US Bridges

Sth 78 over Vermont Creek

Good

Dane County, Wisconsin · 1.7M N JCT Cth J to E · Structure no. B13085500000000

Built
2022
3 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete Continuous
Length
35 ft
2 main spans
Daily traffic
2,300
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 78 over Vermont Creek is a concrete continuous culvert carrying Sth 78 over Vermont Creek in Dane County, Wisconsin. It was built in 2022, so it is 3 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 2,300 vehicles a day, roughly 11% of them trucks, projected to reach 2,700 by 2040. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 38.5 mi (62 km).

CarriesSth 78
CrossesVermont Creek
Location1.7M N JCT Cth J to E
RouteState Highway 78
Coordinates43.0634, -89.72498
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert9 ExcellentNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length35 ft (10.7 m)
Longest span17 ft (5.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2022)
Projected traffic2,700 by 2040
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed38.5 mi (62 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 78 over Vermont Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is Sth 78 over Vermont 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 December 2024.

How much traffic does Sth 78 over Vermont Creek carry?

About 2,300 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Sth 78 over Vermont Creek?

The structure is 35 ft (10.7 m) long with a longest span of 17 ft (5.2 m).

Who owns Sth 78 over Vermont Creek?

It is owned by the State Highway Agency.