US Bridges

110th Street over Small

FairPosted for load

Chickasaw County, Iowa · 097132501 · Structure no. 000000000365335

Built
1969
56 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
295
2022 count
Owner
County
County Highway Agency

About this bridge

110th Street over Small is a concrete culvert carrying 110th Street over Small in Chickasaw County, Iowa. It was built in 1969, so it is 56 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. Its operating status is: posted for load restriction.

It carries about 295 vehicles a day, roughly 15% of them trucks, projected to reach 295 by 2044. The structure is 20 ft (6.1 m) long and 39 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries110th Street
CrossesSmall
Location097132501
RouteCounty Highway 0
StateIowa
Coordinates43.19841, -92.31992
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.3 US tons
Inventory rating21.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width39 ft (11.9 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic295 (2022)
Projected traffic295 by 2044
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was 110th Street over Small built?

It was built in 1969, making it 56 years old in 2025.

What condition is 110th Street over Small 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 March 2024.

How much traffic does 110th Street over Small carry?

About 295 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 110th Street over Small?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 39 ft wide.

Who owns 110th Street over Small?

It is owned by the County Highway Agency.