US Bridges

Sth 64-W Main ST over Prairie River

Fair

Lincoln County, Wisconsin · 0.1M E JCT Sth 107 to N · Structure no. B35000200000000

Built
1904
121 years old, rebuilt 2001
Condition
Fair
inspected May 2023
Type
Arch - Deck
Masonry
Length
139 ft
3 main spans
Daily traffic
7,300
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 64-W Main ST over Prairie River is a masonry arch - deck carrying Sth 64-W Main ST over Prairie River in Lincoln County, Wisconsin. It was built in 1904 and reconstructed in 2001, so it is 121 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 5 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 7,300 vehicles a day, roughly 3% of them trucks, projected to reach 16,280 by 2042. The structure is 139 ft (42.4 m) long and 55 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSth 64-W Main ST
CrossesPrairie River
Location0.1M E JCT Sth 107 to N
RouteState Highway 64
CountyLincoln County
StateWisconsin
Coordinates45.1789, -89.70395
Functional classUrban Other Principal 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
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54 US tons
Inventory rating35.7 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans3
Design loadH 20
Structure length139 ft (42.4 m)
Longest span44 ft (13.3 m)
Deck width55 ft (16.7 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,300 (2022)
Projected traffic16,280 by 2042
Trucks3%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

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

Frequently asked questions

When was Sth 64-W Main ST over Prairie River built?

It was built in 1904, making it 121 years old in 2025. It was reconstructed in 2001.

What condition is Sth 64-W Main ST over Prairie River 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 May 2023.

How much traffic does Sth 64-W Main ST over Prairie River carry?

About 7,300 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Sth 64-W Main ST over Prairie River?

The structure is 139 ft (42.4 m) long with a longest span of 44 ft (13.3 m) and a deck 55 ft wide.

Who owns Sth 64-W Main ST over Prairie River?

It is owned by the State Highway Agency.