US Bridges

Sth 48 over Red Cedar Narrows

Fair

Washburn County, Wisconsin · 0.7M E JCT Cth T · Structure no. B65001800000000

Built
1981
44 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
192 ft
3 main spans
Daily traffic
2,800
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 48 over Red Cedar Narrows is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 48 over Red Cedar Narrows in Washburn County, Wisconsin. It was built in 1981, so it is 44 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 2,800 vehicles a day, roughly 7% of them trucks, projected to reach 3,120 by 2042. The structure is 192 ft (58.4 m) long and 43 ft wide. If it were closed, the detour would be 23.6 mi (38 km).

Location

Open in Google Maps
CarriesSth 48
CrossesRed Cedar Narrows
Location0.7M E JCT Cth T
RouteState Highway 48
CountyWashburn County
StateWisconsin
Coordinates45.64113, -91.58791
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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to 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 rating61.2 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length192 ft (58.4 m)
Longest span84 ft (25.6 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2021)
Projected traffic3,120 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23.6 mi (38 km)
TollOn a free road
National Highway SystemNo

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 48 over Red Cedar Narrows built?

It was built in 1981, making it 44 years old in 2025.

What condition is Sth 48 over Red Cedar Narrows 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 2023.

How much traffic does Sth 48 over Red Cedar Narrows carry?

About 2,800 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Sth 48 over Red Cedar Narrows?

The structure is 192 ft (58.4 m) long with a longest span of 84 ft (25.6 m) and a deck 43 ft wide.

Who owns Sth 48 over Red Cedar Narrows?

It is owned by the State Highway Agency.