US Bridges

80th St. over Unnamed CR

PoorPosted for load

Fayette County, Iowa · 092093401 · Structure no. 000000000150610

Built
1953
72 years old
Condition
Poor
inspected October 2023
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
70
2022 count
Owner
County
County Highway Agency

About this bridge

80th St. over Unnamed CR is a concrete slab carrying 80th St. over Unnamed CR in Fayette County, Iowa. It was built in 1953, so it is 72 years old, older 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 70 vehicles a day, projected to reach 70 by 2043. The structure is 30 ft (9.1 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries80th St.
CrossesUnnamed CR
Location092093401
RouteCounty Highway 0
CountyFayette County
StateIowa
Coordinates42.74474, -91.89879
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.7 US tons
Inventory rating17.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2022)
Projected traffic70 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$80,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 80th St. over Unnamed CR built?

It was built in 1953, making it 72 years old in 2025.

What condition is 80th St. over Unnamed 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 80th St. over Unnamed CR carry?

About 70 vehicles per day (2022 count).

How long is 80th St. over Unnamed CR?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 23 ft wide.

Who owns 80th St. over Unnamed CR?

It is owned by the County Highway Agency.