1. Executive Summary

The scope of this project encompasses the complete lifecycle of Etisalat civil works, including corridor preparation, trenching operations (width 400–600 mm), duct laying, warning tape installation, and final reinstatement. A critical focus is placed on manhole finishing, specifically benching, frame seating, and cable management. To ensure structural integrity, a mandatory 7-day curing period is required for all concrete elements. Excavation and finishing works must strictly adhere to a depth tolerance of ±25 mm, with a minimum cover of 600 mm maintained from the surface to the top of the uppermost duct.

2. Manhole Finishing Standards

Standard chambers are constructed with a typical clear opening of 600 × 600 mm. Finishing specifications require concrete benching to be sloped at a ratio of 1:6 towards the channel to prevent water stagnation. The mortar bedding beneath the frame must have a uniform thickness of approximately 20 mm. Where internal steps are required, they must be spaced at approximately equal intervals to allow safe and convenient access.