Удрайка

Удрайка is 54 km long, and has a stream level of 1.

Map of Удрайка

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Удрайка flows into Луга , which it joins at N 58° 38′ 21″, E 30° 3′ 10″ at OSM node n250790862, and there 312 km of total upstream flows in.

Удрайка has 3 tributaries.

Ковалёвка (Гусынка), which joins it at N 58° 38′ 17″, E 30° 17′ 28″ at OSM node n3186531191, and 7 km of total upstream flows in.

(unnamed), which joins it at N 58° 38′ 42″, E 30° 22′ 7″ at OSM node n2471365619, and 3 km of total upstream flows in.

(unnamed), which joins it at N 58° 39′ 57″, E 30° 6′ 6″ at OSM node n3672604392, and 136 m of total upstream flows in.