US Bridges

Cth a over Saunders Creek

Poor

Dane County, Wisconsin · 1.6M S JCT Ush 51 · Structure no. B13095000000000

Built
1927
98 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
44 ft
1 main span
Daily traffic
1,300
2022 count
Owner
County
County Highway Agency

About this bridge

Cth a over Saunders Creek is a concrete stringer/multi-beam or girder carrying Cth a over Saunders Creek in Dane County, Wisconsin. It was built in 1927, so it is 98 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 1,300 vehicles a day, projected to reach 1,560 by 2042. The structure is 44 ft (13.3 m) long and 31 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

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CarriesCth a
CrossesSaunders Creek
Location1.6M S JCT Ush 51
RouteCounty Highway 0A
CountyDane County
StateWisconsin
Coordinates42.90003, -89.08672
Functional classRural Major 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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.8 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length44 ft (13.3 m)
Longest span40 ft (12.2 m)
Deck width31 ft (9.3 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2022)
Projected traffic1,560 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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$284,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth a over Saunders Creek built?

It was built in 1927, making it 98 years old in 2025.

What condition is Cth a over Saunders Creek 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 a over Saunders Creek carry?

About 1,300 vehicles per day (2022 count).

How long is Cth a over Saunders Creek?

The structure is 44 ft (13.3 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.

Who owns Cth a over Saunders Creek?

It is owned by the County Highway Agency.