Situation
Riverbend is a regional facility that provides professional and safe disposal and convenient recycling services for Yamhill County and neighboring communities. Waste Management awarded the contract to GBI to improve the recycling area.
Solution
GBI built a new front entrance to the recycling area. This included construction of a 2,400 linear foot MSE berm, averaging 40’ tall to provide additional trash space to the existing landfill. 100,000 cubic yards of sub-excavation was removed, replacing it with 95,000 cubic yards of reinforced foundation fill, 84,000 cubic yards of reinforced fill and 73,000 cubic yards of clay embankment to construct the berm.
Within the front entrance, 650 linear feet of storm piping was installed as well as a new scale house, AC paving, electrical lighting, communications, and utilities.
Handling of leachate was a critical activity. GBI disposed of 3,250 linear feet of relocated HDPE leachate drainpipe and 2,890 linear feet of HDPE landfill gas collection pipe. Due to contaminants and permit requirements, close interaction with DEQ was required to accomplish the work.
Notable
The landfill is located adjacent to wetlands and the South Yamhill River, resulting in additional public scrutiny and DEQ monitoring. In addition to controlling hazardous environmental material, GBI ensured that erosion requirements were not only met but also exceeded during construction.
