Seal of Dane County County of Dane
Dane County Parks

2020 Tenney Lock Schedule

1500 Sherman Ave. Madison 53703 | ph. (608) 221-7202
Updated: May 12, 2020

A lock permit is required for all watercraft using the lock. To reduce the spread of coronavirus, all Tenney Lock permits must be purchased online. There are currently no in-person permit sales at the locks so please plan ahead. A daily or annual permit must be shown to the lock attendant (printed or displayed on your device).

A permit will be required for each watercraft to travel up river from Lake Monona to Lake Mendota. Due to congestion above the Lock, a permit will not be required to travel down river from Lake Mendota to Lake Monona.

Please note: there will be no services available at the site restrooms and water will be closed until further notice.


Schedule for September 2020

Day Open Close
Thursday 12:00 p.m. (Noon) 7:00 p.m.
Friday 11:00 a.m. 8:00 p.m.
Saturday 10:00 a.m. 9:00 p.m.
Sunday 10:00 a.m. 8:00 p.m.


Schedule for October 2020

Last day is Sunday, October 25th.

Day Open Close
Saturday 12:00 p.m. (Noon) 6:00 p.m.
Sunday 12:00 p.m. (Noon) 6:00 p.m.

Lock Safety Guidelines

  • Shut off motor.
  • No amplified music.
  • Keep hands, feet and other body parts inside boat and remain seated.
  • Expect some movement of the boat as water level changes. Chains on the lock walls are provided to assist with boat stability.
  • No smoking while in the lock chambers. Exhaust fumes or gas from unspent fuel could ignite or explode.
  • Do not exit boat while in the lock. Bathrooms are available for your use after boat is through the lock. (Currently closed due to COVID-19)

Lock Permit Fees

  • $10 - Daily
  • $30 - Annual
  • $12 - Duplicate