Ask Ravenna Blog: What’s in a bioswale?

Inspired by a reoccurring column that our neighborblog, Roosiehood, writes, I am introducing the “Ask Ravenna Blog” post.

The premise of these posts is this: You, dear neighbor, send me a question, and I’ll do my best to find the answer.

Today’s question comes from southern Ravenna resident, Pamela, via twitter. She lives quite close to the Seattle Department of Transportation’s construction zone at the Scramble (NE 55th St/Ravenna/22nd Ave NE) and was wondering…

…what’s going to go in in the “bioswales” and who’s going to maintain it.

I emailed Construction Communications Officer, Bob Derry, who forwarded Pamela’s query to Jessica Murphy, the manager of the 15th Avenue NE Reconstruction Project (which the Scramble project is a part of). Here’s what she had to say:

The bioretention facilities will be maintained by Seattle Public Utilities as they are a stormwater infrastructure. The plants being used are as follows:

Kelsey Dogwood (cornus stolonifera)
Wetland Sedge (carex obnupta)
Baltic Rush (Juncus balticus)
Daylilies (hemerocallis)
Catmint (nepeta mussilinii)
Geraniums (geranium macrorrhizum)
Sword ferns

There are also going to be some new trees – Hogan cedars, black maples and tupelos all maintained by SDOT Urban Forestry.

There you are, Pamela (and anyone else who was wondering about bioswale contents and maintenance).

Have a question? Ask Ravenna Blog! Email me at rebecca@ravennablog.com.

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Ask Ravenna Blog BONUS: The SDOT’s Urban Forestry program’s website has a lot of great information for residents, including street tree planting procedures, a tree pruning guide, traffic circle volunteer information, and much more.

Also, if you have any comments, concerns or accolades for the Scramble construction crew, Construction Communications Officer, Bob Derry, can pass them along for you. You can find his contact information near the bottom of the 15th Avenue NE Reconstruction Project website.