US Bridges

South 8th Ave over Tarr Creek

Good

Monroe County, Wisconsin · So 8 Ave over Tarr Creek · Structure no. DAPFORCOY0BR005

Built
1996
29 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
81 ft
1 main span
Daily traffic
1,010
2018 count
Owner
Federal
Army

About this bridge

South 8th Ave over Tarr Creek is a prestressed concrete box beam or girders - multiple carrying South 8th Ave 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 1,010 vehicles a day, roughly 10% of them trucks, projected to reach 1,010 by 2046. The structure is 81 ft (24.7 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSouth 8th Ave
CrossesTarr Creek
LocationSo 8 Ave over Tarr Creek
Coordinates44.00992, -90.69606
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating44 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length81 ft (24.7 m)
Longest span77 ft (23.5 m)
Deck width44 ft (13.3 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,010 (2018)
Projected traffic1,010 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 8th Ave over Tarr Creek built?

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

What condition is South 8th Ave 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 8th Ave over Tarr Creek carry?

About 1,010 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is South 8th Ave over Tarr Creek?

The structure is 81 ft (24.7 m) long with a longest span of 77 ft (23.5 m) and a deck 44 ft wide.

Who owns South 8th Ave over Tarr Creek?

It is owned by the Army.