Item 5 RESET EXISTING CURB (WITH CDF EMBEDMENT) – (INCLUDES CURB WORK REQ’D FOR HANDICAP RAMPS) Description Any existing curb that does not meet the proposed line or or other curb necessarily disturbed throughout the course of these operations, or existing curb used to construct handicap ramp systems, and/or any other existing modular curb designated by the Engineer, shall be reset to the existing line and grade and shall be subsequently embedded in Controlled Density Fill. Under this item the Contractor shall be responsible for moving existing curb to a new location on the site in order to best meet either the aesthetic and/or the closure needs of the project. This work shall be carried out at the direction of the Engineer. Method of Construction The curb to be reset shall be excavated down to the underside of the existing curb or lower if necessary. The existing curb shall then be set to true line and grade. Gravel shall be used to support the ‘bridging’ curb to achieve the initial & grade’ with Controlled Density Fill (CDF) being placed in and about the ‘line curb soon thereafter to form an unyielding base. However, no CDF shall be used in any curb trench which contains puddled water. (cc) Controlled Density Fill (CDF) be Type 1E (excavatable). If the Engineer so directs, the Contractor shall remove the existing curb from its existing location, prepare an adequate gravel base and reset the curb as described in paragraph (b) above. Any area that is inaccessible to mobile mechanical equipment or in restricted areas shall be compacted with pneumatic rammers or powered hand tampers. Compaction shall be carried on until the density of the material is not less than ninety-five (95) percent of the Standard Proctor Density, as determined by Standard laboratory Compaction Test. Transition and granite curb, either of the straight or curved type, which is installed to meet handicap ramp/curb cut compliances, shall be constructed according to the Architectural Barriers Board Specifications for such ramps as shown in the City of Newton General Construction Details. This work is to be performed to exact tolerances. Method of Measurement Measurements for payment shall be taken by the linear foot of the reset curb, inclusive of CDF embedment material for both straight and curved curb, handicap ramps, guttermouths, and/or corner blocks, complete-in-place. Basis of Payment CDF embedment material shall be paid as part of this item.
Item 5 – RESET EXISTING CURB (WITH CDF EMBEDMENT) (INCLUDES CURB WORK REQ’D FOR HANDICAP RAMPS) Description Any existing curb that does not meet the proposed line or or other curb necessarily disturbed throughout the course of these operations, or existing curb used to construct handicap ramp systems, and/or any other existing modular curb designated by the Engineer, shall be reset to the existing line and grade and shall be subsequently embedded in Controlled Density Fill. Under this item the Contractor shall be responsible for moving existing curb to a new location on the site in order to best meet either the aesthetic and/or the closure needs of the project. This work shall be carried out at the direction of the Engineer. Method of Construction The curb to be reset shall be excavated down to the underside of the existing curb or lower if necessary. The existing curb shall then be set to true line and grade. Gravel ‘bridging’ shall be used to support the curb to achieve the initial ‘line & grade’ with Controlled Density Fill (CDF) being placed in and about the curb soon thereafter to form an unyielding base. However, no CDF shall be used in any curb trench which contains puddled water. (cc) Controlled Density Fill (CDF) be Type 1E (excavatable). If the Engineer so directs, the Contractor shall remove the existing curb from its existing location, prepare an adequate gravel base and reset the curb as described in paragraph (b) above. Any area that is inaccessible to mobile mechanical equipment or in restricted areas shall be compacted with pneumatic rammers or powered hand tampers. Compaction shall be carried on until the density of the material is not less than ninety-five (95) percent of the Standard Proctor Density, as determined by Standard laboratory Compaction Test. Transition and granite curb, either of the straight or curved type, which is installed to meet handicap ramp/curb cut compliances, shall be constructed according to the Architectural Barriers Board Specifications for such ramps as shown in the City of Newton General Construction Details. This work is to be performed to exact tolerances. Method of Measurement Measurements for payment shall be taken by the linear foot of the reset curb, inclusive of CDF embedment material for both straight and curved curb, handicap ramps, guttermouths, and/or corner blocks, complete-in-place. Basis of Payment CDF embedment material shall be paid as part of this item.
curb-replacement.docx