Course of the Colorado River Topock Marsh in Topock Gorge and widens into Lake Havasu, formed by Parker Dam. Lake Havasu provides recreation as well as the home of the retired U.K. London Bridge in Lake Havasu City, Arizona, now the New London Bridge. Near Parker Dam are the first two major diversions of the lower Colorado: the Colorado River Aqueduct, which travels west to Los Angeles and San Diego, California; and the Central Arizona Project, which sends water east towards Phoenix and Tucson, Arizona. The intermittent Bill Williams River joins the Colorado from the east in Lake Havasu, just above Parker Dam. The river
Lake Havasu City, Arizona °F (16 °C) to 70 °F (21 °C). Lows in winter average between 40 °F to 50 °F (4 °C-10 °C); temperatures do occasionally dip below 40 °F (4 °C). The city has extremely hot summers, with highs normally remaining between 100 °F and 115 °F (38 °C - 46 °C). Highs are known to exceed 120 °F (49 °C) during the summer months. Overnight low temperatures stay between 80 °F to 90 °F (27 °C - 32 °C) for the months of July and August. The highest overnight low temperature (record high minimum) ever recorded in Lake Havasu City