US Bridges

590th ST over Maple River

Good

Cherokee County, Iowa · 091393201 · Structure no. 000000000107971

Built
2024
1 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete Continuous
Length
121 ft
3 main spans
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

590th ST over Maple River is a concrete continuous slab carrying 590th ST over Maple River in Cherokee County, Iowa. It was built in 2024, so it is 1 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 30 vehicles a day, projected to reach 30 by 2043. The structure is 121 ft (36.9 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries590th ST
CrossesMaple River
Location091393201
RouteCounty Highway 0
CountyCherokee County
StateIowa
Coordinates42.66248, -95.47514
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating44 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length121 ft (36.9 m)
Longest span47 ft (14.3 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic30 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was 590th ST over Maple River built?

It was built in 2024, making it 1 years old in 2025.

What condition is 590th ST over Maple 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 2024.

How much traffic does 590th ST over Maple River carry?

About 30 vehicles per day (2023 count).

How long is 590th ST over Maple River?

The structure is 121 ft (36.9 m) long with a longest span of 47 ft (14.3 m) and a deck 33 ft wide.

Who owns 590th ST over Maple River?

It is owned by the County Highway Agency.