US Bridges

Ia 60 SB over Floyd River Tributary

Fair

Sioux County, Iowa · 0.5 MI S of SR K64 · Structure no. 000000000609300

Built
2003
22 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
92 ft
2 main spans
Daily traffic
3,450
2023 count
Owner
State
State Highway Agency

About this bridge

Ia 60 SB over Floyd River Tributary is a concrete continuous slab carrying Ia 60 SB over Floyd River Tributary in Sioux County, Iowa. It was built in 2003, so it is 22 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,450 vehicles a day, roughly 23% of them trucks, projected to reach 3,450 by 2043. The structure is 92 ft (28 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIa 60 SB
CrossesFloyd River Tributary
Location0.5 MI S of SR K64
RouteState Highway 60
CountySioux County
StateIowa
Coordinates42.92429, -96.0636
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.8 US tons
Inventory rating54.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length92 ft (28 m)
Longest span35 ft (10.7 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,450 (2023)
Projected traffic3,450 by 2043
Trucks23%
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 SB over Floyd River Tributary built?

It was built in 2003, making it 22 years old in 2025.

What condition is Ia 60 SB over Floyd River Tributary in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does Ia 60 SB over Floyd River Tributary carry?

About 3,450 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is Ia 60 SB over Floyd River Tributary?

The structure is 92 ft (28 m) long with a longest span of 35 ft (10.7 m) and a deck 42 ft wide.

Who owns Ia 60 SB over Floyd River Tributary?

It is owned by the State Highway Agency.