In the 1960s, the Kremasta Dam in the Aitoloacarnania-Evrytania boundary was under construction. The area is not forested. The dam, made of concrete, took years to complete, eventually flooding a portion of the western part of the prefecture of Eurytania. The dam includes a power station with transformer lines in the east. The dam powers electricity for the western part of Greece and the central part. It caused some soil erosion in some flooded valleys. The Kastraki Dam is downstream and was completed in 1969. Downstream of Katsiki, the Stratos Dam was completed in 1989. The arch bridges includes the Karafilio and the Ardanovo.