Prettyboy Reservoir

Prettyboy Reservoir
Location Baltimore County, Maryland
Coordinates 39°38′36″N 76°44′27″W / 39.6432°N 76.7408°W / 39.6432; -76.7408Coordinates: 39°38′36″N 76°44′27″W / 39.6432°N 76.7408°W / 39.6432; -76.7408
Type reservoir
Primary inflows Gunpowder Falls
Primary outflows Lochraven
Basin countries United States
Surface area 206.5 km²
Average depth 29 ft [1]
Max. depth 128.6 ft [1]
Water volume 19,000,000,000 US gal (0.072 km3)

Prettyboy Reservoir occupies 206.5 sq/km of northern Baltimore County, Maryland, also known as the Hereford Zone. Even though the reservoir is located in the county, the City of Baltimore owns the reservoir and the surrounding land of forested watershed. The reservoir is one of three reservoirs created to supply the Metropolitan Baltimore municipal water system for Baltimore City, Baltimore County and northern Anne Arundel County constructed by the Baltimore City Department of Public Works. Prettyboy Reservoir, along with Loch Raven Reservoir that is downstream on the Gunpowder Falls, provide about 61% of the drinking water for the entire Baltimore Metropolitan system. For this reason, the Prettyboy is considered a “source water” or drinking water watershed. The reservoir on average contains about 19 billion US gallons (72,000,000 m3) of water.[2]

The water from Prettyboy Reservoir is transferred to Loch Raven Reservoir via Gunpowder Falls rather than directly to Baltimore. It is then transferred via tunnel from Loch Raven to the Montebello Filtration Plants in Baltimore for treatment and distribution. Prettyboy Dam, completed in 1932, impounds the Gunpowder Falls to create the Reservoir. The dam has a spillway crest elevation of 520 ft (160 m) of MSL and covers about 1,500 acres (6.1 km2).[2]

Prettyboy Reservoir Dam

Prettyboy Reservoir sits behind Prettyboy Dam on the Gunpowder River which flows into the northwestern Chesapeake Bay. The Gunpowder River also serves as a State Park and borderline between Baltimore County and Harford County. The reservoir serves as land for hiking, mountain biking, road cycling, fishing, and boating. Hunting is also permitted, though limited to archery only and requires a special permit.[3] Swimming is officially prohibited.[4][5] Sport bike riders and sports car enthusiasts also flock to the roads in the parklands that surround the reservoir.

Kayak and tubing enthusiasts float or paddle the Lower Gunpowder Falls from the dam down to Falls Road or Masemore Road. The river between those two points contains mainly Flatwater to class II rapids but one section contains a class III when the water level is normal or higher. Heavy spring rains mean that both gates at the dam may be opened to allow excess water through. Increased water levels make for excellent kayaking because of the narrow width of Gunpowder Falls' valley.

Special Department of Public Works and occasionally Baltimore City Police Officers are now patrolling all three of the metropolitan areas' watersheds.[6]

On June 23, 2008, Prettyboy Reservoir became the site of the first rescue performed by the Baltimore County Fire Department using a helicopter with rescuers dangling from a rope. The victim was a 30-year-old woman who had injured herself while walking her dog. The department had just been trained in the rescue two weeks prior to the incident.[7][8]

According to tradition, the lake was named after a settler's horse, Pretty Boy, who drowned near in a nearby creek.[9]

References

  1. 1 2 "Maryland Geographical Survey".
  2. 1 2 "Prettyboy Reservoir Watershed". Baltimore County, MD. Retrieved 8 May 2014.
  3. ↑ "Prettyboy Watershed Alliance". Prettyboy Watershed Alliance. Retrieved 8 May 2014.
  4. ↑ Erik Maza (June 24, 2011). "Illegal swimmers are testing the waters — and the rangers — of Baltimore's reservoirs". Retrieved 2012-04-22.
  5. ↑ http://www.baltimorecity.gov/Government/AgenciesDepartments/PublicWorks/PressReleases/tabid/285/articleType/ArticleView/articleId/454/Summer_Safety.aspx
  6. ↑ Jim Joyner (June 22, 2012). "Loch Raven, Prettyboy and Liberty reservoirs off limits to swimmers". Retrieved 2012-09-22.
  7. ↑ wjz.com - Helicopter Teams Have Success With First Rescue
  8. ↑ Topic Galleries - baltimoresun.com
  9. ↑ "SOME FACTS ABOUT THE PRETTYBOY...". Prettyboy Alliance Watershed. Retrieved 25 October 2016.
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