US Bridges

Cth O over Mineral Point Branch

Poor

Lafayette County, Wisconsin · 2.0M N JCT Cth C · Structure no. P33092700000000

Built
1970
55 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
104 ft
1 main span
Daily traffic
199
2022 count
Owner
County
County Highway Agency

About this bridge

Cth O over Mineral Point Branch is a prestressed concrete stringer/multi-beam or girder carrying Cth O over Mineral Point Branch in Lafayette County, Wisconsin. It was built in 1970, so it is 55 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 199 vehicles a day, projected to reach 218 by 2043. The structure is 104 ft (31.7 m) long and 33 ft wide. If it were closed, the detour would be 15.5 mi (25 km).

Location

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CarriesCth O
CrossesMineral Point Branch
Location2.0M N JCT Cth C
RouteCounty Highway 0O
CountyLafayette County
StateWisconsin
Coordinates42.78247, -90.19472
Functional classRural Minor Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to 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 rating84.5 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length104 ft (31.7 m)
Longest span100 ft (30.5 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic199 (2022)
Projected traffic218 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed15.5 mi (25 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$514,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth O over Mineral Point Branch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Cth O over Mineral Point 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 O over Mineral Point Branch carry?

About 199 vehicles per day (2022 count).

How long is Cth O over Mineral Point Branch?

The structure is 104 ft (31.7 m) long with a longest span of 100 ft (30.5 m) and a deck 33 ft wide.

Who owns Cth O over Mineral Point Branch?

It is owned by the County Highway Agency.