The 22nd District Agricultural Association Board of Directors, which runs the Del Mar Fairgrounds, has officially opposed any route that goes under the fairgrounds. Construction there would halt activities such as the San Diego County Fair, thoroughbred horse racing and other revenue-producing activities for nearly a decade, the fair board said.

SANDAG says the routes could be further refined during the environmental impact review process, which is expected to start this spring.

The effort to determine a new rail route through Del Mar, Calif., will repeat a step — and has a new twist, as well. At a Friday, Feb. 28, meeting, the San Diego Association of Governments restarted the run-up to developing an environmental assessment of the project,

The city of Del Mar submitted a letter to t Association of Governments ahead of the regional planning agency’s Feb. 28 meeting on rail realignment options. The letter, approved by the