Inspection Services for Long Range Tunnels
By Hibbard InshoreOne issue that many hydroelectric facilities face at some point in their lifespan is the need to conduct a condition assessment on long tunnels. These tunnels are critical to the proper operation of each facility and can cause extreme issues should they encounter a failure or blockage situation.
Because it is often impractical to dewater the facility to inspect these tunnels, there are distinct challenges to completing a thorough inspection while minimizing outage times. These challenges can include distance between access points, large diameters, logistics difficulties with access, limited outage time, water depth, and/or inability to fully shut flow down for inspection.
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