What we know about the Conception’s escape routes

The diving boat Conception caught fire off the Santa Barbara coast Monday morning, leading to the deadliest maritime disaster in modern California history. As investigators try to find the cause, the ship’s design and escape routes are drawing scrutiny.

‘The best of its kind’

The 75-foot diving boat was custom made in 1981 by a shipbuilder in Long Beach and had ferried scuba divers touring the Channel Islands from its home port in Santa Barbara for decades. Its final voyage started last Saturday for a Labor Day cruise with 33 passengers and a crew of six aboard.

The boat had three levels — the lowest level with bunk beds and showers, a main deck with a covered galley toward the front, and a top deck where the ship was steered.

The lead investigator probing the disaster expressed concerns about the escape routes out of the Conception’s lowest deck. Here’s what we know.

Asleep below deck

Authorities believe all passengers and a single crew member were asleep in bunk beds on the ship’s bottom deck at the time of the fire. The beds were under the galley, a covered area at the center of the main deck with a kitchen, dining area and bathrooms.

Only two ways out

There were two ways in and out of the bunk room on the lower level of the ship — a spiral staircase near the front and an escape hatch above the rear bunks. Both led up to the same area: the covered galley. According to federal investigators, a crew member who attempted to rescue passengers found the galley area “engulfed in flames,” with no way in or out.

‘A compliant fire trap’