D15 130th ST over Ashton Creek

Good

Ida County, Iowa · 089401901 · Structure no. 000000000187551

Built: 2013; 12 years old
Condition: Good; inspected February 2024
Type: Slab; Concrete Continuous
Length: 83 ft; 3 main spans
Daily traffic: 210; 2022 count
Owner: County; County Highway Agency

About this bridge

D15 130th ST over Ashton Creek is a concrete continuous slab carrying D15 130th ST over Ashton Creek in Ida County, Iowa. It was built in 2013, so it is 12 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 210 vehicles a day, roughly 20% of them trucks, projected to reach 210 by 2044. The structure is 83 ft (25.3 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesD15 130th ST

CrossesAshton Creek

Location089401901

RouteCounty Highway 0

CountyIda County

StateIowa

Coordinates42.51836, -95.60694

Functional classRural Major Collector

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	8 Very Good	No problems noted.
Channel and channel protection	8 Very Good	No problems noted.

Last inspectionFebruary 2024

Inspection intervalevery 48 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 alignment8: Equal to present desirable criteria

Operating rating55.3 US tons

Inventory rating42.9 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHL 93

Structure length83 ft (25.3 m)

Longest span31 ft (9.4 m)

Deck width33 ft (10.1 m)

Roadway width31 ft (9.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2022)

Projected traffic210 by 2044

Trucks20%

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$30,000 (2024 estimate)

NavigationNo navigation control on waterway

Frequently asked questions

When was D15 130th ST over Ashton Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is D15 130th ST over Ashton 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 2024.

How much traffic does D15 130th ST over Ashton Creek carry?

About 210 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is D15 130th ST over Ashton Creek?

The structure is 83 ft (25.3 m) long with a longest span of 31 ft (9.4 m) and a deck 33 ft wide.

Who owns D15 130th ST over Ashton Creek?

It is owned by the County Highway Agency.