John Hennessy III,
P.E.
The Academy of Medicine, Engineering and Science of Texas (TAMEST) convened a task force to prepare this report on the Texas shale development experience. This report covers the underlying science for six topic areas as it pertains to shale exploration and production activities: 1) geology and earthquake activity; 2) land resources; 3) air quality; 4) water quantity and quality; 5) transportation; and 6) economic and social impacts.
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A colossal 90-inch water transmission main was completely relocated to accommodate the rebuilding of the Jane Addams Memorial Tollway, while incredibly maintaining water service to 500,000 residents. The project team designed, tested, and constructed a unique thrust restraining system to absorb the massive forces generated by the risky hot tap procedure—where two pipes are connected without emptying pipe contents. The system safely absorbed the high pressure force when water was diverted into the bypass section. It allowed a critical water supply to be preserved, the construction schedule to be reduced by a year, and renovation of the Tollway to proceed.
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One of Chicago’s most noted traffic bottlenecks has been transformed into a smooth-flowing multi-tiered interchange that is also helping spur development of the nearby Chicago Manufacturing Campus. Each day, more than 38,000 vehicles, 50 freight trains and 41 passenger trains used the intersection, creating a crowded logjam. Further complicating the project was its close proximity to an automotive assembly plant, a railroad mixing yard, a residential area, and protected marsh area. The project realigned roadways and added six new bridges, including a 4.75-million-pound steel railroad truss bridge assembled in a nearby staging area then transported in just four hours to its permanent location.
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This report is intended to be a starting point for further discussion and outreach among the public, stakeholders, local businesses, and local agencies to evaluate the efficacy of a local bikeshare system, ensure that the system is planned correctly and that all concerns are addressed adequately. The South Coast Bike Share Initiative conducted this feasibility study process over the course of 2016, thanks to generous support by the Santa Barbara Bicycle Coalition, Santa Barbara City College, and the University of California – Santa Barbara.
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The Utah Department of Transportation (UDOT) will improve Redwood Road south of Pioneer Crossing in Saratoga Springs over the next two years. The improvements, which are scheduled to begin this summer, are designed to reduce congestion and extend the life of the roadway.
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Innovative upgrades helped double this waste water plant’s wet-weather processing capacity to 720 million gallons per day, while increasing sediment and grit removal to 92 percent and reducing odor. To reduce discharges into the East River, the project team utilized advanced 4D modeling technology to deliver four new treatment components— totaling $1.3 billion—and inspected the interiors of eight, 140-foot-high egg-shaped anaerobic digesters that sit atop the plant. They also implemented a biogas program that is expected to heat nearly 5,200 homes and reduce annual greenhouse gas emissions by more than 90,000 metric tons by the end of this year.
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Washington state offers great biking! Whether you like scenic or sensible—or a bit of both—when you bike the Evergreen State you can experience dramatic mountain vistas, serene lakes and islands, rolling hills, rushing rivers, friendly small towns and exciting big cities, beautiful trails and protected bike lanes, with transit and ferries to extend your range. Washington State Dept. of Transportation and local/regional government partners are working together to create a network of connections that let you choose healthy, active transportation. Whether you ride for utility, health, travel, or recreation, we invite you to pedal Washington.
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Combining advanced civil and structural engineering innovations, the project team designed an 11-million-gallon reservoir that will help a nearby water treatment plant quickly restore operations in the wake of a major earthquake. The massive above-ground, concrete reservoir includes a “tank within a tank” design, with an outer 3-million-gallon chlorine contact raceway for water treatment surrounding
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The Tallulah Falls Railway crossed Tallulah Falls Lake on a 585-foot bridge built in 1913 as the lake was filling. The deck-style plate girder bridge replaced an earlier wooden truss structure. When the railroad was abandoned in the early 1960s, the steel spans were removed and recycled. The concrete piers were left standing because they had no salvage value and demolition would have been costly.
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Progress on the Port Authority’s Bayonne Bridge “Raise the Roadway” project as of May 2017. Watch the iconic bridge gain a new roadway deck, 215 feet above mean high water – and watch as workers begin to remove the lower deck. The original roadway’s removal will allow navigational clearance for the new generation of larger, more efficient and environmentally beneficial container vessels.
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