US Bridges

150th Street over East Nishnabotna River

Good

Page County, Iowa · 070392703 · Structure no. 000000000268561

Built
2023
2 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
457 ft
3 main spans
Daily traffic
142
2023 count
Owner
County
County Highway Agency

About this bridge

150th Street over East Nishnabotna River is a prestressed concrete stringer/multi-beam or girder carrying 150th Street over East Nishnabotna River in Page County, Iowa. It was built in 2023, so it is 2 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 142 vehicles a day, roughly 20% of them trucks, projected to reach 142 by 2044. The structure is 457 ft (139.4 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries150th Street
CrossesEast Nishnabotna River
Location070392703
RouteCounty Highway 0
StateIowa
Coordinates40.8364, -95.32421
Functional classRural Minor Collector

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.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length457 ft (139.4 m)
Longest span152 ft (46.3 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic142 (2023)
Projected traffic142 by 2044
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 150th Street over East Nishnabotna River built?

It was built in 2023, making it 2 years old in 2025.

What condition is 150th Street over East Nishnabotna River 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 2024.

How much traffic does 150th Street over East Nishnabotna River carry?

About 142 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is 150th Street over East Nishnabotna River?

The structure is 457 ft (139.4 m) long with a longest span of 152 ft (46.3 m) and a deck 33 ft wide.

Who owns 150th Street over East Nishnabotna River?

It is owned by the County Highway Agency.