US Bridges

M Ave over Stream

FairPosted for load

Greene County, Iowa · 084301902 · Structure no. 000000000162520

Built
1958
67 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete Continuous
Length
102 ft
3 main spans
Daily traffic
51
2022 count
Owner
County
County Highway Agency

About this bridge

M Ave over Stream is a concrete continuous slab carrying M Ave over Stream in Greene County, Iowa. It was built in 1958, so it is 67 years old, older 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. Its operating status is: posted for load restriction.

It carries about 51 vehicles a day, roughly 24% of them trucks, projected to reach 51 by 2043. The structure is 102 ft (31.1 m) long and 20 ft wide.

Location

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CarriesM Ave
CrossesStream
Location084301902
RouteCounty Highway 0
CountyGreene County
StateIowa
Coordinates42.07113, -94.39793
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.6 US tons
Inventory rating15.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length102 ft (31.1 m)
Longest span39 ft (11.9 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51 (2022)
Projected traffic51 by 2043
Trucks24%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was M Ave over Stream built?

It was built in 1958, making it 67 years old in 2025.

What condition is M Ave 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 May 2024.

How much traffic does M Ave over Stream carry?

About 51 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is M Ave over Stream?

The structure is 102 ft (31.1 m) long with a longest span of 39 ft (11.9 m) and a deck 20 ft wide.

Who owns M Ave over Stream?

It is owned by the County Highway Agency.