July/August 2024 - 14

COVER
STORY
Composite Underpinning
System in Harsh Winter
Conditions
Drilling micropiles through existing footing
Nestled among the lovely 19th century Greek revival, Queen
Anne and Italianate architecture, Somerville High School sits
atop the Spring Hill in Somerville, Massachusetts. Originally
constructed in 1872, the high school has experienced several
major renovations and
additions throughout its
147-year history. Citing
inefficient heating and
cooling systems, inadequate
access, structural repairs to
its exterior, and that all
major building systems
were at the end of their
useful life, the Massachusetts
School Building
Authority approved a feasibility
study for construction
This is the first in a
two-part series.
Look for the second
installment in the
September/October
issue of Deep
Foundations.
and renovation and city residents voted overwhelmingly
to fund the estimated $256 million project, making it the
most expensive high school construction project in Massachusetts'
history.
Site History and Background
In 1895, the four-story brick B Wing opened its doors as the
Somerville English High School. Two classroom additions
straddling the central B Wing were constructed in 1914. The
high school went through a massive expansion project in
1929 when four, five-story brick wings (similar to the B Wing)
were added to the building. The termed A, C, D Wings and the
north addition increased the total gross square footage
approximately 194,000 sq ft (18,000 sq m) or threefold the area
of the original high school building. The final large addition of
the E and F Wings was completed in 1986. Except for a minor
addition in 2003, the structure has remained unchanged until
14 * DEEP FOUNDATIONS * JULY/AUG 2024
AUTHORS Alan Watka, P.E., BC.GE, Hub Foundation, and Paul Deterling, P.E., Keller North America

http://www.BC.GE

July/August 2024

Table of Contents for the Digital Edition of July/August 2024

TOC
July/August 2024 - Intro
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