• Installation, maintenance, and removal of traffic protection devices associated with the vehicular detour proposed for this project; • Installation, maintenance and removal of soil erosion and sediment control devices as shown on the Plans; • Partial demolition of Bridge No. K0607 and replacement of the two span existing aluminum arches with a single span precast concrete arch founded on the existing footings with modifications and segment of precast concrete foundation. • Construction of precast concrete headwalls, cast-in-place pylons and steel 4-bar bridge railing. • Construction of precast concrete retaining walls and installation of slope stabilization measures. • Approach roadway reconstruction and installation of new beam guide rail with end terminals and bridge parapet connections
