US Bridges

FM 150th ST over Turkey River

Fair

Howard County, Iowa · 98112301 · Structure no. 000000000182112

Built
2009
16 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
34 ft
1 main span
Daily traffic
766
2022 count
Owner
County
County Highway Agency

About this bridge

FM 150th ST over Turkey River is a concrete slab carrying FM 150th ST over Turkey River in Howard County, Iowa. It was built in 2009, so it is 16 years old, younger 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 766 vehicles a day, roughly 23% of them trucks, projected to reach 766 by 2043. The structure is 34 ft (10.4 m) long and 33 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesFM 150th ST
CrossesTurkey River
Location98112301
RouteCounty Highway 0
CountyHoward County
StateIowa
Coordinates43.29906, -92.10526
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
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 protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic766 (2022)
Projected traffic766 by 2043
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 150th ST over Turkey River built?

It was built in 2009, making it 16 years old in 2025.

What condition is FM 150th ST over Turkey River 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 April 2023.

How much traffic does FM 150th ST over Turkey River carry?

About 766 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is FM 150th ST over Turkey River?

The structure is 34 ft (10.4 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns FM 150th ST over Turkey River?

It is owned by the County Highway Agency.