US Bridges

US 59 over Stream

Fair

Pottawattamie County, Iowa · 0.6 Mi. N of S JCT SR G30 · Structure no. 000000000043430

Built
1952
73 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
111 ft
3 main spans
Daily traffic
2,020
2023 count
Owner
State
State Highway Agency

About this bridge

US 59 over Stream is a concrete continuous slab carrying US 59 over Stream in Pottawattamie County, Iowa. It was built in 1952, so it is 73 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,020 vehicles a day, roughly 21% of them trucks, projected to reach 2,020 by 2044. The structure is 111 ft (33.8 m) long and 33 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesUS 59
CrossesStream
Location0.6 Mi. N of S JCT SR G30
RouteU.S. Route 59
CountyPottawattamie County
StateIowa
Coordinates41.38996, -95.35014
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating50.2 US tons
Inventory rating30.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length111 ft (33.8 m)
Longest span42 ft (12.8 m)
Deck width33 ft (10.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,020 (2023)
Projected traffic2,020 by 2044
Trucks21%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 59 over Stream built?

It was built in 1952, making it 73 years old in 2025.

What condition is US 59 over Stream in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.

How much traffic does US 59 over Stream carry?

About 2,020 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is US 59 over Stream?

The structure is 111 ft (33.8 m) long with a longest span of 42 ft (12.8 m) and a deck 33 ft wide.

Who owns US 59 over Stream?

It is owned by the State Highway Agency.