US Bridges

E26 170th ST over Beaver Creek

Good

Boone County, Iowa · 084280901 · Structure no. 000000000077901

Built
2016
9 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
359
2021 count
Owner
County
County Highway Agency

About this bridge

E26 170th ST over Beaver Creek is a concrete continuous culvert carrying E26 170th ST over Beaver Creek in Boone County, Iowa. It was built in 2016, so it is 9 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 359 vehicles a day, roughly 13% of them trucks, projected to reach 359 by 2043. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesE26 170th ST
CrossesBeaver Creek
Location084280901
RouteCounty Highway 0
StateIowa
Coordinates42.10707, -94.11172
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.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 48 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 rating49.3 US tons
Inventory rating37.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length27 ft (8.2 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic359 (2021)
Projected traffic359 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was E26 170th ST over Beaver Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is E26 170th ST over 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 2023.

How much traffic does E26 170th ST over Beaver Creek carry?

About 359 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is E26 170th ST over Beaver Creek?

The structure is 27 ft (8.2 m) long with a longest span of 13 ft (4 m).

Who owns E26 170th ST over Beaver Creek?

It is owned by the County Highway Agency.