Reports are the ship lost propulsion and contacted MD Department of Transportation alerting them of that fact and that a collision was possible. I noticed people commenting in the videos that the boat appeared to lose power/lights shortly before the collision, not sure if it's related but sounding more likely I guess.
https://abcnews.go.com/US/live-updates/baltimore-key-bridge-collapse/?id=108500215
Two people rescued so far, one hospitalized in critical condition, other refused treatment.
May you find your book in this place.
Formerly known as xp1337.