Salmon Protection & Watershed Network

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        "excerpt": " spawnusa.org — Rain gardens, stormwater, and salmon habitat spawn usa French drains Seawalls Rain gardens Foundation water Where to see salmon About Independent resource Rain that lands on your roof doesn’t have to leave your property. A rain garden is a shallow, planted depression that catches roof and driveway runoff and lets it soak into the ground instead of running to the storm drain. Done right, it handles a one-inch storm from an average roof and needs almost no maintenance after the second year. Photo: BrianAsh (English Wikipedia), CC BY-SA 4.0 , via Wikimedia Commons Rain garden guides Sizing, soil testing, plant selection, cost, and maintenance — the full build sequence. Runoff calculator Enter a catchment area and soil type. Get the runoff volume and the rain garden size that handles it. French drains Yard, foundation and basement — the same trench at three depths, and what each one costs. Seawalls and riprap Holding a shoreline in place: walls, bulkheads, rock revetment and living shorelines, with costs and the permit path. Cost guides Seawall cost Per linear foot by material, with a calculator. Seawall repair What fails, what each repair involves, and when to replace instead. Seawall repair cost Tiebacks, void filling, cap and panel work, priced by damage type. Seawall inspection What it covers, what it costs, and when you need one. Bulkhead cost Replacement price per foot for calm-water lots. Riprap cost Rock by the ton and by the foot of shoreline. French drain cost Yard, foundation and basement drainage, priced per foot. Why runoff is the whole problem An ordinary 1,500 sq ft roof sheds roughly 900 gallons in a single inch of rain. On undeveloped ground that water soaks in slowly and recharges the water table. On a roof and a driveway it arrives at the creek within minutes, carrying oil, brake dust, and lawn chemicals with it, and it arrives with enough force to scour the gravel beds that salmon spawn in. Slowing that water down at the parcel scale is the cheapest available fix. It is also the only one a homeowner can do alone. Start with the calculator. Almost every rain garden that fails was built the wrong size for its catchment. Size yours first , then dig. spawnusa.org — an independent resource on residential water management: infiltration, drainage, shoreline and foundation water. French drains · Seawalls · Rain gardens · Foundation water · About Archive: Programs · Creek walks · Habitat restoration · Where to see salmon · Get involved · Contact This site is not affiliated with, endorsed by, or connected to the Salmon Protection and Watershed Network or the Turtle Island Restoration Network. Cost figures are general reference only. spawnusa.org does not perform shoreline work and may be compensated when an enquiry is referred to a contractor. It does not solicit donations or accept contributions. ",
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