was built in 2014, making it 11 years old in 2025.

What condition is Nature Ave over Small Stream 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 November 2024.

How much traffic does Nature Ave over Small Stream carry?

About 11 vehicles per day (2022 count).

How long is Nature Ave over Small Stream?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 40 ft wide.

Who owns Nature Ave over Small Stream?

It is owned by the County Highway Agency.