Here is their alert to motorists.
From the Morristown Police:
Tomorrow and Sunday, two events will impact traffic in Morristown. The Seeing Eye will host its annual Doggy Dash 5K event which will launch from Lidgerwood Park at 9:00 am.
This 5K event will close northbound James Street for approximately 15 minutes as runners make their way from Lidgerwood Parkway to Glenwood Road. The runners will then make their way through the Windmill Pond community and into Morris Township before returning on James Street in an established running lane.
The course will not be closed to vehicle traffic, however please use caution if traveling in this area tomorrow. Lidgerwood Parkway will be closed between James and Dogwood Road from 8:30 am until approximately 10:30 am.
Beginning at 11 am the following roads will be closed for the Garden State Fondo Hill Climb event: Ann Street entire length, Bank Street from Washington Street to Mt. Kemble Avenue, and Chestnut Street from the entrance to Fort Nonsense to Western Avenue.
Officers will be on hand to facilitate travel to both the Seniors Housing complex and to residents of the 48 Court St. apartments. The event begins at 1 pm and will last until approximately 4 pm.
On Sunday, beginning at 6 am, several roadways in and around the Morristown Green will be closed to vehicle traffic to accommodate the start of the Garden State Fondo Cycling event.
The Green will reopen at approximately 8 am, with the exception of North Park Place, which will remain closed until approximately 8 pm Sunday.
Speedwell Avenue southbound from Spring Street to the Green will also be closed for the duration of the event. Early Street from Prospect Street to Speedwell will be closed as well for the duration of the event. Detour signs will be posted and several uniformed police officers will be on hand to assist.