US Bridges

190th Street over Small Stream

Good

Clinton County, Iowa · 082E22301 · Structure no. 000000000123291

Built
1992
33 years old
Condition
Good
inspected February 2021
Type
Culvert
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
490
2022 count
Owner
County
County Highway Agency

About this bridge

190th Street over Small Stream is a prestressed concrete culvert carrying 190th Street over Small Stream in Clinton County, Iowa. It was built in 1992, so it is 33 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 490 vehicles a day, roughly 12% of them trucks, projected to reach 490 by 2043. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 5 mi (8 km).

Carries190th Street
CrossesSmall Stream
Location082E22301
RouteCounty Highway 0
StateIowa
Coordinates41.90172, -90.69312
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionFebruary 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating46.7 US tons

Structure

Structure typeCulvert
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic490 (2022)
Projected traffic490 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 190th Street over Small Stream built?

It was built in 1992, making it 33 years old in 2025.

What condition is 190th Street over Small 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 February 2021.

How much traffic does 190th Street over Small Stream carry?

About 490 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is 190th Street over Small Stream?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m).

Who owns 190th Street over Small Stream?

It is owned by the County Highway Agency.