US Bridges

220th ST over Turkey River

FairPosted for load

Winneshiek County, Iowa · 097100303 · Structure no. 000000000361080

Built
1900
125 years old
Condition
Fair
inspected March 2024
Type
Truss - Thru
Steel
Length
110 ft
1 main span
Daily traffic
33
2022 count
Owner
County
County Highway Agency

About this bridge

220th ST over Turkey River is a steel truss - thru carrying 220th ST over Turkey River in Winneshiek County, Iowa. It was built in 1900, so it is 125 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. Its operating status is: posted for load restriction.

It carries about 33 vehicles a day, projected to reach 33 by 2044. The structure is 110 ft (33.5 m) long and 16 ft wide.

Location

Open in Google Maps
Carries220th ST
CrossesTurkey River
Location097100303
RouteCounty Highway 0
CountyWinneshiek County
StateIowa
Coordinates43.2552, -92.00883
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 12 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating33.8 US tons
Inventory rating21.3 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length110 ft (33.5 m)
Longest span110 ft (33.5 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deck13 ft (3.8 m)

Traffic and service

Average daily traffic33 (2022)
Projected traffic33 by 2044
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 220th ST over Turkey River built?

It was built in 1900, making it 125 years old in 2025.

What condition is 220th ST over Turkey River 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 March 2024.

How much traffic does 220th ST over Turkey River carry?

About 33 vehicles per day (2022 count).

How long is 220th ST over Turkey River?

The structure is 110 ft (33.5 m) long with a longest span of 110 ft (33.5 m) and a deck 16 ft wide.

Who owns 220th ST over Turkey River?

It is owned by the County Highway Agency.