US Bridges

Western Avenue over Waubonsie Ditch

GoodClosed to traffic

Fremont County, Iowa · 070430910 · Structure no. 000000000161511

Built
1996
29 years old
Condition
Good
inspected April 2015
Type
Slab
Concrete Continuous
Length
223 ft
5 main spans
Daily traffic
180
2022 count
Owner
County
County Highway Agency

About this bridge

Western Avenue over Waubonsie Ditch is a concrete continuous slab carrying Western Avenue over Waubonsie Ditch in Fremont County, Iowa. It was built in 1996, so it is 29 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: closed to all traffic.

It carries about 180 vehicles a day, roughly 16% of them trucks, projected to reach 180 by 2043. The structure is 223 ft (68 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesWestern Avenue
CrossesWaubonsie Ditch
Location070430910
RouteCounty Highway 0
StateIowa
Coordinates40.8796, -95.79459
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2015
Inspection intervalevery 48 months
Operating statusClosed to all traffic
ScourFoundations stable; scour above top of footing
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length223 ft (68 m)
Longest span49 ft (14.9 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2022)
Projected traffic180 by 2043
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Western Avenue over Waubonsie Ditch built?

It was built in 1996, making it 29 years old in 2025.

What condition is Western Avenue over Waubonsie Ditch 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 April 2015.

How much traffic does Western Avenue over Waubonsie Ditch carry?

About 180 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is Western Avenue over Waubonsie Ditch?

The structure is 223 ft (68 m) long with a longest span of 49 ft (14.9 m) and a deck 27 ft wide.

Who owns Western Avenue over Waubonsie Ditch?

It is owned by the County Highway Agency.