REVIEWED PLN RESUB2 BLD2023-1391+PATH EXEMPTION Letter+7.17.2024_4.43.56_PM+4385056� J
CITY OF EDMONDS
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121 5T" AVENUE NORTH • EDMONDS, WA 98020 • 425-771-0220 • FAX 425-672-5750
Website: www.edmondswa.gov
Parks, Recreation & Human Services
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July 12, 2024
To: Susan Mclaughlin, Director, Planning & Community Development
Tristan Sewell, Planner
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Reviewed by
City of Edmonds ;
1
Planning Division
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RE: Permit Application BLDG2023-1391, Mathay Ballinger Park Improvements
Pervious Trail Requirement Exemption
The City of Edmonds Parks, Recreation, & Human Services department (Parks Department) has a
permit application in review for park improvements at Mathay Ballinger Park in South Edmonds.
The requirement of a pervious trail surface ECDC 23.40.220(C)(7)(a) was noted as a requirement on
the May 28, 2024 memo from Tristan Sewell during the permit review process. The Parks
Department is requesting an exemption through the ECDC 23.40.230(A) Exemption Request and
Review process with director review, for several reasons.
Pathway design for a shared use path requires accommodation of pedestrians, bicyclists, skaters and
other users. This spur of the Interurban Trail is used for commuting, recreation, as well as an
established route to connect to the main Interurban Trail System. To accommodate the trail users, a
firm and uniform trail surface provides the safest means of travel on the pathway.
ECDC 23.40.230 requires this section of the otherwise paved trail within the critical area be a
pervious surface. We understand the intent of the code is to not have paved surfaces on steep slopes,
but this short length of trail is a 15% slope. The proposed trail surface is asphalt, providing a smooth
surface for pedestrian and wheeled users. The addition of 47 linear feet, or 470 square feet, of
pervious material to the pathway would represent less than 3% of the total length of the Interurban
Trail Spur. The terminus of this proposed trail intersects with the existing Interurban at both a sharp
angle and a drop in topography creates an approach from the east that is not visible until starting
down the decline. A trail user would not reasonably expect the change in material for this very short
trail section. In addition, the transition from asphalt to pervious back to asphalt creates, depending on
material used, seams, settling, and surfaces not friendly to wheeled users on a short and steep section
of the trail. The pervious section of the trail would counter our attempt to provide a continuous
surface and safe pathway for users.
Please see attached exhibit for reference.
Thank you for your consideration and please let me know if more information is needed.
Sincerely,
Angie Feser
Parks, Recreation & Human Services Director
Exemption Request - Pervious Surfacing
0
BLD2023-1391
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REFERENCE: SHEET C1.1, PRELIMINARY SITE PLAN, CG ENGINEERING, APRIL 10, 2024.
FIGURE 2, SITE AND EXPLORATION PLAN, LANDAU ASSOCIATES, SUMMARY OF GEOTECHNICAL ENGINEERING SERVICES, DECEMBER 27, 2023
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LEGEND
N
60 0 30 C
SCALE IN FEET
TP-1
APPROXIMATE LOCATION AND ID
OF TEST PIT (LANDAU, 2023)
SPIT-1
APPROXIMATE LOCATION AND ID
OF PILOT INFILTRATION TEST
(LANDAU, 2023)
EROSION HAZARD AREA PER
ECDC 23.80.020(A)
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LANDSLIDE/SEISMIC HAZARD
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AREA PER ECDC 23.80.020(B/C)
THIS FIGURE IS MEANT TO BE VIEWED IN COLOR.
GRAYSCALE REPRODUCTION MAY LEAD TO INCORRECT
INTERPRETATION.
AREA REQUIRED TO BE PERVIOUS
PER ECDC 23.40.220(C)(7)(a)