The Metropolitan Sewer District is budgeting $200 million for the Ohio River Tunnel project to improve water quality in Louisville. LOUISVILLE, Ky. (WDRB) – The Metropolitan Sewer District is budgeting $200 million for the Ohio River Tunnel project to improve water quality in Louisville. According to Jacob Mathis, an MSD engineer and manager of this project, just a tenth-of-an-inch of rain can overwhelm parts of the sewer system in the district, sending stormwater and drainage straight into the Ohio River or Beargrass Creek. “In a typical year, there’d be four billion gallons of sewage released into these waterways,” Mathis said. In hopes to reduce sewer drainage across the country, the federal government is requiring communities to find ways to mitigate the damage by Dec. 31, 2020. If Louisville does not meet the deadline, the government could enforce fines or penalties. In response, MSD engineers devised a plan of three new basins in three different neighborhoods to store overflow. But there were concerns over how much that could interrupt construction, business and daily life. MSD decided to take a different route and came up with the Ohio River Tunnel project. “This project is one of the first of its kind in Louisville or even the state of Kentucky,” Mathis said. Engineers describe it as being on the same level and magnitude as the Ohio River bridges undertaking. But this project is intended to be out of sight, out of mind. “There will be less disruption to the community itself with traffic impacts, economic impacts,” Mathis said. “We won’t disturb the big economic corridor along Main Street.” The tunnel will start underneath what will be the western part of Waterfront Park near 13th and Rowan Streets. It’ll head east underneath the Ohio River towards I-64. At the Second Street Bridge, the tunnel then jogs inland to Butchertown. [...]
2/10/2016 Upcoming Tunneling Projects CALIFORNIA Laguna Beach Tunnel Stabilization and Sewer Pipeline Replacement Approved by the South Coast Water District Board of Directors in 2010 and the City of Laguna Beach in late 2013, the Tunnel Stabilization & Sewer Pipeline Replacement Project (Tunnel Project) is a 100-year solution to protect the environment, local economies and neighboring communities. The project comprises two key components: Tunnel Stabilization: The District will enlarge the size of the tunnel from an average of 6 to 9 ft. This will ensure safer working conditions and greater access for future pipeline maintenance and repair. Permanent shotcrete lining and steel supports will be installed at several locations where required, replacing rotten timber supports and removal of loose rock that currently exist. Pipeline Replacement: The District will install a new 24-in. pipeline throughout the tunnel. The current pipeline – also 24 in. in diameter – will be encased in concrete, but preserved for redundancy and emergency use. The cost to repair the tunnel is estimated at approximately $90 million and will be funded through low-interest state loans, grants and the District’s general fund. Shortlisted tunnel contractors announcement was anticipated for 2014-2015 with request for bids expected in 2015 and NTP in 2015-2016. Los Angeles The North East Interceptor Sewer (NEIS) Phase 2A The North East Interceptor Sewer (NEIS) Phase 2A project is currently the northern extension of the NEIS Phase 1 project. The project will construct approximately 3.03 miles of 8-ft diameter sewer in tunnel and associated structures. The sewer will be constructed from the Division St. Shaft site, near the intersection of San Fernando Road and Cazador Street and terminate at the northern overflow parking lot for the Pony and Train Rides in Griffith Park, just north of the I-5 Griffith Park On/Off Ramps (I-5 Shaft Site) east [...]
Jan 05, 2016 - Helsinki-Tallinn fixed link seems feasible Yle Uutiset Jan 04, 2016 - India awards large $1.5 billion road link contract India Times Jan 01, 2016 - Bangladesh to improve infrastructure BD News 24 Dec 30, 2015 - India's longest road link to open in July NDTV Dec 29, 2015 - India envisages first underwater link India Times - India Today Dec 29, 2015 - China opens longest lake crossing GB Times Dec 28, 2015 - Japanese court ruling on fatal ceiling collapse The Yomiuri Shimbun - Japan News Dec 28, 2015 - Shanghai completes 13th river link Shanghai Daily Dec 26, 2015 - Bids placed for Istanbul mega-project Daily Sabah Dec 25, 2015 - Complex Singapore road link delayed Straits Times Dec 25, 2015 - Ottawa LRT enters final phase Ottawa Sun Dec 22, 2015 - Rio Metro Line 4 needs more funding The Rio Times Dec 20, 2015 - Work starts on Auckland's City Rail Link Stuff.co.nz Dec 18, 2015 - Study looks at replacing old Baltimore rail link The Baltimore Sun Dec 14, 2015 - US transportation bill boosts Hudson rail project New York Times Dec 14, 2015 - Cost of Mumbai Metro Line 3 underestimated The Indian Express Dec 14, 2015 - Cologne LRT opens phase III Railway Gazette Dec 14, 2015 - Qatar progresses with rail infrastructure Doha News Dec 10, 2015 - Tunnelling to start on Shinkansen maglev line The Asahi Shimbun Dec 09, 2015 - Sweden opens its longest rail tunnel International Railway Journal Dec 04, 2015 - Barge launches Thames Tideway construction Tideway news release Dec 03, 2015 - Memorial ceremony for Sasago tunnel collapse Japan Today Dec 02, 2015 - TT2 recognised for work with the disabled Shield's Gazette Nov 30, 2015 - Group to lobby for Malta-Gozo fixed [...]
