US Bridges

US 75 over Stream

Good

Sioux County, Iowa · 1.3 MI N of JCT Ia 10 · Structure no. 000000000607555

Built
1998
27 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete Continuous
Length
128 ft
3 main spans
Daily traffic
7,300
2022 count
Owner
State
State Highway Agency

About this bridge

US 75 over Stream is a concrete continuous slab carrying US 75 over Stream in Sioux County, Iowa. It was built in 1998, so it is 27 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,300 vehicles a day, roughly 13% of them trucks, projected to reach 7,300 by 2043. The structure is 128 ft (39 m) long and 47 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesUS 75
CrossesStream
Location1.3 MI N of JCT Ia 10
RouteU.S. Route 75
StateIowa
Coordinates43.01547, -96.17217
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating68.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length128 ft (39 m)
Longest span49 ft (14.9 m)
Deck width47 ft (14.2 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,300 (2022)
Projected traffic7,300 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 US 75 over Stream built?

It was built in 1998, making it 27 years old in 2025.

What condition is US 75 over Stream 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 November 2023.

How much traffic does US 75 over Stream carry?

About 7,300 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is US 75 over Stream?

The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 47 ft wide.

Who owns US 75 over Stream?

It is owned by the State Highway Agency.