A semi-tractor trailer loaded with beer rolled onto its side and collided with the median guardrail on Highway 151 just east of the interstate.

The truck had just exited the interstate onto northbound Highway 151 when the accident occurred at about 8 a.m., police said.

There were no other vehicles involved and the driver of the semi was not hurt, police said.

No beer was spilled, but there was a minor spill of fuel from the truck's fuel tanks.

There were no significant traffic delays, police said.

ScooterCabs, a local business created by three University of Wisconsin-Madison grads, aims to provide an affordable alternative to taking a taxi home or driving under the influence. 

The service was created as an extra option for patrons that drive out to a bar or restaurant and have a few too many drinks.  The concept is similar to a taxi, except for one fundamental difference; the taxi is now the patron’s own vehicle.  There is no longer a need for patrons to abandon their vehicle at the bar or restaurant to make it home safely.

"With Wisconsin’s high rates of drunk driving, Madison seemed to have a need for this type of service," said owner Justin Sisley, "but even for the majority of people who would make the responsible decision to call a cab, our service provides a much more convenient option for them.  No more waiting around for a friend or cab to take you back to your car in the morning."