US Bridges

168th Place over Stream

Fair

Marion County, Iowa · 074192706 · Structure no. 000000000238971

Built
2018
7 years old
Condition
Fair
inspected December 2024
Type
Culvert
Steel
Length
22 ft
2 main spans
Daily traffic
34
2022 count
Owner
County
County Highway Agency

About this bridge

168th Place over Stream is a steel culvert carrying 168th Place over Stream in Marion County, Iowa. It was built in 2018, so it is 7 years old, younger 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 34 vehicles a day, projected to reach 34 by 2044. The structure is 22 ft (6.7 m) long.

Carries168th Place
CrossesStream
Location074192706
RouteCounty Highway 0
StateIowa
Coordinates41.17958, -93.02779
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34 (2022)
Projected traffic34 by 2044
Trucks0%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 168th Place over Stream built?

It was built in 2018, making it 7 years old in 2025.

What condition is 168th Place over Stream 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 December 2024.

How much traffic does 168th Place over Stream carry?

About 34 vehicles per day (2022 count).

How long is 168th Place over Stream?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns 168th Place over Stream?

It is owned by the County Highway Agency.