Sanitary Sewer Condition Assessment and Rehabilitation

Experts in the Prioritization, Condition Classification, Structural Assessment and Rehabilitation of Brick and Pipe Sewers

D&B has a unique approach. It is the outcome of extensive research and practical experience obtained over the last two decades. It covers each aspect of managing your valuable assets from inspection through condition assessment, to a full rehabilitation program. This approach, coupled with D&B’s unrivaled knowledge of the advantages and limitations of the range of rehabilitation techniques, gives each client confidence that the solutions applied will be the most cost-effective for its particular sewer system.

D&B’s unique approach includes the following steps:

• Inspect sewers in order of criticality
• Grade sewers against an international recognized “risk of failure” ranking system
• Evaluate rehabilitation options
• Implement the most cost effective, life-cycle cost solution

The logical systematic approach benefits from the tools and procedures developed by D&B, and equally important, from years of applied experience that is essential to providing successful rehabilitation solutions. The result is an assurance that the substantial public assets represented by your sewers will last for generations.

D&B works directly with cities and municipalities to provide specialty services to upgrade all types of sewer systems. Special problems, such as those presented by aging brick sewers, are handled by a team of engineers with particular skills and experience in the assessment, rehabilitation and operation of these systems. D&B’s services include:

• Development of cost-effective sewer upgrading programs
• Specification and management of sewer condition surveys
• Processing and interpretation of condition survey data
• Upgrading of existing sewer records
• The development of a computerized sewer database
• Identification of critical sewers in a system
• Computer models simulating sewer flows
• Flow surveys to verify hydraulic models
• Specification and testing of sewer rehabilitation materials
• Design and management of CSOs
• Drainage area planning
• Surface water quality assessment

D&B has worked with over 300 clients to provide specialist and expert services to rank, assess, and upgrade all types of sewer systems in the United States, Canada, Europe, the Middle East, and Far East. The Sewerage Rehabilitation Manual and the Manual of Sewer Condition Classification, the backbone of the WRc method and D&B’s approach, have been adopted worldwide and are both available through the Water Environment Federation (WEF) book store.

For more information on D&B’s Wastewater Management Services, please contact Executive Vice President, Steven A. Fangmann, P.E., at (516) 364-9890 x 3005, or Senior Vice President, Joseph H. Marturano, at (516) 364-9890 x 3008.