US Bridges

US 169 over Middle Beaver Creek

Good

Boone County, Iowa · 1.5 MI N of W JCT US 30 · Structure no. 000000000015290

Built
1932
93 years old, rebuilt 1984
Condition
Good
inspected May 2024
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
1,890
2022 count
Owner
State
State Highway Agency

About this bridge

US 169 over Middle Beaver Creek is a concrete slab carrying US 169 over Middle Beaver Creek in Boone County, Iowa. It was built in 1932 and reconstructed in 1984, so it is 93 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 1,890 vehicles a day, roughly 11% of them trucks, projected to reach 1,890 by 2044. The structure is 32 ft (9.8 m) long and 47 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesUS 169
CrossesMiddle Beaver Creek
Location1.5 MI N of W JCT US 30
RouteU.S. Route 169
StateIowa
Coordinates42.05743, -94.10595
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.8 US tons
Inventory rating32.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span30 ft (9.1 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,890 (2022)
Projected traffic1,890 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 169 over Middle Beaver Creek built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1984.

What condition is US 169 over Middle 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 May 2024.

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

About 1,890 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is US 169 over Middle Beaver Creek?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 47 ft wide.

Who owns US 169 over Middle Beaver Creek?

It is owned by the State Highway Agency.