Rivière Ha! Ha!
| Rivière Ha! Ha! | ||
 Pyramid of ha! Ha! on the banks of the Rivière Ha! Ha! in La Grande Baie |
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| Data | ||
| location | Saguenay – Lac-Saint-Jean in Québec (Canada) | |
| River system | Saint Lawrence River | |
| Drain over | Saguenay Fjord → Saint Lawrence River → Atlantic Ocean | |
| source |
Laurentine Mountains 47 ° 51 ′ 26 ″ N , 70 ° 51 ′ 8 ″ W. |
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| Source height | approx. 750 m | |
| muzzle | into the Baie des Ha! Ha! ( Saguenay Fjord ) Coordinates: 48 ° 19 ′ 4 " N , 70 ° 51 ′ 33" W 48 ° 19 ′ 4 " N , 70 ° 51 ′ 33" W
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| length | approx. 60 km | |
| Catchment area | 609 km² | |
| Reservoirs flowed through | Lac Ha! Ha! | |
| Big cities | Saguenay | |
The Rivière Ha! Ha! is a tributary of the Saguenay Fjord in the administrative region Saguenay – Lac-Saint-Jean in the eastern part of the Canadian province of Quebec .
The Rivière Ha! Ha! rises in the Laurentine Mountains in the reserve Réserve fauniqe des Laurentides . From there it flows in a predominantly northerly direction through the municipality of Ferland-et-Boilleau . It flows through the outflow-regulated lake Lac Ha! Ha! . Then there are 5 weirs along the course of the river. Shortly before reaching the town of La Baie, which is incorporated by Saguenay, it flows through a gorge. It then turns to the northeast, flows through the La Grande Baie district and finally flows into the Baie des Ha! Bay on the south bank of the Saguenay Fjord ! Ha! . The Route 381 leads in parts along the river. The Rivière Ha! Ha! has a length of about 60 km. It drains an area of 609 km². Its catchment area borders on that of the Rivière à Mars , which also runs into the Baie des Ha! Ha! flows out.
Covered bridges
The covered bridge Pont du Lac Ha! Ha! spans the river below Lac Ha! Ha!.
Dam break in 1996
On July 20, 1996 it came after heavy rainfall on the upper reaches of the river at Lac Ha! Ha! to a dam breach. The core of the dam, made of clay , was softened and washed away. 30 million m³ of water then flowed down the valley. The flooding destroyed part of Route 381 on the riverbank and submerged parts of La Grande Baie . The tidal wave also led to sediment deposits on the lower reaches of the river. The dam on Lac Ha! Ha! was renewed the following year as a concrete structure.