Council reviews proposed 2026 Engineering Development Manual and code changes, asks about ADU stormwater charges
City engineers proposed code amendments to align municipal code with a 2026 Engineering Development Manual, including new permit types, a 3‑year stormwater look‑back, clarified undergrounding thresholds and revised driveway standards; council asked for clarification on ADU ERU assignment and driveway rules.
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City engineering staff presented proposed updates to the Mountlake Terrace Municipal Code and the city’s Engineering Development Manual (EDM) at the Feb. 2 council work session, describing technical changes staff say will modernize development standards and align code with the EDM.
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