Articles Tagged with ''Dam''

Ethiopia has begun generating electricity at its new 5,000-MW roller-compacted concrete gravity-type dam on the Nile River. The first 375 MW went to the national grid on Feb. 20. 

Hydropower sector participants usually at odds—industry firms, dam safety groups and environmental advocates—now are finding common ground in project funding and new legislation.

These 80-year-old structures are critical components of a system that ensures consistent navigability and access along the Mississippi River from Minnesota to the Gulf Coast.

The historic Derby Dam diverts water into the Truckee River that would otherwise flow into Pyramid Lake. However, that diversion led to the near extinction of the endangered native Lahontan cutthroat trout in the lake.

To remediate seismic safety issues and enhance flood-handling capacity at the concrete thin-arch dam, the $32-million project called for cutting a notch in the existing structure, placing a new ogee-shaped spillway and installing reinforced armor at the dam’s base.

The $11-million project to raise Hell Hole Dam in Foresthill, Calif., was never going to be easy. Built in 1966, the earth-and-rock embankment dam impounds two rivers to form Hell Hole Reservoir in a rugged, remote location. 

Work recently started on a $3.6-million overhaul and modernization of the Watershops Pond Dam in Springfield, Mass.

Projection for 1.3-GW Glen Canyon plant comes as total US hydropower output to fall 14% in 2021 due to western states' rain shortfall, says US Energy Dept.

Heavy rains leading to a rather new phenomenon, static liquefaction of sand embankments, only previously observed in tailings dams led to property damage and flooding in central Michigan.

Former Hill aide Camille Touton also worked at Dept. of Interior in the Obama administration.