PERMFILE67905

• Permit No: C1982056
• IBM Index Class Name: Permit File
• Doc Date: 9/22/2006
• Section_Exhibit Name: Exhibit 08R Fish Creek Culvert Design, NW Mains Ventilations Shaft & Fish Creek Borehole Culverts
• Media Type: D
• Archive: No

ADDENDUM TO EXHIBIT 8R (TR06-56)
• FISH CREEK CULVERT DESIGN
In August 2006, four 24-inch flood relief culverts, approximately 25 feet long, were
installed beneath the 6MN access road to address the high-flow flooding that sometimes
occurs during heavy spring runoff. These culverts allow flood flows, above the level of
the natural drainage channel, to safely pass under the road. The relief culverts are located
along the road just south of the existing single 60-inch and two 24-inch culverts, as
\ shown on Map 24.
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TR06-56 07/27/06