US Bridges

Ziegler Ave over Bear CR

Good

Hamilton County, Iowa · 086232402 · Structure no. 000000000170721

Built
2012
13 years old
Condition
Good
inspected September 2023
Type
Slab
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
60
2022 count
Owner
County
County Highway Agency

About this bridge

Ziegler Ave over Bear CR is a prestressed concrete slab carrying Ziegler Ave over Bear CR in Hamilton County, Iowa. It was built in 2012, so it is 13 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 60 vehicles a day, projected to reach 60 by 2043. The structure is 34 ft (10.4 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesZiegler Ave
CrossesBear CR
Location086232402
RouteCounty Highway 0
CountyHamilton County
StateIowa
Coordinates42.23956, -93.48254
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span33 ft (10.1 m)
Deck width31 ft (9.6 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2022)
Projected traffic60 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$30,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ziegler Ave over Bear CR built?

It was built in 2012, making it 13 years old in 2025.

What condition is Ziegler Ave over Bear CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Ziegler Ave over Bear CR carry?

About 60 vehicles per day (2022 count).

How long is Ziegler Ave over Bear CR?

The structure is 34 ft (10.4 m) long with a longest span of 33 ft (10.1 m) and a deck 31 ft wide.

Who owns Ziegler Ave over Bear CR?

It is owned by the County Highway Agency.