US Bridges

E 44 (70th St) over Prairie Creek

Good

Benton County, Iowa · 083111501 · Structure no. 000000000071182

Built
2013
12 years old
Condition
Good
inspected April 2021
Type
Culvert
Concrete Continuous
Length
32 ft
2 main spans
Daily traffic
1,070
2022 count
Owner
County
County Highway Agency

About this bridge

E 44 (70th St) over Prairie Creek is a concrete continuous culvert carrying E 44 (70th St) over Prairie Creek in Benton County, Iowa. It was built in 2013, so it is 12 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 1,070 vehicles a day, roughly 19% of them trucks, projected to reach 1,070 by 2043. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesE 44 (70th St)
CrossesPrairie Creek
Location083111501
RouteCounty Highway 0
CountyBenton County
StateIowa
Coordinates42.00701, -92.12192
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 2021
Inspection intervalevery 48 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 rating48.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
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 traffic1,070 (2022)
Projected traffic1,070 by 2043
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was E 44 (70th St) over Prairie Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is E 44 (70th St) over Prairie 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 April 2021.

How much traffic does E 44 (70th St) over Prairie Creek carry?

About 1,070 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is E 44 (70th St) over Prairie Creek?

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

Who owns E 44 (70th St) over Prairie Creek?

It is owned by the County Highway Agency.