US Bridges

Sth 120 over Como Creek

Good

Walworth County, Wisconsin · 1.0 MI N JCT Ush 12 · Structure no. B64018200000000

Built
2018
7 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete
Length
45 ft
1 main span
Daily traffic
7,900
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 120 over Como Creek is a concrete slab carrying Sth 120 over Como Creek in Walworth County, Wisconsin. It was built in 2018, so it is 7 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 7,900 vehicles a day, projected to reach 9,480 by 2042. The structure is 45 ft (13.8 m) long and 47 ft wide. If it were closed, the detour would be 23 mi (37 km).

CarriesSth 120
CrossesComo Creek
Location1.0 MI N JCT Ush 12
RouteState Highway 120
Coordinates42.61994, -88.41371
Functional classRural Principal Arterial - Other

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 protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating40.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length45 ft (13.8 m)
Longest span42 ft (12.8 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,900 (2022)
Projected traffic9,480 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Sth 120 over Como Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is Sth 120 over Como 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 October 2024.

How much traffic does Sth 120 over Como Creek carry?

About 7,900 vehicles per day (2022 count).

How long is Sth 120 over Como Creek?

The structure is 45 ft (13.8 m) long with a longest span of 42 ft (12.8 m) and a deck 47 ft wide.

Who owns Sth 120 over Como Creek?

It is owned by the State Highway Agency.