US Bridges

Ush 51-MAIN ST over Saunders Creek

Fair

Rock County, Wisconsin · 0.2M N JCT Sth 59 · Structure no. B53008700000000

Built
1960
65 years old, rebuilt 1999
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
43 ft
1 main span
Daily traffic
8,000
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Ush 51-MAIN ST over Saunders Creek is a concrete slab carrying Ush 51-MAIN ST over Saunders Creek in Rock County, Wisconsin. It was built in 1960 and reconstructed in 1999, so it is 65 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 8,000 vehicles a day, roughly 5% of them trucks, projected to reach 8,254 by 2043. The structure is 43 ft (13 m) long and 60 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUsh 51-MAIN ST
CrossesSaunders Creek
Location0.2M N JCT Sth 59
RouteU.S. Route 51
CountyRock County
StateWisconsin
Coordinates42.83667, -89.06667
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.6 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length43 ft (13 m)
Longest span41 ft (12.4 m)
Deck width60 ft (18.3 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,000 (2022)
Projected traffic8,254 by 2043
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$327,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ush 51-MAIN ST over Saunders Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1999.

What condition is Ush 51-MAIN ST over Saunders Creek 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 October 2024.

How much traffic does Ush 51-MAIN ST over Saunders Creek carry?

About 8,000 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Ush 51-MAIN ST over Saunders Creek?

The structure is 43 ft (13 m) long with a longest span of 41 ft (12.4 m) and a deck 60 ft wide.

Who owns Ush 51-MAIN ST over Saunders Creek?

It is owned by the City or Municipal Highway Agency.