San Jose Branch & Monterey Bay Branch Dinner
The San Jose and Monterey Bay ASCE branches invite you and your guests to our 2016 dinner meeting located in Santa Cruz. This meeting will feature a presentation entitled "Emergency Water Main Installation in Coastal Santa Cruz by Directional Drilling" by Justin Lianides (Mott MacDonald), Kevin Crossley (City of Santa Cruz Water Department), and Sala McGuire (The Covello Group, Inc.).
Presentation Topic Description:
The City of Santa Cruz Water Department (SCWD) is currently replacing 18,600 linear feet of water transmission main located along Highway 1 (CA SR 1) immediately northwest of Santa Cruz, California. The existing main was built in the 1950s and is part of the North Coast System (NCS), which consists of 16 miles of pipe network and stream diversion structures. While the primary method of replacement will be open trench methods, the project contains five trenchless pipe installations: four horizontal auger bores (HAB) and one horizontal directional drill (HDD).
With the intent to bid the entire project in a single contract, it was discovered in late 2015 that the existing water main had suffered premature failure in the location of the HDD – in land owned and operated by California State Parks – leaking at the rate of 500,000 gallons per day. In the drought ravaged State of California, it was imperative that the replacement of the pipe in the vicinity of the leak be completed in a short period of time. Correspondingly, the installation of a 1,300-foot-long HDD undercrossing at Lombard Gulch was bid and completed as an emergency project. The installation overcame significant challenges, which consisted of difficult geologic and topographic conditions and a sensitive creek ecosystem inhabited by the threatened California red-legged frog. The presentation will discuss lessons learned in context with the design, procurement, and construction required to reestablish the SCWD water main and discuss the project benefits of the remaining trenchless crossings.
Justin Lianides, P.E., is a tunnel engineer with Mott MacDonald in Pleasanton, CA. He has over nine years of design experience in the fields of rock and soil tunneling, and trenchless pipeline installations. He has worked on projects from Canada to Chile and is currently the project engineer for the NCS trenchless crossings. Another recent project is the design of the largest proposed SEM cavern to be constructed in Los Angeles. He obtained his BS from Cal Poly San Luis Obispo and an MS from the University of California, Berkeley.
Kevin Crossley, P.E. is a senior civil engineer with the City of Santa Cruz Water Department and is the project manager for the North Coast Phase 3 Project. He has worked for the City since 2012, and prior to that, was the staff civil engineer for the UC Santa Cruz Campus. He holds a B.S. in environmental engineering and M.S. in civil engineering from Cal Poly San Luis Obispo.
Sala McGuire is a project manager at The Covello Group Inc. and has 10 years of civil engineering experience with an emphasis in construction management. She has experience working on both small- and large- diameter pipelines, water resource facilities as well as commercial construction projects that have taken place in the San Francisco Bay Area, Boston and Honolulu. Sala is the Project Engineer for the City of Santa Cruz North Coast Rehabilitation Project.
Ideal Bar & Grill
106 Beach Street
Santa Cruz, CA 95060
PARKING NOTES:
There is no parking on the premises and this venue does not validate parking. Attendees are encouraged to arrive early for street parking (metered until 8:00pm) or to find a spot in a nearby parking lot.