Androscoggin River

In Errol, NH.

Course of the Androscoggin River

Channel to a hydroelectric power plant in Gorham, New Hampshire

The Androscoggin River is a river in the United States and is located in the northern New England states of New Hampshire and Maine.

It has a length of 287 miles and drains a catchment area of 8936 km ². It flows into sea level in the Kennebec River before it flows into the Merrymeeting Bay of the Gulf of Maine in the Atlantic Ocean.

Course

The Androscoggin River has its origin in the state of New Hampshire Errol in Coos County at the point where the Magalloway River meets the natural drainage of the Umbagog Lakes. The river then takes a southern course, but flows around bends, in many cities Errol, Milan and Berlin.

He then turns to near Gorham east and cuts through the northern end of the White Mountains. Then, leaving the river the County and New Hampshire.

He puts his running away to the east and flows past Bethel, Rumford and Dixfield before he swings at Livermore Falls to the south and the mountains leaves behind. It flows between the twin cities of Lewiston and Auburn through before it passed in a southeasterly direction Lisbon Falls. He then reached the city of Brunswick, from there its water level is already influenced by the tides. Merrymeeting Bay is an existing freshwater approximately 16 km long estuary in which Androscoggin River and Kennebec River meet, removed about 30 km from the open Atlantic Ocean.

In Maine, it flows through the counties of Oxford, Androscoggin - which is named after the river - and Sagadahoc. Here it flows into the Kennebec River.

Hydrology

The United States Geological Survey maintains the Androscoggin River four levels, all of which are directly below one or more dams.

The first, topmost on the river level is located in Errol, New Hampshire. ( ⊙ 44.7825-71.129444444444 ). The catchment area up to this point covers 2708 km ². The runoff here ranged from a maximum value of 467 m³ / s to a minimum of 0 m³ / s, if the dam completely shuts off. The average annual runoff amount was here 1905-2005 54.3 m³ / s

The second measuring point is located near Gorham, New Hamspire ( ⊙ 44.436111111111-71.190833333333 ) and refers to a catchment area of ​​3523 km ². The extreme values ​​here range from the maximum value of 620 m³ / s to the lowest flow rate of 22.5 m³ / s, if the dam completely shuts off. The average pile at this level is average for the year 1905-2005 71 m³ / s

The third level measures data in Rumford, Maine. ( ⊙ 44.551111111111-70.543888888889 ) These are based on a catchment area of ​​5354 km ². Here the historical flow reaches a maximum value of 2094 m³ / s and a minimum value of 18 m³ / s The long-term average annual mean is 108 m³ / s

The fourth and final station in Auburn, Maine ( 44.072222222222-70.208611111111 ⊙ ) corresponds to a catchment area of ​​8448 km ². The maximum runoff was here on 31 March 1998 3820 m³ / s, the lowest was 9.6 m³ / s The long-term average is 175 m³ / s

The river has a gradient of eight feet per mile ( 1.5 m / km) and thus is suitable for water resource use for adjacent industries. It is therefore used in Lewiston and Auburn for the generation of hydroelectric power.

Water quality

The waters of the Androscoggin River was quite heavily polluted years ago. This contamination was caused by the various textile mill, paper mills and other industrial plants along its banks and was associated with a trigger for the Clean Water Act. The river has benefited from the environmental protection and the disappearance of certain industries from the region; Nevertheless, there are still problems with unexplained industrial waste waters and exposure to mercury. On a 22 km long river section of the river, the artificial ventilation with oxygen is necessary so that the fish stock is not stifled. Environmental groups have brought a lawsuit to force the paper mills on the river, to clarify their wastewater.

Fishing on the river

The Androscoggin River is a popular destination for anglers. These are mainly interested in the catching of fish species such as brook trout, rainbow trout and brook trout, as well as Atlantic salmon and smallmouth bass. The headwaters of the river near Errol, New Hampshire is particularly sought for fly fishing from a drifting boat. The water temperature rises in the river course and the Hauptfischart on the lower reaches are black bass.

Name Variants

In the USGS GNIS a number of name variations are listed. Among them are:

• Amasagu'nteg
• Amascongan
• Ambrose Coggin
• Ammeriscoggin
• Ammoscoggin
• Amos Coggin
• Amoscommun
• Anasagunticook

• Anconganunticook
• Andrews Coggin
• Andros Coggan
• Andros Coggin
• Androscoggen
• Andrus Coggin
• Aumoughcaugen
• Pescedona
• Ameriscoggin River

Important tributaries

The most important tributaries of the Androscoggin Rivers are the following, where the location of the junction is given by:

Hydropower plants

On the riverbank of the Androscoggin River there are numerous hydropower plants.

The hydropower plants in downstream direction: