US Bridges

Sth 11 WB (avalon over IH 39 / IH 90

Good

Rock County, Wisconsin · 2.6 M E JCT Ush 51 · Structure no. B53032400000000

Built
2016
9 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
235 ft
2 main spans
Daily traffic
2,500
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 11 WB (avalon over IH 39 / IH 90 is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 11 WB (avalon over IH 39 / IH 90 in Rock County, Wisconsin. It was built in 2016, so it is 9 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,500 vehicles a day, roughly 11% of them trucks, projected to reach 4,325 by 2040. The structure is 235 ft (71.5 m) long and 38 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSth 11 WB (avalon
CrossesIH 39 / IH 90
Location2.6 M E JCT Ush 51
RouteState Highway 11
CountyRock County
StateWisconsin
Coordinates42.63556, -88.98111
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.1 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length235 ft (71.5 m)
Longest span115 ft (35.1 m)
Deck width38 ft (11.5 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2022)
Projected traffic4,325 by 2040
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sth 11 WB (avalon over IH 39 / IH 90 built?

It was built in 2016, making it 9 years old in 2025.

What condition is Sth 11 WB (avalon over IH 39 / IH 90 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 October 2024.

How much traffic does Sth 11 WB (avalon over IH 39 / IH 90 carry?

About 2,500 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Sth 11 WB (avalon over IH 39 / IH 90?

The structure is 235 ft (71.5 m) long with a longest span of 115 ft (35.1 m) and a deck 38 ft wide.

Who owns Sth 11 WB (avalon over IH 39 / IH 90?

It is owned by the State Highway Agency.