US Bridges

South a Street over Tarr Creek

Good

Monroe County, Wisconsin · So. a St. over Tarr Creek · Structure no. DAPFORCOY0BR006

Built
1996
29 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
76 ft
1 main span
Daily traffic
2,000
2018 count
Owner
Federal
Army

About this bridge

South a Street over Tarr Creek is a prestressed concrete stringer/multi-beam or girder carrying South a Street over Tarr Creek in Monroe County, Wisconsin. It was built in 1996, so it is 29 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,000 vehicles a day, roughly 10% of them trucks, projected to reach 2,000 by 2046. The structure is 76 ft (23.1 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSouth a Street
CrossesTarr Creek
LocationSo. a St. over Tarr Creek
Coordinates44.00958, -90.70521
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.3 US tons
Inventory rating52.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length76 ft (23.1 m)
Longest span74 ft (22.6 m)
Deck width54 ft (16.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2018)
Projected traffic2,000 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerArmy
Maintained byArmy
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$2,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was South a Street over Tarr Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is South a Street over Tarr Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does South a Street over Tarr Creek carry?

About 2,000 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is South a Street over Tarr Creek?

The structure is 76 ft (23.1 m) long with a longest span of 74 ft (22.6 m) and a deck 54 ft wide.

Who owns South a Street over Tarr Creek?

It is owned by the Army.