US Bridges

Plum Ave over Local Stream

Fair

Monona County, Iowa · 082432205 · Structure no. 000000000249585

Built
1950
75 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
40
2022 count
Owner
County
County Highway Agency

About this bridge

Plum Ave over Local Stream is a concrete culvert carrying Plum Ave over Local Stream in Monona County, Iowa. It was built in 1950, so it is 75 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 5 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 40 vehicles a day, projected to reach 40 by 2044. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesPlum Ave
CrossesLocal Stream
Location082432205
RouteCounty Highway 0
CountyMonona County
StateIowa
Coordinates41.89965, -95.84299
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2022)
Projected traffic40 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Plum Ave over Local Stream built?

It was built in 1950, making it 75 years old in 2025.

What condition is Plum Ave over Local 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 Plum Ave over Local Stream carry?

About 40 vehicles per day (2022 count).

How long is Plum Ave over Local Stream?

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

Who owns Plum Ave over Local Stream?

It is owned by the County Highway Agency.