40 Projects

MWRA, Harvard University Science Complex, Pipeline Eval to Enable Construction on Site

Harvard University Science Complex, MWRA Sewer

Allston
,
MA

Harvard University planned to locate a new science complex above a Massachusetts Water Resources Authority (MWRA) brick masonry pipeline that was over 115 years old. The University was concerned...

Sonoma County Water Agency, Transmission System Pipeline

Sonoma County
,
CA
Project Contacts:

The Sonoma County Water Agency manages a regional water supply to ensure its customers have access to clean water. Wanting to preserve their assets, the agency needed to understand the condition...

Skewed Culvert

Skewed Culvert

Boston
,
MA
Project Contacts:

With limited guidance in existing design standards, the culvert manufacturer was struggling to efficiently design headwalls for their metal culverts skewed relative to the road. SGH implemented a...

Massachusetts Water Resource Authority, Beacon Street Line

Massachusetts Water Resource Authority, Beacon Street Line

Boston
,
MA
Project Contacts:

Constructed in the 1870s, the Beacon Street Line carries water under the MBTA Green Line tracks in the busy Brookline neighborhood. Massachusetts Water Resources Authority (MWRA) identified a leak...

DC Water North East Boundary Trunk Sewer

DC Water North East Boundary Trunk Sewer

Washington
,
DC
Project Contacts:

In 2014, a five-story residence was constructed directly over DC Water’s North East Boundary Trunk Sewer (NEBTS) with only about 2 ft of soil between the bottom of the basement and the top of the...

Indian Valley Reservoir

Newport Beach
,
CA
Project Contacts:

The Indian Valley Reservoir provides long-term irrigation storage and flood control. A 2010 inspection report recommended seismic analyses of the floodgates and control structure to confirm the...

ITC Crossing Mount Olive NJ

ITC Crossing

Mount Olive
,
NJ
Project Contacts:

During construction of the ITC Crossing development, sections of corrugated metal pipe (CMP) and reinforced concrete pipe (RCP) in the storm drainage system were found to be structurally...

Brandon Shores Power Plant

Curtis Bay
,
MD

Brandon Shores Power Plant (BSPP) has a proactive inspection and repair program for circulating water and service water pipelines, including prestressed concrete cylinder pipe (PCCP), steel pipe,...

Stroube Drain Oxnard

Stroube Drain

Oxnard
,
CA

After constructing the first 1.5 mi of the Stroube Drain cast-in-place, reinforced concrete box culvert, the owner discovered the design did not consider live loads for the most severe traffic...

Miami-Dade Water and Sewer Authority

Miami-Dade Water and Sewer Authority

Miami
,
FL
Project Contacts:

In 2010, Miami-Dade Water and Sewer Authority (MDWSA) instituted a continuous inspection and repair program for their 48 in. to 96 in. dia. prestressed concrete cylinder pipes (PCCP). With brief...

Pages