The Coast Pilot is a free (in digital form; $25 or so in print), available from NOAA, and probably one of the best navigation and piloting resources that a sailor can have.
There are several Coast Pilot volumes out there, covering any US waterway up and down the east and west coasts. Also included are US overseas territories such as America Somoa.
You'll get accurate and detailed information about the area that's covered. Specifically, for every navigable body of water and harbor, you'll get:
- General description
- Bridges and cables
- Caution regarding aids to navigation
- Local weather
If you don't want to carry the full printed version, at the minimum keep the digital PDF version your laptop, and use the Coast Pilot to research your routes and destinations.