US Bridges

S Ave over Unamed Creek

Fair

Fayette County, Iowa · 093091802 · Structure no. 000000000151450

Built
1926
99 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
26
2022 count
Owner
County
County Highway Agency

About this bridge

S Ave over Unamed Creek is a concrete culvert carrying S Ave over Unamed Creek in Fayette County, Iowa. It was built in 1926, so it is 99 years old, older 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 5 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 26 vehicles a day, projected to reach 26 by 2044. The structure is 21 ft (6.4 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesS Ave
CrossesUnamed Creek
Location093091802
RouteCounty Highway 0
CountyFayette County
StateIowa
Coordinates42.86818, -91.96369
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26 (2022)
Projected traffic26 by 2044
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S Ave over Unamed Creek built?

It was built in 1926, making it 99 years old in 2025.

What condition is S Ave over Unamed 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 2024.

How much traffic does S Ave over Unamed Creek carry?

About 26 vehicles per day (2022 count).

How long is S Ave over Unamed Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 20 ft wide.

Who owns S Ave over Unamed Creek?

It is owned by the County Highway Agency.