US Bridges

Cth Tw Main ST over E Br Rock River

Fair

Dodge County, Wisconsin · 0.3M W JCT Cth Y · Structure no. B14006900000000

Built
1972
53 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
109 ft
1 main span
Daily traffic
2,215
2022 count
Owner
County
County Highway Agency

About this bridge

Cth Tw Main ST over E Br Rock River is a prestressed concrete stringer/multi-beam or girder carrying Cth Tw Main ST over E Br Rock River in Dodge County, Wisconsin. It was built in 1972, so it is 53 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,215 vehicles a day, projected to reach 2,436 by 2043. The structure is 109 ft (33.2 m) long and 37 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesCth Tw Main ST
CrossesE Br Rock River
Location0.3M W JCT Cth Y
RouteCounty Highway 0TW
CountyDodge County
StateWisconsin
Coordinates43.52867, -88.56539
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating93.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length109 ft (33.2 m)
Longest span107 ft (32.6 m)
Deck width37 ft (11.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,215 (2022)
Projected traffic2,436 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed2.5 mi (4 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 Tw Main ST over E Br Rock River built?

It was built in 1972, making it 53 years old in 2025.

What condition is Cth Tw Main ST over E Br Rock River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.

How much traffic does Cth Tw Main ST over E Br Rock River carry?

About 2,215 vehicles per day (2022 count).

How long is Cth Tw Main ST over E Br Rock River?

The structure is 109 ft (33.2 m) long with a longest span of 107 ft (32.6 m) and a deck 37 ft wide.

Who owns Cth Tw Main ST over E Br Rock River?

It is owned by the County Highway Agency.