Hayward Baker has been working 18-hour days for Colorado DOT to repair a sinkhole on US 24 caused by an abandoned railroad tunnel. The link below takes you to a photo gallery on Hayward Baker’s Facebook page where there is a comment noting that there is more information on the project in the July 30 issue of ENR. [Source: Hayward Baker Facebook Page. Image: Hayward Baker Facebook]
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Troubled Eastern NC Riverfront Convention Center Gets Lifeline from Hayward Baker and TerraThane™ Geotech Foam by NCFI Polyurethanes
MOUNT AIRY, NC—The 12-year-old riverfront Convention Center in New Bern, NC was in trouble. The building’s exterior is supported by pilings driven deep in the ground, but the floors sit directly on the earth and silt of the old riverbed. The land was in-filled by old docks and building debris in the 1970s and settling, erosion, and construction mistakes were taking their toll on the building.
Parts of the floor and patio sunk up to seven inches, cracks and uneven joints in the concrete slab floors were causing walking/tripping hazards, and gaps beneath walls were allowing sound to pass between what were designed as soundproof rooms.
[Editor] Click through for the rest of the press release from NCFI. Disclosure: Hayward Baker is a sponsor of GeoPrac.net. [/Editor]
City of Vancouver sues over failed shoring
The City of Vancouver is suing a developer, excavation contractor and their consulting engineer for the costs of repairs, overtime for city employees and lost revenue from parking meters etc stemming from an apparent failure of a shoring system that formed a 30-meter sinkhole. No mention of the developer’s name or the engineer, but the contractor was Matcon Excavation and Shoring. The site will be the future home of high-rise condominiums…if the City lifts it’s stop work order.
The failure of the shoring caused a break inf a 20-cm water main ultimately flooding the site. It also necessitated the closure of the adjacent street. Of course this invites the whole chicken or the egg scenario. The defendants will probably argue that the water line failed first causing the failure of the shoring, but of course the City Engineer, Tom Timm was not shy about fingering the shoring as being deficient.
"It’s some kind of a failure of the shoring system . . . either a design issue or the way it was put in place."