US Bridges

US 59 over Stream

Good

Pottawattamie County, Iowa · 0.2 Mi. S of S JCT SR G30 · Structure no. 000000000043421

Built
2021
4 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
37 ft
2 main spans
Daily traffic
1,780
2022 count
Owner
State
State Highway Agency

About this bridge

US 59 over Stream is a concrete culvert carrying US 59 over Stream in Pottawattamie County, Iowa. It was built in 2021, so it is 4 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 1,780 vehicles a day, roughly 24% of them trucks, projected to reach 1,780 by 2044. The structure is 37 ft (11.4 m) long. If it were closed, the detour would be 11.8 mi (19 km).

CarriesUS 59
CrossesStream
Location0.2 Mi. S of S JCT SR G30
RouteU.S. Route 59
StateIowa
Coordinates41.38816, -95.36517
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 inspectionOctober 2024
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 rating54.7 US tons
Inventory rating42.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length37 ft (11.4 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,780 (2022)
Projected traffic1,780 by 2044
Trucks24%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 59 over Stream built?

It was built in 2021, making it 4 years old in 2025.

What condition is US 59 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 October 2024.

How much traffic does US 59 over Stream carry?

About 1,780 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is US 59 over Stream?

The structure is 37 ft (11.4 m) long with a longest span of 14 ft (4.3 m).

Who owns US 59 over Stream?

It is owned by the State Highway Agency.