Here are some local accommodations. There is a toll bridge from Washington to Cascade Locks that requires cash.
There are also options on Airbnb and VRBO within a close distance.
Hotel
Best Western Plus Columbia River Inn
735 Wa Na Pa St, Cascade Locks, OR 97014 541-374-8777
~7 minute walk
Hotel
Cascade Locks Motel
300 NW Forest Lane, Cascade Locks, OR 97014 541-374-8750