US Bridges

FM K-49 over Drainage

Good

Plymouth County, Iowa · 091451002 · Structure no. 000000000272951

Built
1975
50 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
1,017
2022 count
Owner
County
County Highway Agency

About this bridge

FM K-49 over Drainage is a concrete culvert carrying FM K-49 over Drainage in Plymouth County, Iowa. It was built in 1975, so it is 50 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 1,017 vehicles a day, roughly 12% of them trucks, projected to reach 1,017 by 2044. The structure is 21 ft (6.4 m) long.

CarriesFM K-49
CrossesDrainage
Location091451002
RouteCounty Highway 0
StateIowa
Coordinates42.72011, -96.15622
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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
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 alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,017 (2022)
Projected traffic1,017 by 2044
Trucks12%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM K-49 over Drainage built?

It was built in 1975, making it 50 years old in 2025.

What condition is FM K-49 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 April 2024.

How much traffic does FM K-49 over Drainage carry?

About 1,017 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is FM K-49 over Drainage?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns FM K-49 over Drainage?

It is owned by the County Highway Agency.