In Case of Emergency
Meadow Lake Flow Modifications
Pacific Gas & Electric chose Syblon Reid to perform this remote access dam upgrade and modification project to meet FERC mandated flow release requirements from Meadow Lake down to the Mokelume River. Due to the lack of roads to the site, materials and personnel were flown in by helicopter or via boat. Later on as the water receeded, limited access was achieved by all terrain type vehicles through the lake bed.
To complete this project Syblon Reid performed the following elements of this project:
- Construction of upstream and downstream cofferdams with installation of a water bypass system.
- Dewatering of (2) each 30-inch low level outlet pipes.
- Removal of bonnet and internals of existing 30-inch gate valves for insertion of a new pipe liner.
- Excavation of upstream outlet entrance as required to fusion weld and insert (2) each high density polyethylene (HDPE) pipe liners into each existing 30-inch LLO pipes.
- Installation of a new 24-inch manually operated guard valve on the downstream end of each liner pipe.
- Attachment of a section of steel pipe between new gate valve and downstream cofferdam with support and anchoring of steel pipe as required based on alignment of pipe.
Project Photos
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