News – Page 142 – GeoPrac.net

Robbins TBM or Tunnel Boring Machine being used in Zhengzhou, China for Line 1 of their Metro.

Robbins EPBs Undercut Downtown Zhengzhou

November 15, 2010 rockman Comments Off

The City of Zhengzhou is set to become a major rail crossroads for China, located at the intersections of China’s major North-South and East-West lines. Currently tunneling with tunnel boring machine (TBM) is taking place […]

Geotechnical contractor Hayward Baker installing some form of anchors or tiebacks to stabilize a failed retaining wall beneath a Walgreens in Dillon Colorado.

Dillon Colorado Road Repairs Ongoing After Retaining Wall Failure

November 15, 2010 rockman Comments Off

In May, a retaining wall that ran from Little Beaver Trail to a Walgreens store failed after a water main rupture, sending debris into the street, closing the road for several months. Specialty geotechnical contractor […]

Dennis Miller, former park manager on a dock on the west side of Duke Lake in Ryerson Station State Park. The dam seen in the background, was damaged resulting in the lake being drained in July 2005.

Coal Mining Company Ordered to pay $21M for Causing Crack in Pennsylvania Dam

November 10, 2010 rockman Comments Off

In July of 2005, cracks began forming in the concrete dam that created Duke Lake in Ryerson Station State Park in Pennsylvania that required officials to drain the 62-acre lake. The state’s Department of Environmental […]

Aerial view of the Lake Delhi Recreation Association Dam after it had been compromised. (Mark Benischek)

Iowa asks FEMA to reconsider Lake Delhi decision, repair estimate $6M

November 10, 2010 rockman Comments Off

Part of the dam collapsed in July during flooding by the Maquoketa River, draining a nine-mile lake. FEMA officials decided the dam wasn’t elligible for federal emergency funding because it is owned by a private […]

California’s Anderson Dam Has Seismic Stability Issues

November 3, 2010 rockman 1

‘The Santa Clara Valley Water District has received preliminary findings from an ongoing seismic stability evaluation for Anderson Dam that detail part of the dam could experience “significant slumping” if a 7.25 magnitude earthquake were […]

San Francisco-Oakland Bay Bridge Project

50 Notable US Transportation Projects

November 3, 2010 rockman Comments Off

This is the online version of an article that appeared n the September 2010 version of CE News Magazine. It has a nice set of tables summarizing various large transportation projects across the country, grouped […]

Sign and barricades at the road closed by the St. Jude Landslide in Quebec

St. Jude, Quebec Five Months After the Deadly Landslide

November 1, 2010 rockman Comments Off

It’s been over 5 months since the massive St. Jude landslide that claimed the lives of four residents. The quick clay landslide took place on May 10, 2010, and in this article, it is clear […]

Council to visit site of Logan, Utah canal landslide

November 1, 2010 rockman Comments Off

Various stakeholders are meeting at the site of the fatal landslide to discuss the various options for replacing or realigning the portion of the canal that failed. [Source: HJNews.com. Image: Landslides Under a Microscope Blog]

Geofoam EPS blocks at the campus of Versa-Tech for the Tucker Tunnel project in St. Louis

Backfilling the 1931 Tucker Tunnel in St. Louis with Geotechnical Fill, Geofoam Blocks

October 28, 2010 rockman Comments Off

Constructed in 1931 by the Illinois Terminal Railroad, the Tucker Tunnel is located underneath Terminal Boulevard in downtown St. Louis. Over the years, the tunnel condition has deteriorated and the concern is that the failure […]

Hoover Dam Bypass Bridge Dedication Ceremony

Hoover Dam Bypass Bridge Dedication Photos on Flickr

October 28, 2010 rockman Comments Off

The ACEC has some great shots from the dedication ceremony for the Hoover Dam Bypass Bridge, including all of the visiting dignitaries and politicians, the plaques and of course shots of the bridge and the […]