US Bridges

Cth Ay over E Br Rock River

Poor

Dodge County, Wisconsin · 1.0M S JCT Sth 28 · Structure no. B14001300000000

Built
1953
72 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
135 ft
3 main spans
Daily traffic
840
2021 count
Owner
County
County Highway Agency

About this bridge

Cth Ay over E Br Rock River is a steel continuous stringer/multi-beam or girder carrying Cth Ay over E Br Rock River in Dodge County, Wisconsin. It was built in 1953, so it is 72 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 840 vehicles a day, projected to reach 1,008 by 2041. The structure is 135 ft (41.1 m) long and 27 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesCth Ay
CrossesE Br Rock River
Location1.0M S JCT Sth 28
RouteCounty Highway 0AY
CountyDodge County
StateWisconsin
Coordinates43.50149, -88.4899
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.6 US tons
Inventory rating23.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length135 ft (41.1 m)
Longest span50 ft (15.2 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic840 (2021)
Projected traffic1,008 by 2041
Trucks0%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$729,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth Ay over E Br Rock River built?

It was built in 1953, making it 72 years old in 2025.

What condition is Cth Ay over E Br Rock River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does Cth Ay over E Br Rock River carry?

About 840 vehicles per day (2021 count).

How long is Cth Ay over E Br Rock River?

The structure is 135 ft (41.1 m) long with a longest span of 50 ft (15.2 m) and a deck 27 ft wide.

Who owns Cth Ay over E Br Rock River?

It is owned by the County Highway Agency.