US Bridges

US 75 over Stream

Good

Plymouth County, Iowa · 1.5 Mi. S of SR C60 · Structure no. 000000000700995

Built
2019
6 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
14,900
2022 count
Owner
State
State Highway Agency

About this bridge

US 75 over Stream is a concrete culvert carrying US 75 over Stream in Plymouth County, Iowa. It was built in 2019, so it is 6 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 14,900 vehicles a day, roughly 18% of them trucks, projected to reach 14,900 by 2042. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesUS 75
CrossesStream
Location1.5 Mi. S of SR C60
RouteU.S. Route 75
CountyPlymouth County
StateIowa
Coordinates42.60666, -96.29872
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,900 (2022)
Projected traffic14,900 by 2042
Trucks18%
Lanes on structure4
Traffic directionTwo-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 US 75 over Stream built?

It was built in 2019, making it 6 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 March 2023.

How much traffic does US 75 over Stream carry?

About 14,900 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is US 75 over Stream?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns US 75 over Stream?

It is owned by the State Highway Agency.