HomeMy WebLinkAbout06.a.3)-(Handout)G.a .3) (Nando.0)
Agenda Item 6.a.3)
Board Meeting of September 16, 2010
Additional Written Announcements
Staff Out of State Travel /Conference Attendance
f) Out -of -State Travel for Right of Way Training
On October 7, 2010, Provisional Principal Engineer Stephanie Gronlund will be
attending the International Right of Way Association's Course in Las Vegas,
Nevada on reviewing appraisals in eminent domain. The course will cover the
importance and purpose of reviews in the eminent domain process, the types of
reviews used in the marketplace, and the common mistakes found in reviews and
appraisals. Attending the class is timely since staff is considering recommending
eminent domain proceedings to acquire necessary land rights for a planned
sewer renovation project.
This class is not offered this year in California. The course tuition ($265.00) and
travel expenses (approximately $600.00) are budgeted in the Environmental
Services Division Technical Training and Conferences budget for fiscal year
2010 -11.
General
g) San Bruno Gas Pipeline Investigation Update
Preliminary investigations of the San Bruno gas pipeline explosion are looking
into the role that pipe bursting of a sewer located under the gas main may have
played. In 2008, a sewer that crossed the gas pipeline in question at the
intersection of Earl and Glenview was replaced /upsized (6 -inch upsized to 10-
inch) using pipe bursting. It is suspected that the technique may have caused
ground shaking and disruption of adjacent soil and rock that may have damaged
the gas line.
The District utilizes pipe bursting extensively to replace /upsize sewers in its
service area. It is the District's practice to pothole utility lines that cross in close
proximity to the sewer line to be pipe burst to verify clearances. If clearance is
an issue, the contractor performing the work is required to expose the utility
crossing prior to pipe bursting thus eliminating any shaking /disruption of the soil
adjacent to the utility. In light of the San Bruno incident, District staff is
evaluating if additional precautions should be taken when pipe bursting sewers in
the vicinity of other utilities.