US Bridges

US 169 over Drainage

Good

Kossuth County, Iowa · 0.8 Mi. S of SR B14 · Structure no. 000000000700125

Built
1959
66 years old, rebuilt 2014
Condition
Good
inspected March 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
2,140
2022 count
Owner
State
State Highway Agency

About this bridge

US 169 over Drainage is a concrete continuous culvert carrying US 169 over Drainage in Kossuth County, Iowa. It was built in 1959 and reconstructed in 2014, so it is 66 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 2,140 vehicles a day, roughly 20% of them trucks, projected to reach 2,140 by 2042. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesUS 169
CrossesDrainage
Location0.8 Mi. S of SR B14
RouteU.S. Route 169
StateIowa
Coordinates43.22876, -94.22634
Functional classRural Principal Arterial - Other

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 inspectionMarch 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
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 traffic2,140 (2022)
Projected traffic2,140 by 2042
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 169 over Drainage built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2014.

What condition is US 169 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 March 2023.

How much traffic does US 169 over Drainage carry?

About 2,140 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is US 169 over Drainage?

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

Who owns US 169 over Drainage?

It is owned by the State Highway Agency.