US Bridges

Cth a over Mt. Vernon Creek

Good

Dane County, Wisconsin · 0.2M E JCT Sth 92 · Structure no. B13068700000000

Built
2021
4 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
88 ft
1 main span
Daily traffic
575
2021 count
Owner
County
County Highway Agency

About this bridge

Cth a over Mt. Vernon Creek is a prestressed concrete stringer/multi-beam or girder carrying Cth a over Mt. Vernon Creek in Dane County, Wisconsin. It was built in 2021, so it is 4 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 575 vehicles a day, roughly 19% of them trucks, projected to reach 625 by 2041. The structure is 88 ft (26.8 m) long and 33 ft wide. If it were closed, the detour would be 13.7 mi (22 km).

Location

Open in Google Maps
CarriesCth a
CrossesMt. Vernon Creek
Location0.2M E JCT Sth 92
RouteCounty Highway 0A
CountyDane County
StateWisconsin
Coordinates42.91544, -89.61908
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.7 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length88 ft (26.8 m)
Longest span84 ft (25.6 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic575 (2021)
Projected traffic625 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13.7 mi (22 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Cth a over Mt. Vernon Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is Cth a over Mt. Vernon 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 September 2023.

How much traffic does Cth a over Mt. Vernon Creek carry?

About 575 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is Cth a over Mt. Vernon Creek?

The structure is 88 ft (26.8 m) long with a longest span of 84 ft (25.6 m) and a deck 33 ft wide.

Who owns Cth a over Mt. Vernon Creek?

It is owned by the County Highway Agency.