US Bridges

A38 168th Ave over Drainage Ditch

Good

Winnebago County, Iowa · 098240210 · Structure no. 000000000007231

Built
2017
8 years old
Condition
Good
inspected March 2021
Type
Culvert
Concrete
Length
42 ft
3 main spans
Daily traffic
48
2022 count
Owner
County
County Highway Agency

About this bridge

A38 168th Ave over Drainage Ditch is a concrete culvert carrying A38 168th Ave over Drainage Ditch in Winnebago County, Iowa. It was built in 2017, so it is 8 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 48 vehicles a day, roughly 21% of them trucks, projected to reach 48 by 2043. The structure is 42 ft (12.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesA38 168th Ave
CrossesDrainage Ditch
Location098240210
RouteCity Street 0
CountyWinnebago County
StateIowa
Coordinates43.33258, -93.6396
Functional classRural Minor 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 inspectionMarch 2021
Inspection intervalevery 48 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 alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length42 ft (12.8 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48 (2022)
Projected traffic48 by 2043
Trucks21%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was A38 168th Ave over Drainage Ditch built?

It was built in 2017, making it 8 years old in 2025.

What condition is A38 168th Ave 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 March 2021.

How much traffic does A38 168th Ave over Drainage Ditch carry?

About 48 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is A38 168th Ave over Drainage Ditch?

The structure is 42 ft (12.8 m) long with a longest span of 12 ft (3.7 m).

Who owns A38 168th Ave over Drainage Ditch?

It is owned by the County Highway Agency.