US Bridges

198th Place over Small Stream

Good

Marion County, Iowa · 076182005 · Structure no. 000000000240391

Built
1992
33 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete Continuous
Length
20 ft
2 main spans
Daily traffic
1,120
2022 count
Owner
County
County Highway Agency

About this bridge

198th Place over Small Stream is a concrete continuous culvert carrying 198th Place over Small Stream in Marion 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,120 vehicles a day, roughly 15% of them trucks, projected to reach 1,120 by 2044. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Carries198th Place
CrossesSmall Stream
Location076182005
RouteCounty Highway 0
StateIowa
Coordinates41.37282, -92.96194
Functional classRural Minor 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,120 (2022)
Projected traffic1,120 by 2044
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$60,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 198th Place over Small Stream built?

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

What condition is 198th Place 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 December 2024.

How much traffic does 198th Place over Small Stream carry?

About 1,120 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 198th Place over Small Stream?

The structure is 20 ft (6.1 m) long with a longest span of 9 ft (2.7 m).

Who owns 198th Place over Small Stream?

It is owned by the County Highway Agency.