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Ref. 10 · Brackish & Co.

Coast Guide — Harvest Rules for WA, OR & CA

A plain-language map of what you can legally take from the intertidal in Washington, Oregon and California — beach by beach, personal versus commercial, with the closed seasons and no-take reserves drawn in.

Public interestMappingRegulatory dataPWABrackish CommonsVisit the live site ↗
Coast Guide — Harvest Rules for WA, OR & CA cover illustration
Ref. 10 · cover · Brackish & Co.

Role

Designer · Full-stack build · Regulatory research

Year

2026

Stack & Surfaces

TanStack Start · Supabase · Leaflet map + state rule layers · Structured regulation data (WA / OR / CA) · Installable PWA

[Problem]

Intertidal harvest law is written for enforcement, not for the person standing on the beach with a bucket. Rules live in scattered PDFs and agency pages, split across three states, and they change by species, season, use type, and specific parcel — so most people either guess, or don't go at all.

[Approach]

  • 01Read the actual statutes and agency rules for Washington, Oregon, and California and turned them into structured, per-state records with limits, licenses, seasons, and citations kept next to the plain-language version.
  • 02Drew it on a map: open beaches, closed parks, and no-take reserves, filterable by state and by personal versus commercial use so you only see the rules that apply to you.
  • 03Wrote every rule twice — the plain sentence up top, the citation underneath — so the guide is usable at the tideline and defensible when someone asks where it came from.
  • 04Kept meeting points and private access details out of the public layer; the map only shows what's legal and public.
  • 05Shipped as an installable, offline-friendly PWA because most beaches have no signal.

[Outcome]

A free public reference at brackishco.org/seaweed/coast-guide covering the WA, OR, and CA coast — the same map the guided tours run on, so what people learn on the beach matches what they can look up at home.

[The finished build]

Coast Guide harvest rules and map screen

[The Tide Line]

Field notes from the tide.

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