For folks looking for a safer detour around Spokane St Bridge than the one has shared, I recommend this route created by Don at that uses signed bike routes for the Georgetown section:
ridewithgps.com/routes/34419471
#SEAbikes
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This is the official @seattledot recommended route for people detouring around the closed Spokane Street bridge by bike, as included in a blog post the department just put out. SDOT recommends taking the lane on 1st Ave S or using the sidewalk.
sdotblog.seattle.gov/2022/12/29/res
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