NorthWestern Energy is continuing work on a project to upgrade the spillway of the Black Eagle Dam on the Missouri River.

and a siphon will be installed through the existing spillway to regulate the upstream normal pool elevation. The redeveloped Lake Matoaka Dam will achieve regulatory compliance with current Virginia ...

And, generally, he said the multimillion dollar concrete auxiliary spillway — which resulted from the North Fork Dam Improvement Project, operational in 2021 — was designed and built to do ...

During an oversight visit, MPs uncovered weaknesses in the dam’s main spillway and embankments, raising fears over its long-term stability. The briefing brought together key stakeholders ...