Pit Facts

The Berkeley Pit in 1982. The water seen here is surface runoff flowing into the Leonard mine shaft to the right at the Pit bottom.

The Berkeley Pit in 1982. The water seen here is surface runoff flowing into the Leonard mine shaft to the right at the Pit bottom.

PitWatch Issue Volume 4, Number 2

Pit Facts Comparison

Compare Pit elevations to those of…
the Belmont Senior Center at 5,605 feet above sea level;
East Middle School at 5,517 feet;
the Butte Airport at 5,525 feet;
the County Courthouse at 5,755 feet.

Compare the depth of Pit water to the height of…
the Anaconda smelter stack at 585 feet;
Seattle’s Space Needle at 605 feet;
Timber Butte which rises 834 feet above the Municipal Golf Course.

Compare the volume of water in the Pit to…
5 ½ Silver Lakes;
83 Basin Creek Reservoirs;
78,000 Stodden Park pools.

Pit Facts At A Glance

Current Water Level: 5,175 feet above sea level
Average Rate of Rise: About 1 foot per month
Critical Water Level: 5,410 feet above sea level
Rim of Pit at Lowest Point: 5,509 feet above sea level
Number of years before water hits Critical Level: (approximate) 21 years
Depth of Water: 702 feet (plus about 200 feet of sediment at the bottom)
Volume of Water: About 30 billion gallons

Leave a Reply


*