US Bridges

Cth H over Turtle River

Good

Iron County, Wisconsin · 4.5M N JCT Ush 51 · Structure no. B26002800000000

Built
1996
29 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
57 ft
1 main span
Daily traffic
546
2024 count
Owner
County
County Highway Agency

About this bridge

Cth H over Turtle River is a prestressed concrete stringer/multi-beam or girder carrying Cth H over Turtle River in Iron County, Wisconsin. It was built in 1996, so it is 29 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 546 vehicles a day, projected to reach 590 by 2043. The structure is 57 ft (17.3 m) long and 32 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesCth H
CrossesTurtle River
Location4.5M N JCT Ush 51
RouteCounty Highway 0H
Coordinates46.21531, -90.03864
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.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.1 US tons
Inventory rating46.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length57 ft (17.3 m)
Longest span54 ft (16.5 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic546 (2024)
Projected traffic590 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 Turtle River built?

It was built in 1996, making it 29 years old in 2025.

What condition is Cth H over Turtle River 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 August 2024.

How much traffic does Cth H over Turtle River carry?

About 546 vehicles per day (2024 count).

How long is Cth H over Turtle River?

The structure is 57 ft (17.3 m) long with a longest span of 54 ft (16.5 m) and a deck 32 ft wide.

Who owns Cth H over Turtle River?

It is owned by the County Highway Agency.