US Bridges

220th ST over Field Stream

GoodPosted for load

Carroll County, Iowa · 083360101 · Structure no. 000000000094791

Built
2000
25 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
29
2022 count
Owner
County
County Highway Agency

About this bridge

220th ST over Field Stream is a steel stringer/multi-beam or girder carrying 220th ST over Field Stream in Carroll County, Iowa. It was built in 2000, so it is 25 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. Its operating status is: posted for load restriction.

It carries about 29 vehicles a day, projected to reach 29 by 2043. The structure is 33 ft (10.1 m) long and 25 ft wide.

Location

Open in Google Maps
Carries220th ST
CrossesField Stream
Location083360101
RouteCounty Highway 0
CountyCarroll County
StateIowa
Coordinates42.03555, -94.99022
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.2 US tons
Inventory rating21.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span31 ft (9.4 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (2022)
Projected traffic29 by 2043
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was 220th ST over Field Stream built?

It was built in 2000, making it 25 years old in 2025.

What condition is 220th ST over Field 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 May 2023.

How much traffic does 220th ST over Field Stream carry?

About 29 vehicles per day (2022 count).

How long is 220th ST over Field Stream?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 25 ft wide.

Who owns 220th ST over Field Stream?

It is owned by the County Highway Agency.