Public GPS Traces shows route from here to west then south.

Strava has trail from here north to where the stream meets Yankee Girl Circle

Strava heat map has a route from here northeast to Toe Jam & Country Club.

Strava heat map has a route from here south west to trail

From aerial imagery there are three structures here, each on piles. Maybe current navigational things, or ruins of things from Port Blakely Mill.

ridewithgps heat map shows the trail connecting with road a bit east of where it's mapped. survey.

ridewithgps heatmap shows riders a bit north of the mapped trail. survey.

Strava heat map shows a trail from here southeast to the retention pond.

County data shows this as Bay ROAD not Bay STREET. Although the public road end is called Bay STREET on the city's public road ends map and in their ArcGIS layer.

There's a separated cycleway here.