Plans & Specifications
The contract documents typically include the contract agreement, general conditions, special conditions, project plans, specifications, geotechnical report, and CCTV records. The plans and specifications for pipe bursting projects should have all the required information for typical open cut water or wastewater pipeline projects plus the information listed in this section. The drawings should provide information about the existing site conditions and the required construction work. Description of site constraints (i.e., work hours, noise, etc.) and the procedures to review the CCTV data should be listed in the notes section in the drawings. The plans may also include information to show erosion and sediment control requirements, flow bypassing plans, and service connection and reinstatement details. Generally the plans should include:
- Limits of work; horizontal and vertical control references.
- Topography and survey points of existing structures.
- Boundaries, easements, and rights-of-way.
- Existing utilities, sizes, locations, and pipe materials.
- The verification requirements for existing utilities.
- Plan and profile of the design alignment.
- Restoration plans.
- Existing point repairs, encasement, sleeves, etc.
- Construction easement and the allowable work areas around the insertion and pulling pits.
- Details for lateral connections and connections to the rest of the network.
- Traffic control plans.
- Existing flow measurements for bypass pumping (Najafi 2007)