Del Mar forms utility undergrounding district for Tewa Del Mar City Hall May 25, 2021 5:12 AM PT Print Del Mar has formed a utility undergrounding district centered around Tewa Court, from around 420 10th St. to 1035 Klish Way, as the city commences a pilot project for its long-awaited utility undergrounding project. Utility undergrounding had been on hold due to the COVID-19 pandemic, but council members voted in March to proceed with a Tewa Court pilot project that will include about 1,000 feet of overhead wiring, according to city staff. They said the pilot project will provide data that can help them determine the costs of citywide undergrounding.