US Bridges

500th ST over Little Cedar Creek

Good

Pocahontas County, Iowa · 092343001 · Structure no. 000000000279811

Built
2021
4 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

500th ST over Little Cedar Creek is a concrete culvert carrying 500th ST over Little Cedar Creek in Pocahontas County, Iowa. It was built in 2021, so it is 4 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15 vehicles a day, projected to reach 15 by 2043. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries500th ST
CrossesLittle Cedar Creek
Location092343001
RouteCounty Highway 0
StateIowa
Coordinates42.76307, -94.90057
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.
Culvert9 ExcellentNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating51 US tons
Inventory rating39.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
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 traffic15 (2022)
Projected traffic15 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$30,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 500th ST over Little Cedar Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is 500th 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 October 2023.

How much traffic does 500th ST over Little Cedar Creek carry?

About 15 vehicles per day (2022 count).

How long is 500th ST over Little Cedar Creek?

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

Who owns 500th ST over Little Cedar Creek?

It is owned by the County Highway Agency.