I notice a lot of people have been reading this story on the gate failures at Hebgen Dam, the news of which was first brought to us on Sept. 1 by “Idahosal.” (Salle)
They thought they had the way to fix the broken headgates at the dam, but it failed.
The news now is grim. The bulkhead plan did not work. There was too much turbulence at the dam intake for them to place the steel plate and stem the flow. At the moment there does not seem to be a “plan B”. The flow is still at springtime level. They are losing more than 5 inches of reservoir water elevation every 24 hours and this will accelerate as the level drops due to the cone shape nature of the reservoir bed. There are two scenarios that are scaring us at the moment.
Latest. Sept. 16. Progress slow in Hebgen Dam repair. By Andy Malby, editor. The Belgrade News