US Bridges

100th Ave. over Little Bear Creek

Fair

Jones County, Iowa · 084021002 · Structure no. 000000000207211

Built
2006
19 years old
Condition
Fair
inspected December 2022
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
35
2022 count
Owner
County
County Highway Agency

About this bridge

100th Ave. over Little Bear Creek is a concrete continuous culvert carrying 100th Ave. over Little Bear Creek in Jones County, Iowa. It was built in 2006, so it is 19 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 35 vehicles a day, projected to reach 35 by 2043. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Carries100th Ave.
CrossesLittle Bear Creek
Location084021002
RouteCounty Highway 0
StateIowa
Coordinates42.09581, -91.07336
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2022
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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.2 US tons
Inventory rating21.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2022)
Projected traffic35 by 2043
Trucks0%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 100th Ave. over Little Bear Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is 100th Ave. over Little Bear 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 December 2022.

How much traffic does 100th Ave. over Little Bear Creek carry?

About 35 vehicles per day (2022 count).

How long is 100th Ave. over Little Bear Creek?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns 100th Ave. over Little Bear Creek?

It is owned by the County Highway Agency.