US Bridges

450th ST over Little Cedar Creek

Good

Pocahontas County, Iowa · 093343101 · Structure no. 000000000280531

Built
2017
8 years old
Condition
Good
inspected November 2021
Type
Culvert
Steel
Length
20 ft
2 main spans
Daily traffic
34
2022 count
Owner
County
County Highway Agency

About this bridge

450th ST over Little Cedar Creek is a steel culvert carrying 450th ST over Little Cedar Creek in Pocahontas 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 34 vehicles a day, projected to reach 34 by 2043. The structure is 20 ft (6.1 m) long.

Carries450th ST
CrossesLittle Cedar Creek
Location093343101
RouteCounty Highway 0
StateIowa
Coordinates42.83622, -94.89947
Functional classRural Local

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 inspectionNovember 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 rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span9 ft (2.7 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 450th ST over Little Cedar Creek built?

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

What condition is 450th ST over Little Cedar 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 2021.

How much traffic does 450th ST over Little Cedar Creek carry?

About 34 vehicles per day (2022 count).

How long is 450th ST over Little Cedar Creek?

The structure is 20 ft (6.1 m) long with a longest span of 9 ft (2.7 m).

Who owns 450th ST over Little Cedar Creek?

It is owned by the County Highway Agency.