Phase 2 Wave Modifications Update - May 2024

Guide to Phase 1 and Phase 2 Whitewater Park Features

Thank you for your interest in the planned modifications at the Phase 2 adjustable wave feature at the J.A. and Kathryn Albertson Family Foundation Boise Whitewater Park. This message serves as an update on the project and current status of planned in-river modifications. Warm, wet weather and above average snowfall in January, combined with longer than expected agency review timelines related to the permitting process, have created a unique situation that unfortunately will push the project to the Winter 2024/Winter 2025 season. We understand this is most likely a frustrating update for whitewater enthusiasts and appreciate your continued patience as the Boise Parks and Recreation Department works with engineers to shift the project timeline and inform users to help adjust expectations in 2024.


Boise Parks and Recreation wave techs are holding monitored sessions at Phase 2 of the whitewater park again during the 2024 summer season. Phase 2 monitored sessions are offered from 9-11 a.m. on Wednesdays through Sundays, conditions permitting. Additional monitored sessions have been added for Tuesday and Saturday evenings, 5-7 p.m., conditions permitting. Our team will do its best to accommodate a variety of whitewater enthusiasts as conditions allow. It’s important to remember that first and foremost, the Boise Whitewater Park wave features serve as an important tool for water management, and the city must meet its water right requirements and the irrigation needs of the Thurman Mill Irrigation District.

Our wave techs follow all safety protocols and check conditions regularly to implement the best wave features possible given all the factors that impact the park. Users enter the park at their own risk and should always act as if they are entering a dynamic whitewater situation. Please remember, your safety while recreating on the river is your responsibility and based on your judgement.


In consultation with state partners and legal counsel, it has been determined that the City of Boise/Boise Parks and Recreation Department will no longer issue river permits to guides and outfitters who plan to run the stretch of river through the Boise Whitewater Park. The department only requires additional approvals or reservations should a person or group plan to utilize the park or its features for a special event or private reservation and fees apply. Recreational passage through the park’s features is at the discretion of the guide, outfitter or recreationist. Our team plans to assess current signage at the park and make appropriate updates with the continued goal of safety for all users as our top priority.


Parks and Recreation’s goal is to create a reliable recreational experience for all users at Phase 2 of the park, so whitewater park wave operators will no longer need to host monitored sessions at the Phase 2 adjustable wave. The Phase 2 adjustable wave is currently an expert-only feature due to the power and intensity of the wave. McMillen engineers have created a plan for adjustments to the Phase 2 wave that meet the city’s goals, while creating a fun and challenging in-river feature for river recreationists. Please read the updated Boise Whitewater Park Phase 2 FAQ to learn more about planned design modifications and what users can expect in the coming years.  

We appreciate your input and involvement in this project and look forward to providing additional updates as they are available. Thank you for your continued support of the Boise Whitewater Park and river recreation. To learn more about the Boise Whitewater Park, click here.

Please use the buttons below to view design documents and hydraulic analysis from engineers working on the project.

2023 Phase 2 Permit Application Memo

Phase 2 Design Update

Phase 2 Modifications Plan

Hydraulic Analysis (Revised Version)

Phase 2 Modifications Visual 

In addition, interested stakeholders and users can visit the Boise Whitewater Park Phase 2 FAQ web page to learn more about planned design modifications and what users can expect in the coming years. 

Phase 2 Modifications FAQ

Aerial Photograph of Phase 2 at Boise Whitewater Park
Aerial Photograph of Phase 2 at the Boise Whitewater Park

Community Open House

Thanks to everyone who attended the community open house on Monday, November 20th with the project team to update recreationists on the status of the project, outline the planned maintenance modifications at Phase 2 and answer any questions.

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For other after hours park related emergencies (i.e. irrigation issues, restrooms), please call (208) 489-6640.