US Bridges

Cth I over Ellis Branch

Poor

Lafayette County, Wisconsin · 0.8M N JCT Cth W · Structure no. P33022300000000

Built
1930
95 years old, rebuilt 1940
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
293
2022 count
Owner
County
County Highway Agency

About this bridge

Cth I over Ellis Branch is a steel stringer/multi-beam or girder carrying Cth I over Ellis Branch in Lafayette County, Wisconsin. It was built in 1930 and reconstructed in 1940, so it is 95 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 3 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 293 vehicles a day, projected to reach 322 by 2043. The structure is 24 ft (7.4 m) long and 35 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

Open in Google Maps
CarriesCth I
CrossesEllis Branch
Location0.8M N JCT Cth W
RouteCounty Highway 0I
CountyLafayette County
StateWisconsin
Coordinates42.55003, -90.30863
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.8 US tons
Inventory rating30.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length24 ft (7.4 m)
Longest span21 ft (6.5 m)
Deck width35 ft (10.7 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic293 (2022)
Projected traffic322 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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$148,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth I over Ellis Branch built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1940.

What condition is Cth I over Ellis Branch 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 October 2024.

How much traffic does Cth I over Ellis Branch carry?

About 293 vehicles per day (2022 count).

How long is Cth I over Ellis Branch?

The structure is 24 ft (7.4 m) long with a longest span of 21 ft (6.5 m) and a deck 35 ft wide.

Who owns Cth I over Ellis Branch?

It is owned by the County Highway Agency.