US Bridges

Cth Aa over Otter Creek

Good

Eau Claire County, Wisconsin · 0.7M E Ush 53 · Structure no. B18022900000000

Built
2016
9 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
2,910
2024 count
Owner
County
County Highway Agency

About this bridge

Cth Aa over Otter Creek is a prestressed concrete stringer/multi-beam or girder carrying Cth Aa over Otter Creek in Eau Claire County, Wisconsin. It was built in 2016, so it is 9 years old, younger than the Wisconsin average of 40.3 years.

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

It carries about 2,910 vehicles a day, roughly 5% of them trucks, projected to reach 3,700 by 2043. The structure is 73 ft (22.4 m) long and 43 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesCth Aa
CrossesOtter Creek
Location0.7M E Ush 53
RouteCounty Highway 0AA
Coordinates44.77839, -91.42211
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating43.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length73 ft (22.4 m)
Longest span71 ft (21.6 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,910 (2024)
Projected traffic3,700 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Cth Aa over Otter Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is Cth Aa over Otter Creek 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 August 2024.

How much traffic does Cth Aa over Otter Creek carry?

About 2,910 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Cth Aa over Otter Creek?

The structure is 73 ft (22.4 m) long with a longest span of 71 ft (21.6 m) and a deck 43 ft wide.

Who owns Cth Aa over Otter Creek?

It is owned by the County Highway Agency.