1. Project Location: Columbus, OH
2. Diameter of line, sewer pipe material (RCP, MCIP, brick, etc.), length of rehab portion: 15' Stone Arch Culvert, approx 247 LF
3. When was it constructed and how long has it been in service: Constructed in 1800's.
4. Rehab method used: Danby PLIIIE – 1” Modular panels were used to rehab this arch, a leveling ledge was poured to
support the panel on each side. Full annulus grouting with cementitious grout with minimum compressive strength of 6,000 psi.
5. Cleaning method used (if required) and who cleaned the line: High pressure (8,000 - 10,000 psi) water blasting performed by Danby installer, Midwest Mole
6. Method of flow bypass or diversion, if used: Internal HDPE by-pass pipes were installed in the bottom of the pipe.
7. Depth of pipe: Unknown.
8. Depth of ground water: Unknown.
9. Ventilation and odor control used: Forced air was supplied in the culvert.
10. Construction cost (total amount and cost per foot): $600,000
11. Month and year of start-up and end of construction: 6/2011 to 11/2011.
12. Problems encountered during construction: None.
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? Unknown.