US Bridges

FM over Stream

Good

Monona County, Iowa · 084440904 · Structure no. 000000000250720

Built
1957
68 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Stream is a concrete continuous culvert carrying FM over Stream in Monona County, Iowa. It was built in 1957, so it is 68 years old, older 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 11 vehicles a day, projected to reach 11 by 2043. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM
CrossesStream
Location084440904
RouteCounty Highway 0
StateIowa
Coordinates42.10264, -95.97122
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 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 rating68.7 US tons
Inventory rating41.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 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 traffic11 (2022)
Projected traffic11 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Stream built?

It was built in 1957, making it 68 years old in 2025.

What condition is FM over 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 May 2023.

How much traffic does FM over Stream carry?

About 11 vehicles per day (2022 count).

How long is FM over Stream?

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

Who owns FM over Stream?

It is owned by the County Highway Agency.