US Bridges

90th St. over Otter Creek

Fair

Fayette County, Iowa · 092093001 · Structure no. 000000000150581

Built
1995
30 years old
Condition
Fair
inspected October 2023
Type
Culvert
Steel
Length
30 ft
2 main spans
Daily traffic
33
2022 count
Owner
County
County Highway Agency

About this bridge

90th St. over Otter Creek is a steel culvert carrying 90th St. over Otter Creek in Fayette County, Iowa. It was built in 1995, so it is 30 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 33 vehicles a day, projected to reach 33 by 2043. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries90th St.
CrossesOtter Creek
Location092093001
RouteCounty Highway 0
CountyFayette County
StateIowa
Coordinates42.75876, -91.95606
Functional classRural Local

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 inspectionOctober 2023
Inspection intervalevery 24 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 alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating26.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33 (2022)
Projected traffic33 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 90th St. over Otter Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is 90th St. over Otter 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 October 2023.

How much traffic does 90th St. over Otter Creek carry?

About 33 vehicles per day (2022 count).

How long is 90th St. over Otter Creek?

The structure is 30 ft (9.1 m) long with a longest span of 8 ft (2.4 m).

Who owns 90th St. over Otter Creek?

It is owned by the County Highway Agency.