US Bridges

B53 5th ST over Little Sioux River

Good

Clay County, Iowa · 095362505 · Structure no. 000000000116241

Built
2021
4 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
423 ft
3 main spans
Daily traffic
339
2022 count
Owner
County
County Highway Agency

About this bridge

B53 5th ST over Little Sioux River is a prestressed concrete continuous stringer/multi-beam or girder carrying B53 5th ST over Little Sioux River in Clay 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 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 339 vehicles a day, roughly 14% of them trucks, projected to reach 339 by 2043. The structure is 423 ft (128.8 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesB53 5th ST
CrossesLittle Sioux River
Location095362505
RouteCounty Highway 0
StateIowa
Coordinates43.01852, -95.04441
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
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo 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
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length423 ft (128.8 m)
Longest span152 ft (46.3 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic339 (2022)
Projected traffic339 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$50,000 (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was B53 5th ST over Little Sioux River built?

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

What condition is B53 5th ST over Little Sioux River 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 B53 5th ST over Little Sioux River carry?

About 339 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is B53 5th ST over Little Sioux River?

The structure is 423 ft (128.8 m) long with a longest span of 152 ft (46.3 m) and a deck 33 ft wide.

Who owns B53 5th ST over Little Sioux River?

It is owned by the County Highway Agency.