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Geotechnical Tennessee

Upcoming Tunneling Projects – Tunnel

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 […]

World Tunnelling News

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 […]

California highway landslide leaves vehicles buried – video

Aerial footage shows work crews clearing mud and debris following flash floods that left nearly 200 vehicles stuck in up to 5ft (1.5 metres) of mud. The Leona Valley, about 20 miles north of Los Angeles, saw extensive downpours on Thursday, with 3.58 inches (9 cm) of rainfall during a 30 minute period. Elsewhere in southern California, several roads were washed out and there were reports of motorists having to be rescued from torrential flooding

 

Interstate 10 in California closed east of Coachella after bridge collapse

A 30-foot section of a bridge on the 10 Freeway in Desert Center east of Coachella co

A 30-foot section of a bridge on the 10 Freeway in Desert Center east of Coachella collapsed Sunday, closing Interstate 10 indefinitely.

The 10 Freeway was shut down from Desert Center to the Arizona state line as a result of the bridge collapse and heavy flooding, authorities said.
llapsed Sunday, closing Interstate 10 indefinitely.

Source: Interstate 10 closed east of Coachella after bridge collapse

Sinkhole increases to 40 feet in Tennessee

Construction crews were trying to fill a massive sinkhole that began at 3 feet by 5 feet at Austin Peay State University’s Governors Stadium in Tennessee.

Construction crews were trying to fill a massive sinkhole that began at 3 feet by 5 feet at Austin Peay State University’s Governors Stadium in Tennessee.

The hole was first discovered near the football field’s end zone, where it meets the track, during a renovation project to replace the main stadium building about a month ago.

The workers have since had to dig a larger hole, about 40 feet deep and 40 feet wide, to find stable bedrock.

“We’re not going to skip any steps,” Mike Jenkins, the superintendent for Nashville-based Bell & Associates Construction,

By |May 2nd, 2015|Geotechnical Tennessee, Sinkholes|Comments Off on Sinkhole increases to 40 feet in Tennessee