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With summer looming, Walden Pond bathhouse hits homestretch

State swimming areas are scheduled to formally open tomorrow. Daily lifeguard service starts in mid-June.

Open water swimmer Jason Andrews of Acton gets a close up look at the new bathhouse under construction after swimming across Walden Pond on Wednesday, May 13, 2026. Ken McGagh/The Acton Bridge
Jason Andrews of Acton, fresh from his May 13 swim across Walden Pond, gets a close-up look as workers race to complete the new bathhouse in time for Memorial Day weekend. Photo: Ken McGagh/The Acton Bridge

Construction workers were in their final sprint as of last week to get a new Walden Pond bathhouse ready for this year’s summer crush. 

The building represents the first phase of a state-run beachfront overhaul. Officials closed Walden’s Main Beach last year due to construction.

The project hit some delays, but a state Department of Conservation and Recreation spokesperson told The Acton Bridge last week that the bathhouse should be open in time for Memorial Day weekend, pending issuance of an occupancy permit.

“It will be a good upgrade,” swimmer Trish Babb told The Acton Bridge moments after she finished a marathon open-water trip.

Open water swimmers Emily Macomber of Woburn and Trish Babb of Milton emerge from the water at Walden Pond on Wednesday, May 13, 2026. Ken McGagh/The Acton Bridge
Swimmers Emily Macomber of Woburn and Trish Babb of Milton emerge from Walden Pond. Photo: Ken McGagh/The Acton Bridge

State swimming areas are scheduled to formally open May 23. Daily lifeguard service starts in mid-June.

The previous Walden bathhouse dated to 1947 and wasn’t accessible under the Americans with Disabilities Act. Its replacement will help address erosion and pollution at a beach that hundreds of thousands visit each year, state officials say.

Construction workers braved rain last Wednesday morning to put the finishing touches on their building. 

DCR and construction workers at work on the new bathhouse at Walden Pond on Wednesday, May 13, 2026. Ken McGagh/The Acton Bridge
Department of Conservation and Recreation staff and construction crews at work on the bathhouse at Walden Pond on May 13. Photo: Ken McGagh/The Acton Bridge
A construction worker walks by the bathhouse’s men’s room at Walden Pond on Wednesday, May 13, 2026. Ken McGagh/The Acton Bridge
A construction worker walks past the ADA-compliant men’s room. Photo: Ken McGagh/The Acton Bridge

‘Best place to swim’

Babb is excited but also hopes the new building won’t attract even more crowds to an already busy spot.

Walden is “the best place to swim,” she said, and “I want my sanctuary kept as a sanctuary.”

Gitanjali Rege said her family visits Walden only in the offseason because “it’s such a zoo” in the summer.

Swimmers leery of Walden throngs can try West Acton’s White Pond, where anyone can buy day or season passes to swim. 

White Pond will also open this weekend and stay on a weekend schedule until mid-June. 

Concordian Jason Andrews swims across 61-acre Walden Pond a few days each week and eyed construction last Wednesday from the rain-soaked beach. 

Concordian Jason Andrews swims across Walden Pond on Wednesday, May 13, 2026. Ken McGagh/The Acton Bridge
Concordian Jason Andrews swims across Walden Pond on Wednesday, May 13. Photo: Ken McGagh/The Acton Bridge

He’s had to take a detour to get to his starting spot since work began. It will be nice to be able to walk straight to the water again, he said, “without having to schlep around.”

He’s not bothered by the crowds and remarked on the mix of languages — from German to French to Chinese — that he hears tourists speaking during the busy season.

Crowds and construction aside, he said Walden’s water level is “really low” as the region slogs through a state-recognized drought.

The new bathhouse, with a lawn on the roof, blends in with the scenery at Walden Pond on Wednesday, May 13, 2026. Ken McGagh/The Acton Bridge
The new bathhouse has a lawn on the roof to help manage stormwater runoff. Photo: Ken McGagh/The Acton Bridge

The second phase of Walden’s beachfront overhaul is scheduled to include a new accessible boardwalk connecting Main Beach to Walden Street. Officials previously said construction would happen “following the bathhouse reconstruction.” 

DCR’s spokesperson didn’t answer Bridge questions about the current timeline. 

Ken McGagh contributed reporting.

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