March 29, 2012, 140 DeBartolo Hall, 3:30pm

Burying our Problems - Innovating Underground Solutionsto Vexing Societal Problems
Jon Davies
Vice President Hatch Mott MacDonald


Major tunnel infrastructure projects use every civil engineering discipline and are often a laboratory for collaborative
and innovative solutions to such problems as traffic congestion, urban flooding, and uncontrolled sewer outfalls into the
Great Lakes and major US rivers. This talk will present several case‐history overviews of recent tunnel projects and how
each was designed to solve one or more of these challenging issues. The role of each Civil Engineering discipline will be
highlighted during the talk as much as possible. Questions and interaction are warmly encouraged! Among the projects
to be highlighted:

* The SMART Tunnel (A Combined Storm Sewer Tunnel/Highway
Tunnel In Kuala Lumpur)

* The Alaska Way Viaduct Project in Seattle; a Highway Tunnel
to Replace an Earthquake‐susceptible Double‐Decker Highway
Bridge and
open up the Seattle Waterfront.

* The Atlanta CSO Project ‐ 9 Miles of 28‐Foot Diameter Tunnel
to Eliminate Combined Sewer Overflows in the City of Atlanta.

As a Vice President and Sub Division Manager for Hatch Mott
MacDonald, Jon Davies has broad engineering experience
covering the design and construction of a diverse range of
projects. He has worked in North and South America, Europe,
and Africa with the past ten years based exclusively in
Massachusetts. His areas of technical expertise include jacked
tunnels, hand mining, microtunneling and large diameter TBM
driven tunnels, site investigations, instrumentation / monitoring,
soil‐structure interaction modeling, design and construction of
sheet piled cofferdams, support of excavation and shafts. He is
an expert on the prediction and assessment of settlement effects
caused by tunneling and large underground excavations. Mr.
Davies has worked both as Lead Designer and Resident Engineer
for major underground construction.