Specifications include, but are not limited to: demolition of the existing Taxiway R bridge on between Taxiway RC and Runway 13L-31R, demolition of the existing Taxiway R at-grade concrete pavement and approximately 420-feet x 50-feet of the existing temporary asphalt Taxiway R, to include taxiway pavement removal and removal of edge lighting temporary asphalt, removal of the existing MSW beneath the pavement, mitigation or removal of methane gas encountered, and placement and compaction of clean backfill material. Construction elements include demolition of approximately 700-feet x 75-feet of the existing concrete portion of Taxiway R and the connector to Runway 13L-31R, removal of existing MSW material, placement of clean backfill material, grading and sodding. Demolition materials will be disposed offsite.