The FDR processes have an increased speed of construction and are more environmentally friendly than deep rehabilitation or reconstruction procedures.
FDR cuts down on greenhouse gasses by reducing and/or eleminating the use of new materials. Most or all existing on-site materials can be used in the FDR process.
By eliminating or reducing the use of new materials and by using on-site materials there is no need to dispose of any materials.
Factors that may Impact Cost
Size of project
Project Phasing: Multiple location projects vs. single location projects (5-mile job on 1 road vs 1-mile job in 5 different places)
Traffic maintenance (closed local traffic only vs. alternate traffic patterns through the project)
Urban work (manholes / catch basins, intersection control add to cost) vs rural work
Night work (costs more for labor but less traffic disruptions)
Bidding/Tender date vs Completion date, number of working days
Raw material pricing (stabilizing agent)
Competitive bids (number of contractors in Region)
Decrease Cost Without Affecting Quality
Perform preconstruction testing and evaluation (drainage, subgrade, structure, etc)
Incorporate FDR section into structural design
Provide mix design with bidding/tender
Provide cores to give contractor better assessment of existing material
Early bidding/tender closing (ideally Oct-Dec for the next year’s work)
Clear, constructable specifications and QC requirements
Fair assignment of risk
Inclusion of FDR in a yearly overall pavement management plan
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