US Bridges

150th St. over Stream

Good

Clinton County, Iowa · 083E13509 · Structure no. 000000000124601

Built
1991
34 years old
Condition
Good
inspected December 2023
Type
Slab
Concrete Continuous
Length
90 ft
3 main spans
Daily traffic
80
2022 count
Owner
County
County Highway Agency

About this bridge

150th St. over Stream is a concrete continuous slab carrying 150th St. over Stream in Clinton County, Iowa. It was built in 1991, so it is 34 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 80 vehicles a day, projected to reach 80 by 2043. The structure is 90 ft (27.4 m) long and 33 ft wide.

Location

Open in Google Maps
Carries150th St.
CrossesStream
Location083E13509
RouteCounty Highway 0
CountyClinton County
StateIowa
Coordinates41.96024, -90.81171
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.8 US tons
Inventory rating56.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span34 ft (10.4 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2022)
Projected traffic80 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$110,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 150th St. over Stream built?

It was built in 1991, making it 34 years old in 2025.

What condition is 150th St. 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 150th St. over Stream carry?

About 80 vehicles per day (2022 count).

How long is 150th St. over Stream?

The structure is 90 ft (27.4 m) long with a longest span of 34 ft (10.4 m) and a deck 33 ft wide.

Who owns 150th St. over Stream?

It is owned by the County Highway Agency.