US Bridges

Cth II over Otter Creek

Good

Iowa County, Wisconsin · 1.9M N JCT Cth Q · Structure no. B25019100000000

Built
2022
3 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
127 ft
3 main spans
Daily traffic
185
2022 count
Owner
County
County Highway Agency

About this bridge

Cth II over Otter Creek is a concrete continuous slab carrying Cth II over Otter Creek in Iowa County, Wisconsin. It was built in 2022, so it is 3 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 185 vehicles a day, roughly 10% of them trucks, projected to reach 275 by 2042. The structure is 127 ft (38.6 m) long and 29 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCth II
CrossesOtter Creek
Location1.9M N JCT Cth Q
RouteCounty Highway 0
Coordinates43.06194, -90.25558
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating49.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length127 ft (38.6 m)
Longest span50 ft (15.2 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic185 (2022)
Projected traffic275 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 II over Otter Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is Cth II 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 November 2024.

How much traffic does Cth II over Otter Creek carry?

About 185 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Cth II over Otter Creek?

The structure is 127 ft (38.6 m) long with a longest span of 50 ft (15.2 m) and a deck 29 ft wide.

Who owns Cth II over Otter Creek?

It is owned by the County Highway Agency.