20 research outputs found

    Life in the wake of a 200 year flood event at the Fording River Operations, June 1995

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    On June 6, 1995, a major flood event estimated to be greater than a Q200 flow, devastated the Elk Valley area of Southeastern British Columbia. Major highways, bridges and rail lines were impacted with damage estimates in the tens of millions. Fording Coal Limited sustained nearly 7 million dollars in damages to rail Unes, roads, bridges, settling ponds and other infrastructure. This paper summarizes the events leading up to the flood, describes the damages caused and remedial actions, and discusses what can be learned for the future.Non UBCUnreviewedOthe

    The Henretta dragline project : mitigating the environmental impacts

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    The economic recovery of over 5 million tons of high quality coking coal in the Henretta Creek Valley in South Eastern British Columbia posed significant challenges to Mine Planners, Engineers, Hydrologists, Biologists and Environmental Specialists. The challenge was to recover the coal reserves from not only the valley flanks, but from under the main valley floor, on which runs Henretta Creek, a fish-bearing stream. The approval process, which included several Provincial Ministries under the Mine Development Review Process and the Federal Environmental Assessment Review Process, is discussed. This case history also discusses in some detail the planning and construction of the Henretta Dragline Mining Project with emphasis on the water control structures and fisheries management works for the native Cutthroat Trout. A diversion of Henretta Creek through large diameter steel culverts nearly 1 km long, and a specialized crossing of the creek which allows fish passage were among the many innovative construction techniques. The mine reclamation plan and offsite mitigation works for both fish and big game wildlife species, are also explained.Non UBCUnreviewedOthe

    Fording River revisited : a review of environmental projects at Fording Coal Limited’s operations at Fording River over the last 25 years

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    Over the last 25 years Fording Coal Limited has completed a number of environmental projects at their Fording River Operations located in the southeast coal block approximately 30 km north of Elkford, BC. These projects involved major river diversions, and water quality control settling ponds, stream enhancement projects for cutthroat trout including the development of an entire side channel for fisheries mitigation, fish passage structures and wildlife habitat restoration. Some of these projects date back to the late 1970's and have been in operation for over 20 years. Many of these projects have been presented at previous Mine Reclamation Symposiums, starting with the first symposium in 1976. Some of the questions that are often asked are: what will that river diversion or stream enhancement project look like 20 years from now? will the river and/or side channel still be natural and productive? Will the vegetation disturbed by construction return to its former abundance? And how did these projects survive the major June 1995 flood that did considerable damage in the Elk River Valley and tributary watersheds? This paper and pictorial overview will compare the projects that exist now to those that were constructed and presented at the Mine Reclamation Symposium over 20 years ago. Projects and design concepts that have worked well will be discussed, and where improvements could be made, these will be highlighted. Many of the above questions will be answered.Non UBCUnreviewedOthe

    Reclamation problems at high elevations

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    Kaiser Resources Limited operates a 4 million ton per year surface coal mine in the southeastern corner of British Columbia. Since 1969, Kaiser's Environmental Services Department has been responsible for the rehabilitation of some 1400 acres of land disturbed by mining and exploration from valley bottom elevations of 3300 feet to steep mountain terrain at 6900 feet elevation. Some of the reclamation problems encountered, especially at elevations above 5000 feet, are very steep slopes, dark, highly erodible spoils and the availability of suitable revegetation species. The use of modified agricultural and forestry techniques has provided an encouraging degree of success in both establishment and maintenance of initial ground cover.Non UBCUnreviewedOthe

    Resloping coal mine spoils at the Fording River Operations

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    Fording Coal Limited operates the Fording River Operations coal mine located in southeastern British Columbia, Canada. The mine site, as shown in Figure 1, is within the medial range of the southern Canadian Rocky Mountains, approximately 136 km north of the United States - Canadian border, and 6 to 12 km west of the British Columbia - Alberta provincial border. The Fording River Operations produces an average of 4 million tons of cleaned coal per annum, primarily for export to Japan. Both thermal and metallurgical coal are produced at the minesite. Mining operations commenced in 1972 and are carried out on a continuous basis. The operations employ both truck/shovel and dragline mining techniques in multiple seam pits. Total material moved annually is approximately 42.6 million bank cubic metres (BCM) of waste and 6.0 million BCM of raw coal. This report summarizes the rationale and background with respect to resloping spoils at the minesite and describes the spoil resloping project carried out in 1984 in the South Greenhills spoil area.Non UBCUnreviewedOthe