US Bridges

Ia 17 over Ioway Creek

Fair

Hamilton County, Iowa · 0.9 Mile S of JCT SR D65 · Structure no. 000000000026451

Built
1979
46 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete Continuous
Length
133 ft
3 main spans
Daily traffic
2,380
2023 count
Owner
State
State Highway Agency

About this bridge

Ia 17 over Ioway Creek is a concrete continuous slab carrying Ia 17 over Ioway Creek in Hamilton County, Iowa. It was built in 1979, so it is 46 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 6 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 2,380 vehicles a day, roughly 11% of them trucks, projected to reach 2,380 by 2043. The structure is 133 ft (40.5 m) long and 47 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesIa 17
CrossesIoway Creek
Location0.9 Mile S of JCT SR D65
RouteState Highway 17
CountyHamilton County
StateIowa
Coordinates42.22522, -93.7956
Functional classRural Minor Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.6 US tons
Inventory rating23.9 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 (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,380 (2023)
Projected traffic2,380 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

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 17 over Ioway Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Ia 17 over Ioway Creek 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 March 2024.

How much traffic does Ia 17 over Ioway Creek carry?

About 2,380 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Ia 17 over Ioway 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 17 over Ioway Creek?

It is owned by the State Highway Agency.