US Bridges

Sth Nb/Eb Sth 13/1 over Wisconsin River 15

Fair

Columbia County, Wisconsin · 0.3M N JCT Ush 12 · Structure no. B11010400000000

Built
1991
34 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
644 ft
3 main spans
Daily traffic
21,200
2021 count
Owner
State
State Highway Agency

About this bridge

Sth Nb/Eb Sth 13/1 over Wisconsin River 15 is a steel stringer/multi-beam or girder carrying Sth Nb/Eb Sth 13/1 over Wisconsin River 15 in Columbia County, Wisconsin. It was built in 1991, so it is 34 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 21,200 vehicles a day, roughly 3% of them trucks, projected to reach 25,440 by 2041. The structure is 644 ft (196.4 m) long and 34 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesSth Nb/Eb Sth 13/1
CrossesWisconsin River 15
Location0.3M N JCT Ush 12
RouteState Highway 13
CountyColumbia County
StateWisconsin
Coordinates43.62764, -89.78161
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.1 US tons
Inventory rating46.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length644 ft (196.4 m)
Longest span245 ft (74.7 m)
Deck width34 ft (10.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,200 (2021)
Projected traffic25,440 by 2041
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Nb/Eb Sth 13/1 over Wisconsin River 15 built?

It was built in 1991, making it 34 years old in 2025.

What condition is Sth Nb/Eb Sth 13/1 over Wisconsin River 15 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 April 2024.

How much traffic does Sth Nb/Eb Sth 13/1 over Wisconsin River 15 carry?

About 21,200 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Sth Nb/Eb Sth 13/1 over Wisconsin River 15?

The structure is 644 ft (196.4 m) long with a longest span of 245 ft (74.7 m) and a deck 34 ft wide.

Who owns Sth Nb/Eb Sth 13/1 over Wisconsin River 15?

It is owned by the State Highway Agency.