US Bridges

Sth 173 over Cranberry Ditch Crossing

Good

Wood County, Wisconsin · 1.6M N JCT Cth D · Structure no. B71012700000000

Built
2002
23 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete
Length
49 ft
1 main span
Daily traffic
1,300
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 173 over Cranberry Ditch Crossing is a concrete slab carrying Sth 173 over Cranberry Ditch Crossing in Wood County, Wisconsin. It was built in 2002, so it is 23 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 1,300 vehicles a day, roughly 4% of them trucks, projected to reach 1,560 by 2041. The structure is 49 ft (14.8 m) long and 38 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSth 173
CrossesCranberry Ditch Crossing
Location1.6M N JCT Cth D
RouteState Highway 173
Coordinates44.31999, -90.00663
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
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 rating64.8 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length49 ft (14.8 m)
Longest span46 ft (14 m)
Deck width38 ft (11.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2021)
Projected traffic1,560 by 2041
Trucks4%
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

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 173 over Cranberry Ditch Crossing built?

It was built in 2002, making it 23 years old in 2025.

What condition is Sth 173 over Cranberry Ditch Crossing 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 September 2023.

How much traffic does Sth 173 over Cranberry Ditch Crossing carry?

About 1,300 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Sth 173 over Cranberry Ditch Crossing?

The structure is 49 ft (14.8 m) long with a longest span of 46 ft (14 m) and a deck 38 ft wide.

Who owns Sth 173 over Cranberry Ditch Crossing?

It is owned by the State Highway Agency.