US Bridges

Ia 175 over Stream

Good

Sac County, Iowa · 2.0 Mi. W of Jct. US 71 · Structure no. 000000000046621

Built
2011
14 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
36 ft
1 main span
Daily traffic
1,700
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 175 over Stream is a concrete culvert carrying Ia 175 over Stream in Sac County, Iowa. It was built in 2011, so it is 14 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 1,700 vehicles a day, roughly 34% of them trucks, projected to reach 1,700 by 2042. The structure is 36 ft (11 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesIa 175
CrossesStream
Location2.0 Mi. W of Jct. US 71
RouteState Highway 175
CountySac County
StateIowa
Coordinates42.31103, -94.99792
Functional classRural Minor Arterial

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 inspectionDecember 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 rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length36 ft (11 m)
Longest span36 ft (11 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2022)
Projected traffic1,700 by 2042
Trucks34%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 175 over Stream built?

It was built in 2011, making it 14 years old in 2025.

What condition is Ia 175 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 December 2023.

How much traffic does Ia 175 over Stream carry?

About 1,700 vehicles per day (2022 count), of which roughly 34% are trucks.

How long is Ia 175 over Stream?

The structure is 36 ft (11 m) long with a longest span of 36 ft (11 m).

Who owns Ia 175 over Stream?

It is owned by the State Highway Agency.