https://www.youtube.com/watch?v=0BmZumw2Odo https://www.youtube.com/watch?v=qfhrUYJHRjc https://www.youtube.com/watch?v=SXRv7aSNUtI Geotechnical Engineering The Geotechnical Engineering program within CEE at Illinois has educated generations of experts in the use of natural material such as soil and rock in combination with engineered material such as concrete, steel and geosynthetics, in the design of dams, tunnels, on-shore and off-shore reclamation for airports, landfills, deep excavations, and foundations for structures of all kinds. Alumni of CEE's Geotechnical Engineering program have made significant contributions to major projects like subway systems in the nation’s largest cities, the Hoover Dam and the World Trade Center. Today, geotechnical engineering faculty members have expertise in earthquake engineering, soil mechanics behavior, foundation engineering, rock mechanics and tunneling, and advanced numerical modeling techniques. Research interests of the Geotechnical Engineering faculty include: Deep excavations Earthquake engineering Numerical modeling Static and dynamic Soil-structure interaction. Engineering properties, construction problems, and ground modification technology in soft clays and silts, stiff clays and soft rocks, and granular materials Soil-structure interaction Reliability-based design Mechanically stabilized earth and earth support systems Ground improvement methods and their effect on structures Soil liquefaction during earthquakes The static and seismic stability of natural and excavated slopes Source: Geotechnical Engineering | Civil and Environmental Engineering at Illinois Geotechnical Engineering Illinois
Throughout the summer, six large barge-like vessels floated out of Baltimore's harbor. These weren't boats, they were giant concrete tubes, destined for a tunnel in Southern Virginia that will expand a busy subterranean highway that connects two parts of the state. This week, those tunnel segments will start to be installed under the Elizabeth River and engineering firm Skanska has released detailed information about how exactly they are burying those 16,000-ton tunnel segments below a muddy riverbed. The Elizabeth River Tunnels is a transportation project launched in 2011 to double the capacity of the existing Midtown Tunnel, which connects the cities of Norfolk and Portsmouth, Virginia by car. It's one of the largest infrastructure projects currently happening in the U.S. But it's also in an extremely sensitive ecological region—the Elizabeth is the same river that's part of a larger restoration program to clean and repair the watershed that I've written about before. The project needs to have as light a touch on the surrounding environment as possible. Since the tunnel segments were cast in Baltimore, the first step for the journey was to transport those segments almost 220 miles away. Obviously the 350-foot-long concrete tubes were far too heavy (and inefficient) to haul via truck, so engineers used the river's natural transportation power. The segments were closed off on one side so they could float like barges, heading out the Chesapeake Bay and back up the Elizabeth River, where a trench awaited the segments' arrival. The rest of the action goes on underwater, so Skanska created an infographic to illustrate the process. First, 40,000 tons of aggregate and sand are dropped into the trench, where they're graded down to a tolerance of one inch by a kind of sand-plow device suspended from above. Then, the actions used to make the [...]
SEATTLE -- Bertha, Seattle's tunnel-boring machine, is officially stuck. According to a spokesperson with the Washington Department of Transportation, the giant drill hit some kind of obstruction and can't move through it or past it. WSDOT says the trouble started Friday when Bertha's five-story tall cutter head felt some resistance, then stopped. WSDOT says engineers with Seattle Tunnel Partners, the company in charge of building the viaduct replacement tunnel, have been consulting with other experts to identify the obstruction - whether it's natural or manmade. They say Bertha wasn't damaged in any way. They're keeping her idle until they decide whether crews need to dig the obstruction out from above or if Bertha can charge through it. Bertha has dug 1,000 feet of tunnel since July. She's sitting 60-feet underground between South Jackson Street and South Main Street among a mix of native dirt and fill tossed into place from as early as the 1800s. She has just 450 more feet to travel before leaving that fill behind. It will also mark the end of phase one in the $4 billion tunnel project that will stretch 1.7 miles from adjacent to Safeco Field to Battery Street. WSDOT doesn't know how long Bertha will remain stuck, but they say it's too early to say whether the delay will affect the project's bottom line or it's scheduled opening in late 2015.