One swimmer is missing in Yale Reservoir, the other in the Klickitat River.
Anji Dean walked out of her home in the Vancouver suburb between 9 p.m. and 10:30 p.m.
A bomb squad was called to remove the devices, which were homemade.
The reason for the outage that affected the Kenton, Arbor Lodge and St. Johns areas of North Portland is not known at this time.
The 35-year-old woman faces first-degree assault and four counts of reckless endangerment.
The facility was placed on lockdown Thursday after fighting among about 30 inmates erupted.
The teen’s 1993 Subaru went off the eastbound shoulder and rolled several times and ended on its top.
A mortar-style aerial firework landed on the back porch awning and ignited the fire.
Humpty Dumpty literally fell off the wall and smashed into pieces at the Enchanted Forest in Salem on Saturday.
After hours outside, authorities used tear gas and the man surrendered without incident.