US Bridges

50th St. over Unamed CR

Good

Fayette County, Iowa · 091091703 · Structure no. 000000000149641

Built
1985
40 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
43 ft
3 main spans
Daily traffic
59
2022 count
Owner
County
County Highway Agency

About this bridge

50th St. over Unamed CR is a concrete culvert carrying 50th St. over Unamed CR in Fayette County, Iowa. It was built in 1985, so it is 40 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 59 vehicles a day, projected to reach 59 by 2043. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries50th St.
CrossesUnamed CR
Location091091703
RouteCounty Highway 0
CountyFayette County
StateIowa
Coordinates42.70011, -91.92784
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
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 rating34.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length43 ft (13.1 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59 (2022)
Projected traffic59 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was 50th St. over Unamed CR built?

It was built in 1985, making it 40 years old in 2025.

What condition is 50th St. over Unamed CR 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 October 2023.

How much traffic does 50th St. over Unamed CR carry?

About 59 vehicles per day (2022 count).

How long is 50th St. over Unamed CR?

The structure is 43 ft (13.1 m) long with a longest span of 14 ft (4.3 m).

Who owns 50th St. over Unamed CR?

It is owned by the County Highway Agency.