US Bridges

Cth H over Sawmill Creek

Good

Green County, Wisconsin · 1.9M W JCT Cth a · Structure no. P23097400000000

Built
1975
50 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
246
2022 count
Owner
County
County Highway Agency

About this bridge

Cth H over Sawmill Creek is a prestressed concrete stringer/multi-beam or girder carrying Cth H over Sawmill Creek in Green County, Wisconsin. It was built in 1975, so it is 50 years old, older 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 246 vehicles a day, projected to reach 270 by 2043. The structure is 60 ft (18.3 m) long and 36 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesCth H
CrossesSawmill Creek
Location1.9M W JCT Cth a
RouteCounty Highway 0H
Coordinates42.8087, -89.79798
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating34 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length60 ft (18.3 m)
Longest span58 ft (17.7 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic246 (2022)
Projected traffic270 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 H over Sawmill Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Cth H over Sawmill 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 June 2024.

How much traffic does Cth H over Sawmill Creek carry?

About 246 vehicles per day (2022 count).

How long is Cth H over Sawmill Creek?

The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.7 m) and a deck 36 ft wide.

Who owns Cth H over Sawmill Creek?

It is owned by the County Highway Agency.