The Alton Marina

08/17/2026

We wanted to make everyone aware that the water level in the harbor has significantly dropped overnight due to a late-scheduled draw down by the United States Army Corps of Engineers. Because of the lower water level, getting boats on and off lifts may be more difficult than usual, particularly for boats with limited clearance.

Please use extra caution when operating your boat or attempting to use your lift. The same caution applies to the public launch ramp, where the lower water level may affect launching and retrieving vessels. Anyone who would like to get their boats temporarily off of a lift and move to H Dock until water levels stabilize should call the office for further instructions.

Water levels are controlled by the United States Army Corps of Engineers, and these changes likely coincide with the recent heavy rainfall in the upper river basin and adjustments being made to manage river levels.

As always, we will continue to monitor conditions and keep everyone informed of any significant changes.

Please use caution and don’t hesitate to contact the Marina office with any questions.

08/12/2026

We have set up a go fund me for one of our dock hands who lost everything when his house burned down.

At the marina, we are like family. One of our dock hand’s house burnt down, c… Sukey Butler needs your support for Support Lord’s Fresh Start After the Fire

08/10/2026

Dear Boaters and Customers,
Please note that the marina deli will be closed on Wednesday, August 12.
The marina store will remain open during normal business hours until 6:00 PM, so fuel, ice, beverages, and other convenience items will still be available as usual.
We apologize for any inconvenience and appreciate your understanding. The deli will resume normal operations on its regular schedule on Thursday, August 13.

08/09/2026

This was the lightening strike July 4th that sunk a sail boat. No one was injured.

07/26/2026

Good morning,

Due to the rapidly rising river levels and the severe weather that moved through this morning, a significant amount of floating debris has entered the harbor.

Please use extreme caution when entering and leaving the harbor. Floating logs, branches, and other debris can cause serious damage to propellers, lower units, hulls, and other underwater components. While some larger debris is visible and can be removed by our staff, the smaller debris presents the greatest risk because it is much harder to detect and, due to the sheer volume, nearly impossible to remove completely.

Our staff and volunteer slip holders have been actively removing larger debris whenever it is safe to do so, but we ask for your patience as the current conditions make complete cleanup extremely difficult. As wind and river conditions improve, we expect much of the lighter debris to naturally disperse over the coming days.

In the meantime, please operate at idle speed whenever practical, keep a sharp lookout, and allow yourself extra time when navigating in and out of the harbor. Your caution is the best protection against potential damage to your vessel.

We appreciate your patience, understanding, and cooperation as our harbor staff continues working to improve conditions.

Thank you, and please stay safe on the water.

Alton Marina Management

07/20/2026

Thank you, Matt Taul and friends!!
🎶🎵YOU ROCK!!🎵🎶

07/17/2026

Dear Slip Holders,

The U.S. Army Corps of Engineers has begun building pool and water levels on the Mississippi River. As a result, river levels are expected to continue rising over the next several days.

The current river level is approximately 416 feet above sea level, which provides approximately 5 to 6 feet of water (plus or minus) within the harbor. We will continue to monitor conditions closely and keep everyone informed of any significant changes.

At this time, the public launch ramp remains open. However, please note that the City of Alton will close the public launch ramp on Friday, Saturday, and Sunday for the F1 Powerboat Racing event. Please plan accordingly if you intend to launch or retrieve your boat during that time.

Thank you for your cooperation. We hope everyone has a safe and enjoyable weekend.

07/01/2026

If you are a slip holder, you will need to go to the office and get a parking pass to park at the marina on Friday night for the fireworks. Limit 2. If you do not have a pass, a parking spot will not be guaranteed. We look forward to seeing you.

07/01/2026

We are going back up finally. Slowly. 413 is when we are on the bottom and 418 is pretty much full pool.

Next 5 days (subject to change due to everchanging conditions):
07/02/2026 06:00, 415.20 (ft)
07/03/2026 06:00, 415.70 (ft)
07/04/2026 06:00, 416.10 (ft)
07/05/2026 06:00, 416.50 (ft)
07/06/2026 06:00, 417.00 (ft)

06/21/2026

Slip holders, as you know we had some high winds go through around 2:00 pm today. Docks have been walked, items picked up. If you didn’t hear from us then your boat is just fine. 😃👍🏻 🚤 🛥️