Ia 150 over Hazelton Creek

Good

Buchanan County, Iowa · 0.3 Mi. N of Jct. SR C57 · Structure no. 000000000016011

Built: 1986; 39 years old
Condition: Good; inspected February 2023
Type: Slab; Concrete Continuous
Length: 133 ft; 3 main spans
Daily traffic: 5,100; 2022 count
Owner: State; State Highway Agency

About this bridge

Ia 150 over Hazelton Creek is a concrete continuous slab carrying Ia 150 over Hazelton Creek in Buchanan County, Iowa. It was built in 1986, so it is 39 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,100 vehicles a day, roughly 7% of them trucks, projected to reach 5,100 by 2042. The structure is 133 ft (40.5 m) long and 47 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesIa 150

CrossesHazelton Creek

Location0.3 Mi. N of Jct. SR C57

RouteState Highway 150

CountyBuchanan County

StateIowa

Coordinates42.62199, -91.9065

Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	7 Good	Some minor problems.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionFebruary 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour within limits of footing or piles

Structural evaluation7: Better than present minimum criteria

Deck geometry6: Equal to present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is

Operating rating69.9 US tons

Inventory rating41.9 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length133 ft (40.5 m)

Longest span51 ft (15.5 m)

Deck width47 ft (14.3 m)

Roadway width44 ft (13.4 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,100 (2022)

Projected traffic5,100 by 2042

Trucks7%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed14.9 mi (24 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 Ia 150 over Hazelton Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Ia 150 over Hazelton Creek 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 February 2023.

How much traffic does Ia 150 over Hazelton Creek carry?

About 5,100 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Ia 150 over Hazelton Creek?

The structure is 133 ft (40.5 m) long with a longest span of 51 ft (15.5 m) and a deck 47 ft wide.

Who owns Ia 150 over Hazelton Creek?

It is owned by the State Highway Agency.