US Bridges

Bear RD over Ensign Hollow

Fair

Clayton County, Iowa · 092062806 · Structure no. 000000000119351

Built
1976
49 years old
Condition
Fair
inspected October 2024
Type
Culvert
Steel
Length
20 ft
1 main span
Daily traffic
39
2022 count
Owner
County
County Highway Agency

About this bridge

Bear RD over Ensign Hollow is a steel culvert carrying Bear RD over Ensign Hollow in Clayton County, Iowa. It was built in 1976, so it is 49 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 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 39 vehicles a day, projected to reach 39 by 2044. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 14.3 mi (23 km).

CarriesBear RD
CrossesEnsign Hollow
Location092062806
RouteCounty Highway 0
StateIowa
Coordinates42.75742, -91.55306
Functional classRural Minor 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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
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 rating35.6 US tons
Inventory rating24.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadH 20
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39 (2022)
Projected traffic39 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 Bear RD over Ensign Hollow built?

It was built in 1976, making it 49 years old in 2025.

What condition is Bear RD over Ensign Hollow 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 Bear RD over Ensign Hollow carry?

About 39 vehicles per day (2022 count).

How long is Bear RD over Ensign Hollow?

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

Who owns Bear RD over Ensign Hollow?

It is owned by the County Highway Agency.