Aubrey Davis Park Trail Safety Improvements Project

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Mountains to Sound Trail looking east towards the tennis courts


In 2019, the Washington State Legislature approved an appropriation of $500,000 as a Department of Commerce Grant to fund safety improvements on the Mountains to Sound Regional Trail across Mercer Island. This appropriation anticipated the completion of the Aubrey Davis Park Master Plan. Mercer Island City Council adopted the Aubrey Davis Park Master Plan in December 2019. Along with that action, Council also directed the City Manager and Parks and Recreation Commission to develop a recommendation to expend the Department of Commerce grant in accordance with the master plan. This project has already drawn interest from a number of groups and individuals. The project will include public participation in the design process.


In 2019, the Washington State Legislature approved an appropriation of $500,000 as a Department of Commerce Grant to fund safety improvements on the Mountains to Sound Regional Trail across Mercer Island. This appropriation anticipated the completion of the Aubrey Davis Park Master Plan. Mercer Island City Council adopted the Aubrey Davis Park Master Plan in December 2019. Along with that action, Council also directed the City Manager and Parks and Recreation Commission to develop a recommendation to expend the Department of Commerce grant in accordance with the master plan. This project has already drawn interest from a number of groups and individuals. The project will include public participation in the design process.

  • Aubrey Davis Trail To Get Safety Upgrades

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    On March 2, 2021,the Mercer Island City Council approved the recommendations made by the Parks and Recreation Commission for a menu of improvements to the Mountains to Sound (I-90) Trail through Aubrey Davis Park. This paves the way for the City to get a $500,000 grant from the Washington State Department of Commerce to design and construct these improvements.

    The Parks and Recreation Commission's "Project Framework" involves working with a consultant and the Washington State Department of Transportation (WSDOT) to develop a set of "low-impact" improvements such as striping, street bypass routes, speed limits, signage, trail markings, and shoulder restoration on the portion of the trail that goes through the "Lid Park". The specifics of the improvements, their locations and designs are yet to be determined. The project is intended to improve the comfort and safety for the many people that use the trail and the park. This effort would adhere to the Aubrey Davis Park Master Plan which generally maintains the trail at its existing width in the project area.

    Once the grant agreement is signed, the City will hire a consultant who is qualified to design such multi-use trail improvements. The initial 30% design will be reviewed by the public, the Parks and Recreation Commission and City Council before design work continues.


Page last updated: 16 August 2021, 08:39