US Bridges

US 75 over Stream

Poor

Plymouth County, Iowa · 0.3 Mi. N of S.R. C-60 · Structure no. 000000000039390

Built
1926
99 years old, rebuilt 1948
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
34 ft
1 main span
Daily traffic
14,000
2022 count
Owner
State
State Highway Agency

About this bridge

US 75 over Stream is a steel stringer/multi-beam or girder carrying US 75 over Stream in Plymouth County, Iowa. It was built in 1926 and reconstructed in 1948, so it is 99 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 14,000 vehicles a day, roughly 19% of them trucks, projected to reach 14,000 by 2044. The structure is 34 ft (10.4 m) long and 55 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS 75
CrossesStream
Location0.3 Mi. N of S.R. C-60
RouteU.S. Route 75
CountyPlymouth County
StateIowa
Coordinates42.63095, -96.29077
Functional classRural Principal Arterial - Other

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.4 US tons
Inventory rating38.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width55 ft (16.9 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,000 (2022)
Projected traffic14,000 by 2044
Trucks19%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 1926, making it 99 years old in 2025. It was reconstructed in 1948.

What condition is US 75 over Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does US 75 over Stream carry?

About 14,000 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is US 75 over Stream?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 55 ft wide.

Who owns US 75 over Stream?

It is owned by the State Highway Agency.