US Bridges

Sth 69 over Badger Mill Creek

Good

Dane County, Wisconsin · 3.1M N JCT Cth Pb to S · Structure no. B13036500000000

Built
1989
36 years old, rebuilt 2022
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
6,200
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 69 over Badger Mill Creek is a prestressed concrete stringer/multi-beam or girder carrying Sth 69 over Badger Mill Creek in Dane County, Wisconsin. It was built in 1989 and reconstructed in 2022, so it is 36 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,200 vehicles a day, roughly 4% of them trucks, projected to reach 8,450 by 2043. The structure is 54 ft (16.4 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSth 69
CrossesBadger Mill Creek
Location3.1M N JCT Cth Pb to S
RouteState Highway 69
Coordinates42.9645, -89.54836
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.7 US tons
Inventory rating34 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length54 ft (16.4 m)
Longest span52 ft (15.8 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,200 (2022)
Projected traffic8,450 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sth 69 over Badger Mill Creek built?

It was built in 1989, making it 36 years old in 2025. It was reconstructed in 2022.

What condition is Sth 69 over Badger Mill Creek 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 69 over Badger Mill Creek carry?

About 6,200 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Sth 69 over Badger Mill Creek?

The structure is 54 ft (16.4 m) long with a longest span of 52 ft (15.8 m) and a deck 43 ft wide.

Who owns Sth 69 over Badger Mill Creek?

It is owned by the State Highway Agency.