US Bridges

US 169 over Little Beaver Creek

Good

Boone County, Iowa · 4.6 Miles North of Ia 141 · Structure no. 000000000015251

Built
1984
41 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
3,370
2022 count
Owner
State
State Highway Agency

About this bridge

US 169 over Little Beaver Creek is a concrete continuous culvert carrying US 169 over Little Beaver Creek in Boone County, Iowa. It was built in 1984, so it is 41 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 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 3,370 vehicles a day, roughly 13% of them trucks, projected to reach 3,370 by 2044. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesUS 169
CrossesLittle Beaver Creek
Location4.6 Miles North of Ia 141
RouteU.S. Route 169
StateIowa
Coordinates41.90229, -94.02841
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 inspectionJune 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 alignment7: Better than present minimum criteria
Operating rating41.1 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 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 traffic3,370 (2022)
Projected traffic3,370 by 2044
Trucks13%
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 Little Beaver Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is US 169 over Little Beaver Creek 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 June 2024.

How much traffic does US 169 over Little Beaver Creek carry?

About 3,370 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is US 169 over Little Beaver Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns US 169 over Little Beaver Creek?

It is owned by the State Highway Agency.