It depends which NCIS you are referring to. CBS broadcasts NCIS, NCIS: Los Angeles, and NCIS: New Orleans. NCIS is aired on Tuesdays 8/7c. NCIS: Los Angeles is aired on Mondays 10/9 c. NCIS: New Orleans is aired on Tuesdays 9/8c.
Whereas groins are built to change the effects of beach erosion, jetties are built so that a channel to the ocean will stay open for navigation purposes. They are also built to prevent rivermouths and streams from meandering naturally.
Rock Seawalls and Underwater Beaches. We are installers of quality built natural rock seawalls, fieldstone, glacial stone and rip rap. We use geotextile fabric that is on a 12ft wide and 400ft long roll to create one big blanket of shoreline protection under the rocks. The fabric also prevents weed growth.