US Bridges

Ia 141 over Unnamed Stream

Good

Carroll County, Iowa · 0.9 Mi. W of Jct. SR N44 · Structure no. 000000000017311

Built
2014
11 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
1,530
2023 count
Owner
State
State Highway Agency

About this bridge

Ia 141 over Unnamed Stream is a concrete culvert carrying Ia 141 over Unnamed Stream in Carroll County, Iowa. It was built in 2014, so it is 11 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 1,530 vehicles a day, roughly 22% of them trucks, projected to reach 1,530 by 2043. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 23 mi (37 km).

Location

Open in Google Maps
CarriesIa 141
CrossesUnnamed Stream
Location0.9 Mi. W of Jct. SR N44
RouteState Highway 141
CountyCarroll County
StateIowa
Coordinates41.87689, -94.70817
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,530 (2023)
Projected traffic1,530 by 2043
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Ia 141 over Unnamed Stream built?

It was built in 2014, making it 11 years old in 2025.

What condition is Ia 141 over Unnamed 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 April 2023.

How much traffic does Ia 141 over Unnamed Stream carry?

About 1,530 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is Ia 141 over Unnamed Stream?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Ia 141 over Unnamed Stream?

It is owned by the State Highway Agency.