US Bridges

Sth EB Sth 64 over Marsh

Fair

St. Croix County, Wisconsin · 1.0 M E. of Sth 35 · Structure no. B55021800000000

Built
2005
20 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
474 ft
4 main spans
Daily traffic
7,850
2022 count
Owner
State
State Highway Agency

About this bridge

Sth EB Sth 64 over Marsh is a prestressed concrete stringer/multi-beam or girder carrying Sth EB Sth 64 over Marsh in St. Croix County, Wisconsin. It was built in 2005, so it is 20 years old, younger 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 7,850 vehicles a day, projected to reach 9,420 by 2043. The structure is 474 ft (144.6 m) long and 43 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesSth EB Sth 64
CrossesMarsh
Location1.0 M E. of Sth 35
RouteState Highway 64
CountySt. Croix County
StateWisconsin
Coordinates45.12289, -92.63582
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating73.9 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length474 ft (144.6 m)
Longest span118 ft (35.9 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,850 (2022)
Projected traffic9,420 by 2043
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sth EB Sth 64 over Marsh built?

It was built in 2005, making it 20 years old in 2025.

What condition is Sth EB Sth 64 over Marsh 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 September 2024.

How much traffic does Sth EB Sth 64 over Marsh carry?

About 7,850 vehicles per day (2022 count).

How long is Sth EB Sth 64 over Marsh?

The structure is 474 ft (144.6 m) long with a longest span of 118 ft (35.9 m) and a deck 43 ft wide.

Who owns Sth EB Sth 64 over Marsh?

It is owned by the State Highway Agency.