1. Project Location: Canton, Illinois.
2. Diameter of line, sewer pipe material (RCP, MCIP, brick, etc.), length of rehab portion: 120” CMP (400’ – double barrel).
3. When was it constructed and how long has it been in service: Unknown
4. Rehab method used: Danby Panel Lok IIIE (spirally wound) with full annulus grouting with cementitious grout with minimum compressive strength of 6000 psi.
5. Cleaning method used (if required) and who cleaned the line: High pressure (3,000 - 10,000 psi) water blasting performed by the Danby contractor (L. J. Keefe Inc./Chicago).
6. Method of flow bypass or diversion, if used: Flows 100% diverted during work day to second barrel while lining was underway in first barrel.
7. Depth of pipe: 35 feet.
8. Depth of ground water: 10 feet.
9. Ventilation and odor control used: Not required (good natural ventilation).
10. Construction cost (total amount and cost per foot): $500,000 / $1250/ft.
11. Month and year of start-up and end of construction: May 2001 – November 2001.
12. Problems encountered during construction: Some problems with QC of grout supplier resulting in variations in grout mix properties. Better vendor QC solved problem.
13. Problems encountered after construction: None.
14. Health and safety: Used conventional confined space entry program.
15. Has any re-inspection been performed? What was the condition of the pipe? Yes, in Jan 2009; report states that “Overall, the system has performed well” but some minor cracking and gouges due to large debris impact.
Mr. Nicholas Volk
Illinois Dept. of Transportation
IDOT Contract #88750