OHIO CITY DEVELOPS MANHOLE REHABILITATION PROGRAM

This article describes a manhole rehabilitation program instituted by Ohio city of Upper Arlington, after a visual inspection of 3,400 manholes showed that they were a major source of inflow/infiltration, which increased the chance of overloads during rainstorms. The Manhole Rehabilitation Program identified 712 manholes in the oldest parts of the system in need of most immediate attention. Spray-applied, fiver- reinforced cementitious liner was the chosen material. Another key decision was the flexible sealant used to seal between the cast-iron ring and the manhole wall. Crews received training in using the new materials, and they average four manholes per eight-hour work day, including power-washing, removing steps, repairing bench and invert if needed, and applying mortar to walls and bench. The average time is 12.67 labor hours and just under $750 including labor and materials. In addition, the preventive maintenance program consists of video inspections of 40,000 linear feet of line cleaning, 18 point repairs and other steps. To date, 160 manholes have been fixed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1606878
• Corporate Authors:

  Public Works Journal Corporation

  200 South Broad Street
  Ridgewood, NJ  United States  07451
• Publication Date: 2003-7

Language

• English

Media Info

• Features: Photos;
• Pagination: p. 45-46
• Serial:
  • Public Works
  • Volume: 134
  • Issue Number: 8
  • Publisher: Hanley Wood
  • ISSN: 0033-3840
  • Serial URL: http://www.pwmag.com

Subject/Index Terms

• TRT Terms: Linings; Manholes; Sanitary sewers
• Subject Areas: Maintenance and Preservation; Pipelines;

Filing Info

• Accession Number: 00961148
• Record Type: Publication
• Source Agency: UC Berkeley Transportation Library
• Files: BTRIS, TRIS
• Created Date: Aug 4 2003 12:00AM