ABSTRACT
Part of the construction of the associated Taxiway E includes the construction of the embankment over a wetlands area in an alluvial floodplain. The wetland crossing is from STA 11 + 00 and STA 17 + 00, for an approximate distance of 183 m (600 ft). The final grades in this area require the construction of an earth embankment up to 18 m (60 ft) in height over the existing soft ground, adjacent to Brush Creek. The footprint of the taxiway alignment is restricted by a Corps of Engineers agreement and other water quality standards, including wildlife habitat requirements imposed by state agencies. The wetland water quality and flow could not be impacted by the crossing, requiring that the potential for slope failures be minimized. The flow of Brush Creek was diverted into a box culvert approximately 160 m (525 ft) in length.
