US Bridges

275th St. over Unamed CR

Fair

Fayette County, Iowa · 095082109 · Structure no. 000000000153001

Built
1996
29 years old
Condition
Fair
inspected October 2023
Type
Culvert
Steel
Length
31 ft
1 main span
Daily traffic
44
2022 count
Owner
County
County Highway Agency

About this bridge

275th St. over Unamed CR is a steel culvert carrying 275th St. over Unamed CR in Fayette County, Iowa. It was built in 1996, so it is 29 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 44 vehicles a day, projected to reach 44 by 2043. The structure is 31 ft (9.4 m) long.

Carries275th St.
CrossesUnamed CR
Location095082109
RouteCounty Highway 0
StateIowa
Coordinates43.02981, -91.79996
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 protection8 Very GoodNo problems noted.
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 alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length31 ft (9.4 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 traffic44 (2022)
Projected traffic44 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 275th St. over Unamed CR built?

It was built in 1996, making it 29 years old in 2025.

What condition is 275th St. over Unamed CR 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 275th St. over Unamed CR carry?

About 44 vehicles per day (2022 count).

How long is 275th St. over Unamed CR?

The structure is 31 ft (9.4 m) long with a longest span of 8 ft (2.4 m).

Who owns 275th St. over Unamed CR?

It is owned by the County Highway Agency.