Remediation of Center Avenue Landslide

The remediation of the approximate 200-foot long landslide occurring on the low (south-bound lane) side of Center Avenue and encroaching into the south-bound lane of that roadway, entails stabilization and roadway restoration with an engineered repair system having a design-life of 75 years and following the local standard of care for engineering design of such systems. Preliminarily we anticipate the remedial system could include soil nails, rock anchors, shotcrete or high-strength mesh facing, micropiles, geosynthetically confined soil wall (GCS), soldier beam & lagging (SBL) walls. However, any properly engineered system meeting the minimum goals (or better) outlined in the contract documents may be approved at the discretion of Garvin Boward Beitko Engineering, Inc. and the Borough. As a minimum, the design/build contractor (DBC) must reconstruct the shoulder of Center Avenue to a minimum width of approximately 3 feet beyond the original edge of pavement that has been damaged by the landslide. The pavement in the south-bound lane, above the landside and planned landslide remediation shall be replaced as indicated on the contract documents. In addition, any additional pavement that is damaged due to the DBC's construction methodology shall be reconstructed as indicated. The Owner anticipates the stabilization will include a combination of soil nailing and potential micropile/GCS structure. However, other suggested remedial approaches (soldier beam & concrete lagging, etc.) will be considered, albeit with heightened critical review.

Division 31 -	Earthwork, Erosion and Sedimentation Controls.
Division 33 -	Utilities, Storm Drainage Utilities, Ponds and Reservoirs.
Division 35 -	Waterway and Marine Construction, Shoreline Protection, Waterway Construction and Equipment.