GENERAL SR 2025 26 Reconstruction of culvert near ch.2 800 at Pachakkil on Chevayur Malaparamba road General Civil Work

2.4.2.A:Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 metres Cement Concrete Grade M-15 & M-20 - By Mechanical Means

OD251358/2022-2023:Putting up ring bund with earth fill gunny bags of top width 1.00m bottom width 2.00 m side and filling in between with earth to form

3.13.1.B:Earth work in excavation of foundation of structures as per drawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom, backfilling the excavation earth to the extent required and utilising the remaining earth locally for road work. Ordinary soil - Mechanical Means - (Depth upto 3 m)

OD237467/2022-2023:Pumping or bailing out water and removing slush etc. using pump set including cost of labour, oil, hire charges of pump set etc. complete.

OD237450/2022-2023:Filling with granular material in the areas where the soil is of slushy in nature to achieve adequate bearing capacity and as a drainage layer laid in line and level compacted with plate vibrator etc complete as per Technical Specification and as directed by the Engineer in charge. (Derived from 13.9.A)

12.4:Plain cement concrete 1:3:6 nominal mix in foundation with crushed stone aggregate 40 mm nominal size mechanically mixed, placed in foundation and compacted by vibration including curing for 14 days.

12.40:Supply, Fitting and Placing un- coated HYSD bar Reinforcement in Foundation complete as per Drawing and Technical Specifications

12.8.1.C.1:Plain/Reinforced Cement Concrete in Open Foundation complete as per Drawing and Technical Specifications RCC Grade M20 - Using Concrete Mixer

4.1.B.1:Construction of granular sub-base by providing graded material, spreading in uniform layers with a motor grader on a prepared surface, mixing by mix in-place method with rotavator at OMC, and compacting with a vibratory roller to achieve the desired density, complete as per clause 401. Grading-V - For sub-base cum drainage layer - Mix in Place Method