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Dam Restoration Project 2026

Updated 04/23/2026

The Swains Lake Dam is the vital infrastructure that maintains our water body. This page provides a resource and timeline of the 2026 restoration project. The goal of the Swains Lake Association (SLA) is to provide our members and the community with timely, accurate information during construction while acting as an independent advocate for the lake's health.

📜 Advocacy & Community Focus

The Swains Lake Association is an independent, non-profit organization. We are not connected to the town government, nor do we have control over the dam project.

Our role is strictly to act as a voice for our members. We speak to the Town on behalf of the community to get answers to questions about water quality, safety, and project impacts, then report those findings back to you. Our focus remains entirely on the health of the lake and the well-being of the residents who enjoy it.

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🏗️ Project Scope: What is Being Done?

According to official Town records, this restoration represents nearly a decade of planning and an investment of over $1 million. The project consists of three major components designed to extend the dam's life and improve water level management:

  • Culvert Replacement: Replacing the culvert at Lakeside Oaks Drive, funded by FEMA.

  • Erosion Protection: Installing a new rip-rap filter to protect the dam structure.

  • Gate Box Repairs: Critical underwater repairs to ensure the dam's gate remains operable for years to come.

  • Future Planning: Upon completion, the Town intends to update the professional drawdown plan to guide future dam operations.

📅 Dam Restoration Timeline: Chronological Updates

The SLA tracks this project and raises important community questions with the Town. Below is the real-time record of progress, based on site visits, visual documentation, and communication from the Barrington Department of Public Works.

 

February 2026: Mobilization & Hard Start

  • Feb 9 – Feb 23: Initial tree cutting in the designated work zones to clear the way for utility relocations.

  • Feb 23: Dam work officially begins. Lakeside Oaks tree cutting is completed.

  • Feb 25: High-powered pumping operations begin during a major blizzard. Three pumps are used to suck water from the lake, spillway, and gate area to allow construction access.

 

March 2026: Excavation & Advocacy

  • Mar 1 – Mar 5: Draining operations continue. The SLA contacts Public Works with safety concerns regarding "false ice" air pockets caused by the pumping.

  • Mar 6: DPW Director Mike Nadeau visits the site; identifies the water drawdown rate as "unacceptable" and coordinates with the contractor to monitor levels more closely.

  • Mar 7: Major Milestone: The Lakeside Oaks causeway is officially closed and excavation begins. Utility poles and power lines are successfully relocated.

 

April 2026: Paving & Infrastructure Upgrades

  • Apr 7: The new bridge/culvert is stoned and walkable. The Town announces the project will be extended to include new stop logs in the spillway for better long-term water management.

  • Apr 9 – Apr 11: Crews begin prepping for the stop log rails. Wooden forms are built to pour the cement tracks that will hold the logs.

  • Apr 12: "Insider" Tour: Matt (SLA) documents a rare look inside the dam structure and walks through the underside of the new bridge culvert. A massive 50lb beaver is spotted behind the dam.

  • Apr 14 – Apr 15: Major Milestone: Paving of Lakeside Oaks is completed. The road is fully reopened to traffic all the way to Hall Road.

  • Apr 16: Cement for the stop log rails is poured and allowed to cure overnight.

 

Current Status (As of April 23, 2026)

  • Water Management: In response to abnormally high lake levels, the contractor has removed almost all sandbags to allow maximum flow over the spillway.

  • Material Delay: The project is currently awaiting the delivery of the specific wood needed for the stop logs. A delivery update is expected from the vendor by Monday, April 27th.

  • Shoreline Work: Brush has been cleared from the earthen portion of the dam. New rock edges and topsoil are being added to stabilize the area.

 
❓ Frequently Asked Questions
  • Is the lake being drained lower than usual?

    • The Town confirmed on March 6th that they are only pumping enough to maintain the current level required for construction, not removing additional water.

  • When will the causeway reopen?

    • The current target date for the completion of the road work is April 10, 2026 (was originally 04/02/2026).

  • What about the air pockets under the ice?

    • The SLA specifically raised this with Public Works. The Town is monitoring the draw-down rate to ensure it remains within acceptable limits to mitigate safety risks.

 
🔗 External Resources
 

⚓ Support Your Lake Community

Keeping this resource updated and maintaining a line of communication with the Town requires dedicated time and resources. If you value having an independent advocate looking out for the lake's interests, please consider supporting us.

Get involved today:

  • Become a Member: Your $25 annual dues fund our ability to report on these issues.

  • Donate: Contributions go directly toward lake health and community outreach.

Pictures.

Sandbags holding back water. Stop log work.

Sandbags holding back water. Stop log work.

Lakeside Oaks is paved!

Lakeside Oaks is paved!

Lakeside Oaks is paved!

Lakeside Oaks is paved!

Forms being prepped to pour concrete for the new stop logs.

Forms being prepped to pour concrete for the new stop logs.

Lakeside Oaks is paved!

Lakeside Oaks is paved!

Excavation work for the stop logs.

Excavation work for the stop logs.

Fresh stone edging added to dam.

Fresh stone edging added to dam.

Fresh stone edging added to dam.

Fresh stone edging added to dam.

Giant sandbags held in place to hold back the water until stop logs arrive.

Giant sandbags held in place to hold back the water until stop logs arrive.

Gravel backfilled on edges of road. Bridge/culvert is ready for paving!

Gravel backfilled on edges of road. Bridge/culvert is ready for paving!

Backfilling of gravel.

Backfilling of gravel.

Picture of the stop logs (seen under the red pump).

Picture of the stop logs (seen under the red pump).

Cement work taking place to prep for the new stop logs.

Cement work taking place to prep for the new stop logs.

Gravel begins to be used to backfill the road up to the new bridge/culvert.

Gravel begins to be used to backfill the road up to the new bridge/culvert.

Gravel begins to go down on the road.

Gravel begins to go down on the road.

The old stop logs. You can see they start at the yellow top of the green ladder. You can see they ar

The old stop logs. You can see they start at the yellow top of the green ladder. You can see they ar

Road is ready for paving!

Road is ready for paving!

Lakeside Oaks culvert

Lakeside Oaks culvert

Spillway work completed!

Spillway work completed!

Lakeside Oaks culvert work.

Lakeside Oaks culvert work.

Inside the spillway work.

Inside the spillway work.

culvert work.

culvert work.

spillway cement work.

spillway cement work.

Pumps bypass hoses exiting dam.

Pumps bypass hoses exiting dam.

Tree cutting along Lakeside Oaks.

Tree cutting along Lakeside Oaks.

Blizzard weather doesn't stop this crew!

Blizzard weather doesn't stop this crew!

Dam gate being sucked dry of water for repairs.

Dam gate being sucked dry of water for repairs.

© 2026 by Swains Lake Association.

PO Box 2

Barrington, NH 03825​

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