The Del Mar bluffs have been plagued by a series of collapses over the last 18 months that have left residents and officials increasingly concerned about the stability of the busy railroad tracks perched atop the cliffs.

Top transportation officials are now gearing up for the largest bluff stabilization effort in nearly a decade. The San Diego Assn. of Governments and North County Transit District have already dedicated roughly $10 million to repair storm water drainage structures, replace parts of sea walls and install additional steel and concrete support columns to hold back the earth.