Local over Ioway Creek

Good

Hamilton County, Iowa · 086262602 · Structure no. 000000000171131

Built: 1988; 37 years old
Condition: Good; inspected September 2020
Type: Slab; Concrete Continuous
Length: 97 ft; 3 main spans
Daily traffic: 11; 2022 count
Owner: County; County Highway Agency

About this bridge

Local over Ioway Creek is a concrete continuous slab carrying Local over Ioway Creek in Hamilton County, Iowa. It was built in 1988, so it is 37 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 11 vehicles a day, projected to reach 11 by 2043. The structure is 97 ft (29.6 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesLocal

CrossesIoway Creek

Location086262602

RouteCounty Highway 0

CountyHamilton County

StateIowa

Coordinates42.23823, -93.8546

Functional classRural Local

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 inspectionSeptember 2020

Inspection intervalevery 48 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation7: Better than present minimum criteria

Deck geometry7: Better than present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating70 US tons

Inventory rating41.2 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length97 ft (29.6 m)

Longest span40 ft (12.2 m)

Deck width33 ft (10.1 m)

Roadway width30 ft (9.2 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)

Projected traffic11 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed1.9 mi (3 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 proposedOther structural work, including hydraulic replacements

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Ioway Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Local over Ioway 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 September 2020.

How much traffic does Local over Ioway Creek carry?

About 11 vehicles per day (2022 count).

How long is Local over Ioway Creek?

The structure is 97 ft (29.6 m) long with a longest span of 40 ft (12.2 m) and a deck 33 ft wide.

Who owns Local over Ioway Creek?

It is owned by the County Highway Agency.