How the Dam Works

How the Dam Works (HM1F6D)

Location: Minneapolis, MN 55444 Hennepin County
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Country: United States of America
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N 45° 8.533', W 93° 18.793'

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The original dam was built in 1913 and had 28 steel gates. The gates moved up and down to allow different amounts of water to flow under them. The current dam was completed in 1997 and is fitted with five crest gates. These gates maintain levels by allowing different amounts of water to flow over them. Four of the new gates are made of rubber and can be inflated with air. The gate on the west end of the dam is a steel crest gate.

The steel gate on the west side is automatically controlled to keep the upper pool at a prescribed level. It is fully adjustable with many positions from completely open to completely closed.

In summer, water levels are kept near 830 feet above sea level.

Three Rivers Park District
Mississippi National River and Recreation Area
National Park Service
Department of the Interior
HM NumberHM1F6D
Placed ByThree Rivers Park District; Mississippi National River and Recreation Area, National Park Service, Department of the Interior
Marker ConditionNo reports yet
Date Added Saturday, September 6th, 2014 at 12:59am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)15T E 475374 N 4998796
Decimal Degrees45.14221667, -93.31321667
Degrees and Decimal MinutesN 45° 8.533', W 93° 18.793'
Degrees, Minutes and Seconds45° 8' 31.98" N, 93° 18' 47.58" W
Driving DirectionsGoogle Maps
Area Code(s)763, 612
Closest Postal AddressAt or near 10400 W River Rd, Minneapolis MN 55444, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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