Fall River, MA
Brightman Street Bridge
Scope/Solutions
During the six-year rehabilitation of the Brightman Street Bridge, SGH provided investigation and concrete design services and performed testing, analysis, and thermal modeling of mass concrete placements.
SGH helped evaluate the following:
- Issues with tremie placement for an underwater cofferdam seal that compromised concrete quality
- Contractor concerns about a concrete mix for approach span pier pile caps and bascule span fender beams
- Plugged concrete pumplines during placement of the east bascule pier pile cap in cold weather
- Mass concrete placements
Over the course of these projects, SGH completed the following:
- Investigated tremie failure and blocked pumplines
- Determined the cause of the failed mass concrete placement in the cofferdam seal
- Performed petrographic analysis, adiabatic heat signature testing, and thermal simulations at varying placement temperatures, weather conditions, and curing periods
- Modeled heat generation during curing
- Retrieved and tested concrete core samples
- Designed and tested physical properties of a replacement tremie concrete mix and monitored a trial placement
- Proposed concrete aggregate and mixes to suit each project
- Specified tremie and mass concrete sequencing and placement methodology
- Recommended ways to avoid freezing pumplines, including increasing the concrete temperature, insulating pumplines, and filling the pumplines with hot water prior to pumping the concrete
- Monitored concrete placements for the 2002 and 2004 projects
1 of 5
Project Summary
2009
Completion Date
Solutions
Repair & Rehabilitation
Services
Structures | Advanced Analysis | Applied Science & Research
Markets
Infrastructure & Transportation
Client(s)
Modern Continental Construction
Specialized Capabilities
Temporary Construction | Marine & Civil Works | Computational Mechanics | Physical Testing | Materials Science | Microscopy
Key team members
Additional Projects
Northeast
First Street Bridge
The First Street Bridge is a bascule drawbridge carrying traffic westbound over Broad Canal. The bridge suffered from several forms of deterioration including damage to the concrete counterweight. SGH prepared remedial designs and developed construction documents for rehabilitation of the bridge.
Northeast
LaGuardia Airport, Terminal B
As part of a major modernization project, LaGuardia Airport is constructing a new Terminal B to replace the existing Central Terminal Building. SGH consulted on flood requirements and the fire life safety design for the project.