US Bridges

220th Street over Creek

Fair

Clinton County, Iowa · 081E40101 · Structure no. 000000000122380

Built
1960
65 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
1,010
2022 count
Owner
County
County Highway Agency

About this bridge

220th Street over Creek is a concrete culvert carrying 220th Street over Creek in Clinton County, Iowa. It was built in 1960, so it is 65 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,010 vehicles a day, roughly 12% of them trucks, projected to reach 1,010 by 2045. The structure is 29 ft (8.8 m) long.

Carries220th Street
CrossesCreek
Location081E40101
RouteCounty Highway 0
StateIowa
Coordinates41.85899, -90.43601
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating63.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,010 (2022)
Projected traffic1,010 by 2045
Trucks12%
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 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 Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is 220th Street over Creek 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 January 2025.

How much traffic does 220th Street over Creek carry?

About 1,010 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is 220th Street over Creek?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m).

Who owns 220th Street over Creek?

It is owned by the County Highway Agency.