US Bridges

220th Street over Pigeon Creek

PoorPosted for load

Pottawattamie County, Iowa · 077432602 · Structure no. 000000000290810

Built
1925
100 years old, rebuilt 1982
Condition
Poor
inspected May 2023
Type
Truss - Thru
Steel
Length
143 ft
1 main span
Daily traffic
5
2021 count
Owner
County
County Highway Agency

About this bridge

220th Street over Pigeon Creek is a steel truss - thru carrying 220th Street over Pigeon Creek in Pottawattamie County, Iowa. It was built in 1925 and reconstructed in 1982, so it is 100 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 5 vehicles a day, projected to reach 5 by 2043. The structure is 143 ft (43.6 m) long and 18 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries220th Street
CrossesPigeon Creek
Location077432602
RouteCounty Highway 0
StateIowa
Coordinates41.44648, -95.765
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
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 evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27 US tons
Inventory rating16.2 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length143 ft (43.6 m)
Longest span140 ft (42.7 m)
Deck width18 ft (5.4 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deck14 ft (4.1 m)

Traffic and service

Average daily traffic5 (2021)
Projected traffic5 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 220th Street over Pigeon Creek built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1982.

What condition is 220th Street over Pigeon Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does 220th Street over Pigeon Creek carry?

About 5 vehicles per day (2021 count).

How long is 220th Street over Pigeon Creek?

The structure is 143 ft (43.6 m) long with a longest span of 140 ft (42.7 m) and a deck 18 ft wide.

Who owns 220th Street over Pigeon Creek?

It is owned by the County Highway Agency.