Neighborhood Design | Neighborhood Design Standards
recreation, wildlife viewing and educational opportunities; or to create more visual interest: a. The storm water runoff tract is dedicated or reserved as a part of a recreation space tract; b. To earn a 50 percent credit towards the on-site recreation space requirement, the detention pond shall be constructed to meet the following conditions: i. Side slopes shall not exceed 33 percent unless they are existing, natural, or covered with vegetation and meet the design criteria in the Surface Water Design Manual for side slopes. ii. A bypass system or an emergency overflow pathway shall be designed to handle flow exceeding the facility design and located so that it does not pass through active recreation areas or present a safety hazard. iii. The area surrounding the storm water pond above the live storage shall be landscaped in a manner to enhance passive recreational opportunities such as a trail or pathway around the pond perimeter. iv. The storm water pond shall be designed so that it does not require fencing per the fencing requirements in Chapter 5 of 2016 KCSWDM (page 5-6). v. Split-rail fencing (three feet minimum height) is required around the pond at the emergency overflow elevation of the pond or higher. Wire
mesh backing of the fence is encouraged, but not required.
c. To receive a 100 percent credit, the storm water pond must meet all the additional requirements in the criteria in subsection G.b. of this section, and provide three or more of the following amenities: i. Provide seating using walls, benches and/or tables and chairs that view the storm water system. ii. Create overlook or destination points with views of the storm water pond. iii. Provide vertical planes (using stairs, platforms, etc. that allow storm water to be interacted with and viewed from different levels. iv. Provide interpretive signage describing the storm water feature, or the landscape features (such as highlighting the pollinator benefits of plantings incorporated into the storm water tract). v. Stack horizontal and vertical planes to create features such as pools and waterfalls.
vi. Provide a fountain feature near the pond center.
vii. Provide at least one fitness station located near the pond accessible via a trail or pathway.
J. Recreation space—Fees in lieu of
If on-site recreation space is not provided, the applicant shall pay a fee-in-lieu of actual recreation space. The City’s acceptance of this payment is discretionary, and may be
24 | Title 21: Sammamish Development Code
Effective | January 1, 2022
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