US Bridges

Iris Ave over Creek

Good

Plymouth County, Iowa · 9146280210 · Structure no. 000000000273371

Built
2010
15 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
62 ft
1 main span
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

Iris Ave over Creek is a steel stringer/multi-beam or girder carrying Iris Ave over Creek in Plymouth County, Iowa. It was built in 2010, so it is 15 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 62 ft (18.9 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesIris Ave
CrossesCreek
Location9146280210
RouteCounty Highway 0
StateIowa
Coordinates42.67001, -96.29225
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating69.8 US tons
Inventory rating41.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span59 ft (18 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (7.9 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 closed123.7 mi (199 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 Iris Ave over Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is Iris Ave over 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 May 2024.

How much traffic does Iris Ave over Creek carry?

About 11 vehicles per day (2022 count).

How long is Iris Ave over Creek?

The structure is 62 ft (18.9 m) long with a longest span of 59 ft (18 m) and a deck 27 ft wide.

Who owns Iris Ave over Creek?

It is owned by the County Highway Agency.