US Bridges

Cth Bb Cottage Gr over IH 90

Fair

Dane County, Wisconsin · 1.5M E JCT Ush 51 · Structure no. B13011200000000

Built
1961
64 years old, rebuilt 2006
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
208 ft
4 main spans
Daily traffic
13,718
2022 count
Owner
State
State Highway Agency

About this bridge

Cth Bb Cottage Gr over IH 90 is a prestressed concrete stringer/multi-beam or girder carrying Cth Bb Cottage Gr over IH 90 in Dane County, Wisconsin. It was built in 1961 and reconstructed in 2006, so it is 64 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 13,718 vehicles a day, projected to reach 7,535 by 2043. The structure is 208 ft (63.4 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCth Bb Cottage Gr
CrossesIH 90
Location1.5M E JCT Ush 51
RouteCounty Highway 0BB
CountyDane County
StateWisconsin
Coordinates43.08447, -89.28398
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating73.9 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length208 ft (63.4 m)
Longest span67 ft (20.4 m)
Deck width43 ft (13.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,718 (2022)
Projected traffic7,535 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cth Bb Cottage Gr over IH 90 built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2006.

What condition is Cth Bb Cottage Gr over IH 90 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 December 2024.

How much traffic does Cth Bb Cottage Gr over IH 90 carry?

About 13,718 vehicles per day (2022 count).

How long is Cth Bb Cottage Gr over IH 90?

The structure is 208 ft (63.4 m) long with a longest span of 67 ft (20.4 m) and a deck 43 ft wide.

Who owns Cth Bb Cottage Gr over IH 90?

It is owned by the State Highway Agency.