US Bridges

FM over Aldrich Creek

Fair

Ida County, Iowa · 087413307 · Structure no. 000000000186531

Built
1987
38 years old
Condition
Fair
inspected March 2021
Type
Culvert
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
429
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Aldrich Creek is a concrete continuous culvert carrying FM over Aldrich Creek in Ida County, Iowa. It was built in 1987, so it is 38 years old, younger 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 429 vehicles a day, roughly 19% of them trucks, projected to reach 429 by 2043. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM
CrossesAldrich Creek
Location087413307
RouteCounty Highway 0
StateIowa
Coordinates42.31254, -95.61982
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length28 ft (8.5 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic429 (2022)
Projected traffic429 by 2043
Trucks19%
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 FM over Aldrich Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is FM over Aldrich 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 2021.

How much traffic does FM over Aldrich Creek carry?

About 429 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is FM over Aldrich Creek?

The structure is 28 ft (8.5 m) long with a longest span of 13 ft (4 m).

Who owns FM over Aldrich Creek?

It is owned by the County Highway Agency.