US Bridges

Ia 10 over W Br Floyd River

Fair

Sioux County, Iowa · 0.1 MI W of US 75 · Structure no. 000000000048521

Built
1989
36 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
261 ft
3 main spans
Daily traffic
1,900
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 10 over W Br Floyd River is a prestressed concrete stringer/multi-beam or girder carrying Ia 10 over W Br Floyd River in Sioux County, Iowa. It was built in 1989, so it is 36 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 1,900 vehicles a day, roughly 19% of them trucks, projected to reach 1,900 by 2042. The structure is 261 ft (79.6 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesIa 10
CrossesW Br Floyd River
Location0.1 MI W of US 75
RouteState Highway 10
CountySioux County
StateIowa
Coordinates42.99715, -96.1782
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.3 US tons
Inventory rating34.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length261 ft (79.6 m)
Longest span96 ft (29.3 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2022)
Projected traffic1,900 by 2042
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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 10 over W Br Floyd River built?

It was built in 1989, making it 36 years old in 2025.

What condition is Ia 10 over W Br Floyd River 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 April 2023.

How much traffic does Ia 10 over W Br Floyd River carry?

About 1,900 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is Ia 10 over W Br Floyd River?

The structure is 261 ft (79.6 m) long with a longest span of 96 ft (29.3 m) and a deck 43 ft wide.

Who owns Ia 10 over W Br Floyd River?

It is owned by the State Highway Agency.