US Bridges

Local over Prairie CR

Good

Hamilton County, Iowa · 087260503 · Structure no. 000000000171501

Built
2008
17 years old
Condition
Good
inspected September 2020
Type
Channel Beam
Concrete
Length
34 ft
1 main span
Daily traffic
20
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Prairie CR is a concrete channel beam carrying Local over Prairie CR in Hamilton County, Iowa. It was built in 2008, so it is 17 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 20 vehicles a day, projected to reach 20 by 2043. The structure is 34 ft (10.4 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLocal
CrossesPrairie CR
Location087260503
RouteCounty Highway 0
CountyHamilton County
StateIowa
Coordinates42.3759, -93.90537
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 2020
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 rating65.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width32 ft (9.7 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic20 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Prairie CR built?

It was built in 2008, making it 17 years old in 2025.

What condition is Local over Prairie 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 2020.

How much traffic does Local over Prairie CR carry?

About 20 vehicles per day (2022 count).

How long is Local over Prairie CR?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 32 ft wide.

Who owns Local over Prairie CR?

It is owned by the County Highway Agency.