The New Canal in Western Palm City Was Pumping Months Before the Ribbon-Cutting

When did the new canal out past western Palm City actually start working? Most of us would answer September 9, the day Gov. Ron DeSantis came to cut the ribbon. According to the man who runs the agency that built it, the real answer is May 14.

CBS12 reported that Drew Bartlett, executive director of the South Florida Water Management District, put it this way at the ceremony:

"It has worked since May 14. I looked at the water quality data. It's working."

So by the time anyone gathered for photos, the C-23 Canal Estuary Discharge Diversion Project had already spent the whole summer rainy season moving water. That timing matters if you fish, paddle or keep a boat on the St. Lucie. The project has a narrower job than "cleaning up the river," though, and its job explains why the water at Palm City's own shoreline is still its own question.

Four Months of Pumping Before the Ceremony

Here's how 2026 played out, pieced together from the agencies and local stations that covered it.

The SFWMD announcement says the project "recently completed a successful operational testing period" before the ceremony. That puts the 4.8 billion gallons in a window of under four months. Those months fell inside the wet season, which the district's 2022 South Florida Environmental Report defines as May through October and credits with about 74% of the year's rainfall on average.

What the Canal Catches, and Where That Water Used to Go

The C-23 is a drainage canal serving a large basin west of the river. Per the district, the project adds a new canal about 7 miles long and a pump station with three pumps rated at 112,000 gallons per minute. Excess water that would have gone out the C-23 now goes south to the C-44 Reservoir and Stormwater Treatment Area, where it can be held and treated before any of it reaches the river. WPBF described the same route, from the C-23 basin south to the reservoir and treatment area.

The same district report says the C-23 empties into the lower North Fork of the St. Lucie through a control structure called S-48. Some September coverage said the flows went toward the South Fork. The district's own description of its structure points to the North Fork.

So the canal is built in western Palm City, but what it intercepts used to reach the river on the North Fork side. The South Fork, where Palm City's riverfront lies, is a different reach of water with its own inputs.

The same report shows how big a share C-23 carried. In water year 2021, the C-23 supplied 15% of all freshwater flowing into the estuary, compared with a 12% average from water year 1997 through 2021. That's a meaningful slice of what flowed in during those years. The new pumps are aimed at that slice, and only that slice.

The Numbers Officials Put on It

Every official at the ceremony offered a figure. They don't all match, so the table names who said what.

The two capacity numbers come close when you do the math. At 112,000 gallons a minute, the pumps move about 161 million gallons a day, a little under Bartlett's 166 million. The cost figures range from $50 million to about $57 million depending on the outlet, and TCPalm described the canal as six miles long, not seven.

The nutrient figures are projections. In WPTV's coverage, DeSantis said the canal and pump station would help bring the estuary's flow "closer to its natural pattern." Neither the ceremony nor the district's announcement included measured results on salinity or water clarity from after the pumps came on.

Why Leighton Park Gets Tested Separately

A project of this size can sound like a blanket fix for everything downstream. Martin County's own sampling shows why it isn't. The Florida Department of Health in Martin County regularly tests recreational water, and this summer two of its advisories named spots many of us know well.

• August 19: DOH-Martin issued an advisory for Charlie Leighton Park at 2701 SW Cornell Ave. in Palm City and for the Roosevelt Bridge in Stuart. Tests completed August 17 found Enterococcus bacteria above state recreational criteria, and the department advised against water activities at both locations until levels came back down.
• September 17: A second advisory covered the Roosevelt Bridge after testing on September 14.
• September 18: DOH-Martin issued a blue-green algae toxin alert for Lake Okeechobee sampling point NES135, from samples taken September 15. That alert covered the lake, not the St. Lucie.

The pumps had been running for three months when the Leighton Park advisory came out. The canal handles one source of water headed for one part of the river, and the Leighton Park advisory measured bacteria at a single sampling spot on a single day. These advisories are snapshots that stay in place until new samples clear them. For whether a given spot is open today, DOH-Martin's beach and river sampling page is the place to look.

The Reservoir at the Other End of the Canal

Everything the new canal moves ends up in the C-44 Reservoir and Stormwater Treatment Area, so that half of the system matters just as much. The two state sources describe its status a little differently. The September announcement calls the C-44 Reservoir operational. The district's FY2026–27 tentative budget, dated August 1, 2026, says operational testing of the reservoir and treatment area together was still under way, and it describes an updated operations manual for the C-44 Reservoir and treatment area that includes optimized operations for the C-23 diversion canal. The reservoir that stores the water and the treatment area that cleans it are separate pieces, and they are moving through testing on their own schedules.

Martin County Environmental Resource Administrator John Maehl explained the reasoning in CBS12's January report. Too much fresh water upsets the vegetation in the estuary, and nutrients feed algal blooms. He described storing and treating diverted water as a way to manage it as a resource. CBS12 also reminded viewers of the toxic algae outbreaks of 2016 and 2018. Most people on the river remember those years without being reminded.

The project hasn't changed the bigger outside factor, Lake Okeechobee. On October 14, the Army Corps daily status report listed the lake at 12.38 feet, with scheduled releases east through S-80 and west through S-79 both at zero cubic feet per second. The Corps labels those numbers provisional, and the report updates every day.

Three Places to Check Before a Weekend on the River

The canal works in the background, so the useful habit is knowing where the current information is posted:

1. DOH-Martin's beach and river sampling page for advisories at specific spots, Charlie Leighton Park and the Roosevelt Bridge among them.
2. The Army Corps daily status report for the current lake level and any scheduled release through the St. Lucie Lock at S-80.
3. Florida Oceanographic Society's weekly water-quality reports, which give letter grades for habitat health by zone, with the South Fork and North Fork graded separately. A spring 2026 report shows the format. Because each fork gets its own grade, these reports are a good place to watch whether the North Fork, where C-23 water used to enter, starts to look different over the coming seasons.

Newton Cook, a Tequesta resident who fishes the Intracoastal near Jensen Beach, told CBS12 there has "been a tremendous improvement in the water in different areas but there's still a long way to go." The first full year of numbers for the canal will show where it has helped.

At MOOREMAX Group, we live and work along this river too, and we follow what changes on it the same way you do. If you have questions about the river behind your home, or you want to compare notes on what you're seeing from your dock, let's start a conversation.