US Bridges

Cth I over Otter Creek

Good

Iowa County, Wisconsin · 0.6M S JCT Sth 130 · Structure no. B25010700000000

Built
2000
25 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete Continuous
Length
95 ft
2 main spans
Daily traffic
300
2022 count
Owner
County
County Highway Agency

About this bridge

Cth I over Otter Creek is a concrete continuous slab carrying Cth I over Otter Creek in Iowa County, Wisconsin. It was built in 2000, so it is 25 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 300 vehicles a day, projected to reach 360 by 2042. The structure is 95 ft (28.9 m) long and 36 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesCth I
CrossesOtter Creek
Location0.6M S JCT Sth 130
RouteCounty Highway 0I
Coordinates43.11667, -90.21192
Functional classRural Major 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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.7 US tons
Inventory rating42.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length95 ft (28.9 m)
Longest span46 ft (14 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2022)
Projected traffic360 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 I over Otter Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Cth I 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 April 2024.

How much traffic does Cth I over Otter Creek carry?

About 300 vehicles per day (2022 count).

How long is Cth I over Otter Creek?

The structure is 95 ft (28.9 m) long with a longest span of 46 ft (14 m) and a deck 36 ft wide.

Who owns Cth I over Otter Creek?

It is owned by the County Highway Agency.