US Bridges

FM K-42 over Drainage

Good

Plymouth County, Iowa · 091460202 · Structure no. 000000000273211

Built
2008
17 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
748
2022 count
Owner
County
County Highway Agency

About this bridge

FM K-42 over Drainage is a concrete culvert carrying FM K-42 over Drainage in Plymouth County, Iowa. It was built in 2008, so it is 17 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 748 vehicles a day, roughly 19% of them trucks, projected to reach 748 by 2044. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM K-42
CrossesDrainage
Location091460202
RouteCounty Highway 0
StateIowa
Coordinates42.73472, -96.25274
Functional classRural Major 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.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.1 US tons
Inventory rating47.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic748 (2022)
Projected traffic748 by 2044
Trucks19%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM K-42 over Drainage built?

It was built in 2008, making it 17 years old in 2025.

What condition is FM K-42 over Drainage 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 2024.

How much traffic does FM K-42 over Drainage carry?

About 748 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is FM K-42 over Drainage?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m).

Who owns FM K-42 over Drainage?

It is owned by the County Highway Agency.