F58 Littlefield DR over Drainage Ditch

Good

Audubon County, Iowa · 0.3 Mile W. of Eagle Ave. · Structure no. 000000000066941

Built: 2015; 10 years old
Condition: Good; inspected May 2024
Type: Culvert; Concrete Continuous
Length: 21 ft; 2 main spans
Daily traffic: 597; 2022 count
Owner: County; County Highway Agency

About this bridge

F58 Littlefield DR over Drainage Ditch is a concrete continuous culvert carrying F58 Littlefield DR over Drainage Ditch in Audubon County, Iowa. It was built in 2015, so it is 10 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 597 vehicles a day, roughly 6% of them trucks, projected to reach 597 by 2044. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps

CarriesF58 Littlefield DR

CrossesDrainage Ditch

Location0.3 Mile W. of Eagle Ave.

RouteCounty Highway 0

CountyAudubon County

StateIowa

Coordinates41.59167, -95.02896

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.

Component	Rating	Meaning
Channel and channel protection	8 Very Good	No problems noted.
Culvert	8 Very Good	No problems noted.

Last inspectionMay 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation8: Equal to present desirable criteria

Waterway adequacy7: Better than present minimum 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 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 traffic597 (2022)

Projected traffic597 by 2044

Trucks6%

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 proposedNone recorded

Estimated improvement cost—

NavigationNot applicable (no waterway)

Frequently asked questions

When was F58 Littlefield DR over Drainage Ditch built?

It was built in 2015, making it 10 years old in 2025.

What condition is F58 Littlefield DR over Drainage Ditch 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 F58 Littlefield DR over Drainage Ditch carry?

About 597 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is F58 Littlefield DR over Drainage Ditch?

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

Who owns F58 Littlefield DR over Drainage Ditch?

It is owned by the County Highway Agency.