US Bridges

370th ST over No Name Creek

Good

Sioux County, Iowa · 096452701 · Structure no. 000000000311700

Built
1965
60 years old, rebuilt 1994
Condition
Good
inspected November 2022
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
988
2022 count
Owner
County
County Highway Agency

About this bridge

370th ST over No Name Creek is a concrete culvert carrying 370th ST over No Name Creek in Sioux County, Iowa. It was built in 1965 and reconstructed in 1994, so it is 60 years old, older 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 988 vehicles a day, projected to reach 988 by 2043. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries370th ST
CrossesNo Name Creek
Location096452701
RouteCounty Highway 0
StateIowa
Coordinates43.11351, -96.14708
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 inspectionNovember 2022
Inspection intervalevery 24 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 alignment8: Equal to present desirable criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 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 traffic988 (2022)
Projected traffic988 by 2043
Trucks0%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was 370th ST over No Name Creek built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1994.

What condition is 370th 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 November 2022.

How much traffic does 370th ST over No Name Creek carry?

About 988 vehicles per day (2022 count).

How long is 370th ST over No Name Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns 370th ST over No Name Creek?

It is owned by the County Highway Agency.