Jack Darling Park Is Where the Lakeshore Tunnel Starts, and the Last Place the Work Leaves

Behind the painted hoarding on the Lakeshore Road West side of Jack Darling Memorial Park, a shaft drops about 45 metres into the ground. Since July 20, 2026, a tunnel-boring machine has been working east from the bottom of that shaft. Peel Region has permission to run it overnight from 7 p.m. to 7 a.m. through summer 2028. INsauga reported that the drive runs about four kilometres east, under Lakeshore Road, toward Elmwood Avenue in Port Credit.

Jack Darling is where the tunnel begins, and it is also where Peel will build the new pumping station that receives everything the tunnel carries. So of all the construction sites between here and Port Credit, Lorne Park's waterfront park has the longest schedule. Peel's plans also keep the park open the whole time.

What the shaft is for

The work is Peel Region's Lakeshore Trunk Sewer and Zone 1 sub-transmission watermain project, listed as Project 19-2215. It includes a 2,400-millimetre sanitary sewer and a 750-millimetre watermain along Lakeshore Road, running from Jack Darling Memorial Park to Elmwood Avenue. Peel says construction started around October 14, 2025, at Jack Darling. The work moves east from there and is expected to last until late 2029. The contract went to C & M McNally Engineering Corp. in August 2025.

Peel's June 2026 project newsletter explains why the pipe is so large. The new sewer works by gravity, and it lets Peel replace seven old pumping stations along the corridor. The new pumping station planned for Jack Darling will receive the flows from that new trunk sewer.

Why the west end of the park has the longest timeline

Every access point along the route has its own compound and its own end date, and Peel's published dates put Jack Darling last.

The Jack Darling compound is the last one on that list to close, and the tunnel compound is only part of the work there. Peel's April 15, 2026 open-house presentation calls this project the first phase of a longer plan for the Lakeshore corridor. The next phase is a new Jack Darling sewage pumping station, built in the park to receive flows from the new trunk sewer, with impacts expected between 2026 and 2030. The stretch from Richard's Memorial Park to Port Credit will be back to normal years before this park is.

What has changed above ground this winter

The changes a park visitor sees this winter all come from that underground work.

The trail detour. The Lakeshore Road West Trail is rerouted around the boulevard compound at Jack Darling. Peel lists that detour as lasting from November 2025 to late 2029. A second detour at Richard's Memorial Park stays in place until fall 2027. So anyone walking the trail from Lorne Park toward Port Credit passes two sets of signs for now.

The mural. Peel and the Mississauga Art Council put local artwork on the construction hoarding. The piece at Jack Darling is "Mino-nawae-indawaewin / Living in Harmony" by artist Nyle Miigizi Johnston. Peel's newsletter calls it a reminder of the connection to the land and water the project is meant to protect.

The night shift. The City of Mississauga gave Peel a noise bylaw exemption for tunnelling inside the Jack Darling compound between 7 p.m. and 7 a.m. Peel says the overnight work should be quieter than daytime construction above ground, although "intermittent noise may still occur."

The road in front. Watermain work is also underway on the surface, separate from the tunnel. Peel's September 15 update cut Lakeshore Road West to one lane in each direction between Jack Darling Park and Lorne Park Road from October 1 through the end of November 2026. Street parking is not allowed in the work area. Peel says the lane reductions will move east in zones and continue in some form until summer 2028. Both timelines are approximate. On a late-November weekday, people driving to the park from the east should plan for the narrowed stretch.

The leash-free areas are next in line

Dog owners will feel the next phase most. The City lists two leash-free zones at Jack Darling, along with the beach, the paved Waterfront Trail, the tallgrass prairie and a winter toboggan hill. Peel has said in several places that both the trunk sewer and the pumping station will reach into those zones.

• The April open house said portions of the leash-free dog park would become temporary work areas. It also said park access would remain open, with impacts expected from summer 2026 to summer 2027.
• The June newsletter said leash-free access "will change" as work zones are set up, with notices sent ahead of time.
• The dog park has already closed once, on April 27 and 28, 2026, for pumping-station field investigation. Four parking spaces closed at the same time.
• The pumping station build will require temporarily closing parking lot D, nearby washrooms and parts of the trail network. Peel says alternate parking and facilities will be provided elsewhere in the park.

Because those changes come with short notice, Peel's construction e-notices are the most direct way to hear about them. Questions can go to [email protected] or 905-791-7800 extension 4409.

If part of the off-leash space is fenced on a given morning, the next waterfront option to the west is Lakeside Park at 2268 Lakeshore Road West. The City lists a leash-free zone, waterfront trails and hours from dawn to 11 p.m. daily. The Daly Grind Cafe at 1680 Lakeshore Road West is on the drive between the two parks. Rattray Marsh is closer to home, but it has different rules. Credit Valley Conservation requires pets there to stay on a leash no longer than six feet. Brueckner Rhododendron Gardens at 660 Lakeshore Road West is a floral garden, and the City of Mississauga's leash-free guidance says dogs are not permitted in floral gardens.

Snow on the hill above a working shaft

Jack Darling's toboggan hill is on the City's list of six toboggan hills, along with its advice to sit facing forward, keep arms and legs tucked in, and never stand on a sled. At the open house, Peel said the compound work sits south of Lakeshore Road West, needs no lane closures, and keeps pedestrian access open on temporary routes. Peel's safety notes for the site are short. Stay out of fenced areas, follow the posted routes, and keep children and pets away from the work zones.

What the park gets back

When the work is done, most of it will be out of sight. Peel describes the new Jack Darling pumping station as "largely underground," with surface features designed to fit into the park and keep public access where possible. Its preliminary final design includes landscaping and restored park features. The tunnel will be finished in about two years, but the park sits at the end of the whole system, so its recovery will take longer. Peel's construction window for the station runs to 2030.

Long projects next to the places families use every day can affect how a home near them is presented and timed. If you are close to Jack Darling or anywhere along the Lakeshore Road route and want to know how this construction schedule might shape a move, the Peterson Team would be glad to go through it with you. Start your family's next chapter. Book a conversation with the Peterson Team.