US Bridges

K 20 (270th St) over No Name Creek

Good

Sioux County, Iowa · 097470301 · Structure no. 000000000313092

Built
2013
12 years old
Condition
Good
inspected December 2023
Type
Culvert
Steel
Length
47 ft
3 main spans
Daily traffic
34
2022 count
Owner
County
County Highway Agency

About this bridge

K 20 (270th St) over No Name Creek is a steel culvert carrying K 20 (270th St) over No Name Creek in Sioux 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 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 34 vehicles a day, projected to reach 34 by 2043. The structure is 47 ft (14.2 m) long.

Location

Open in Google Maps
CarriesK 20 (270th St)
CrossesNo Name Creek
Location097470301
RouteCounty Highway 0
CountySioux County
StateIowa
Coordinates43.25817, -96.38923
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 inspectionDecember 2023
Inspection intervalevery 24 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 rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length47 ft (14.2 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 traffic34 (2022)
Projected traffic34 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was K 20 (270th St) over No Name Creek built?

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

What condition is K 20 (270th St) over No Name 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 December 2023.

How much traffic does K 20 (270th St) over No Name Creek carry?

About 34 vehicles per day (2022 count).

How long is K 20 (270th St) over No Name Creek?

The structure is 47 ft (14.2 m) long with a longest span of 13 ft (4 m).

Who owns K 20 (270th St) over No Name Creek?

It is owned by the County Highway Agency.