R15 125th Ave over Sand Creek

Good

Decatur County, Iowa · 070272110 · Structure no. 000000000139121

Built: 2019; 6 years old
Condition: Good; inspected November 2021
Type: Slab; Concrete Continuous
Length: 151 ft; 3 main spans
Daily traffic: 219; 2022 count
Owner: County; County Highway Agency

About this bridge

R15 125th Ave over Sand Creek is a concrete continuous slab carrying R15 125th Ave over Sand Creek in Decatur County, Iowa. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 219 vehicles a day, roughly 20% of them trucks, projected to reach 219 by 2043. The structure is 151 ft (46 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesR15 125th Ave

CrossesSand Creek

Location070272110

RouteCounty Highway 0

CountyDecatur County

StateIowa

Coordinates40.84198, -93.9669

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

Last inspectionNovember 2021

Inspection intervalevery 48 months

Operating statusOpen, no restriction

ScourFoundations stable; scour within limits of footing or piles

Structural evaluation8: Equal to present desirable criteria

Deck geometry6: Equal to present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment6: Equal to present minimum criteria

Operating rating46.4 US tons

Inventory rating35.7 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHL 93

Structure length151 ft (46 m)

Longest span59 ft (18 m)

Deck width33 ft (10.1 m)

Roadway width31 ft (9.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic219 (2022)

Projected traffic219 by 2043

Trucks20%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed3.1 mi (5 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 R15 125th Ave over Sand Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is R15 125th Ave over Sand 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 November 2021.

How much traffic does R15 125th Ave over Sand Creek carry?

About 219 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is R15 125th Ave over Sand Creek?

The structure is 151 ft (46 m) long with a longest span of 59 ft (18 m) and a deck 33 ft wide.

Who owns R15 125th Ave over Sand Creek?

It is owned by the County Highway Agency.