US Bridges

120th St. over Alexander CR

PoorPosted for load

Fayette County, Iowa · 092080801 · Structure no. 000000000150221

Built
1989
36 years old
Condition
Poor
inspected October 2023
Type
Culvert
Steel
Length
24 ft
2 main spans
Daily traffic
33
2022 count
Owner
County
County Highway Agency

About this bridge

120th St. over Alexander CR is a steel culvert carrying 120th St. over Alexander CR in Fayette County, Iowa. It was built in 1989, so it is 36 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 33 vehicles a day, projected to reach 33 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries120th St.
CrossesAlexander CR
Location092080801
RouteCounty Highway 0
CountyFayette County
StateIowa
Coordinates42.80334, -91.808
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span10 ft (3 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 closed3.7 mi (6 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$390,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 120th St. over Alexander CR built?

It was built in 1989, making it 36 years old in 2025.

What condition is 120th St. over Alexander CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does 120th St. over Alexander CR carry?

About 33 vehicles per day (2022 count).

How long is 120th St. over Alexander CR?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m).

Who owns 120th St. over Alexander CR?

It is owned by the County Highway Agency.