Tides In & Out



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The Next Tidal Flushing – Reviving Your Wetlands Lagoon Restoration – Begins Friday, August 31

Our last tidal flushing August 10-12 was a success! One of our goals with that flushing was to allow salt water to flow a bit farther into the southeast side of the Central basin and provide much-needed water to habitat that the July 26 flushing did not reach.

View of the previous tidal flushing from Gemma Parks Loop

The next flushing is scheduled to begin Friday, August 31. It will be a smaller partial flushing, meaning that only one of the dike gates will be removed, allowing a small amount of water to find its way into the lagoon over the Labor Day weekend.

The bubble net will be in place. It is a fish diversion aerator system, or bubble curtain, beneath the channel. This bubble curtain is a best management practice to keep fishes from making their way through the dike and into the active work area where dissolved oxygen levels are low. There will not be additional nighttime lighting during this flushing. 

Typically, tidal flushing occurs when the higher tides are expected. The next full tidal flushing will begin Friday, September 7 during a series of 6′ and higher tides. Neighbors can expect nighttime lighting during this tidal flush, nearest to the temporary dike, located in front of the nature center.

Come out to the trails next weekend to view the full lagoon flushing. A great vantage point is from the overlook at Annie’s Canyon Trail, or the Gemma Parks Loop off Rios Avenue Trail.

View from Annie’s Canyon Trail, approximately 200-feet above sea level. Notice the new mudflat in the middle of the channel.

The Ross Island No.10 continues to dredge high nutrient sediments from the lagoon channel and deposits the sediments into the onsite pit.

The Ross Island No. 10 Dredge is in action. Blue arrow shows the completed deeper and wider channel with sculpted mudflats along the sides. Orange arrow shows the area that is next to be dredged.

 Yellow arrow shows the area that will be converted into a new channel.

View from the Nature Center Loop Trail of the new deeper and wider channel.

Egrets enjoy the sculpted mudflat habitat side areas of the deeper and wider channel.

That’s what this is all about: bird watching, nature reflections and enhanced habitats for all of us. Thank you for loving your lagoon, for your patience as we make it healthier, and for your support of San Elijo Lagoon Conservancy.

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