Check out this dramatic photo of an excavator that toppled down a hill in Wellsley, MA adjacent to a commuter rail line. According the WickedLocal.com article, the operator was working at a construction site on a hillside where several retaining walls were being constructed. Photo by Jim Walker of Wicked Local.
This is a different perspective on landslides than what I usually blog about on GeoPrac. This banking and insurance website blog post discusses what should and shouldn’t be covered on a car owner’s insurance policy. […]
On September 17, CALTRANS and Kiewit Pacific held a "tunnel excavation celebration" to kick off the start of tunnel construction on The Devil’s Slide Tunnels project on California State Route 1 (the Pacific Coast Highway) in San Mateo County between the town of Montara to the south and the city of Pacifica to the north. The project involves the creation of a separated two-lane road, one lane in each direction. This road will pass through twin tunnels, over twin bridges and connect with an existing non-separated two-lane road at each end. The new road will be approximately 6,500 feet long, made up of the roughly 4,000-foot twin tunnels, the 1,500-foot north approach road (which includes the 1000-foot parallel bridges), and the 1,000-foot south approach road. Upon completion, the new road will bypass geologically unstable portions of existing Route 1, sections of roadway subject to lengthy closures, high maintenance costs over the years, and risk of permanent failure. Thanks Geology.com for the heads up. [Read on for more background, photos, maps, and movies!] (Images by CALTRANS)
Redi-Rock has released a free software product for the analysis of gravity retaining walls. Source: Redi-Rock Wall Freeware – Retaining Wall Analysis Software for Gravity Walls Related