US Bridges

SB US 75 over Stream

Good

Plymouth County, Iowa · 1.6 Mi. N of Jct. SR C70 · Structure no. 000000000039351

Built
2020
5 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
71 ft
3 main spans
Daily traffic
7,500
2022 count
Owner
State
State Highway Agency

About this bridge

SB US 75 over Stream is a concrete continuous slab carrying SB US 75 over Stream in Plymouth County, Iowa. It was built in 2020, so it is 5 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 7,500 vehicles a day, roughly 18% of them trucks, projected to reach 7,500 by 2044. The structure is 71 ft (21.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSB US 75
CrossesStream
Location1.6 Mi. N of Jct. SR C70
RouteU.S. Route 75
CountyPlymouth County
StateIowa
Coordinates42.59806, -96.3033
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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length71 ft (21.6 m)
Longest span28 ft (8.5 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,500 (2022)
Projected traffic7,500 by 2044
Trucks18%
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 SB US 75 over Stream built?

It was built in 2020, making it 5 years old in 2025.

What condition is SB 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 September 2024.

How much traffic does SB US 75 over Stream carry?

About 7,500 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is SB US 75 over Stream?

The structure is 71 ft (21.6 m) long with a longest span of 28 ft (8.5 m) and a deck 43 ft wide.

Who owns SB US 75 over Stream?

It is owned by the State Highway Agency.