US Bridges

Ia 60 NB over Floyd River

Good

O'Brien County, Iowa · 2.5 MI N of JCT US 18 · Structure no. 000000000608890

Built
2004
21 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
303 ft
3 main spans
Daily traffic
2,650
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 60 NB over Floyd River is a prestressed concrete stringer/multi-beam or girder carrying Ia 60 NB over Floyd River in O'Brien County, Iowa. It was built in 2004, so it is 21 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 2,650 vehicles a day, roughly 30% of them trucks, projected to reach 2,650 by 2043. The structure is 303 ft (92.4 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIa 60 NB
CrossesFloyd River
Location2.5 MI N of JCT US 18
RouteState Highway 60
CountyO'Brien County
StateIowa
Coordinates43.22232, -95.8124
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal 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 rating97.6 US tons
Inventory rating59.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length303 ft (92.4 m)
Longest span91 ft (27.7 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,650 (2022)
Projected traffic2,650 by 2043
Trucks30%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Ia 60 NB over Floyd River built?

It was built in 2004, making it 21 years old in 2025.

What condition is Ia 60 NB over Floyd 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 Ia 60 NB over Floyd River carry?

About 2,650 vehicles per day (2022 count), of which roughly 30% are trucks.

How long is Ia 60 NB over Floyd River?

The structure is 303 ft (92.4 m) long with a longest span of 91 ft (27.7 m) and a deck 43 ft wide.

Who owns Ia 60 NB over Floyd River?

It is owned by the State Highway Agency.