Big River (Missouri) - Miscellaneous

Miscellaneous

• This river is the namesake of Big River Township in Jefferson County.
• According to the National Weather Service, the maximum flood stage of the Big River at Byrnesville occurred on August 21, 1915, and was 30.20 feet (9.20 m), with a flow of roughly 80,000 cubic feet (2,300 m3) per second. Flood stage at Byrnesville is 16 feet (4.9 m). The lowest flow measured, 25 cubic feet (0.71 m3) per second, was recorded on August 30, 1936. The average annual discharge here is 862 cubic feet (24.4 m3) per second. August is the month with the lowest average flow, while April has the highest average flow.
• The river is also the namesake of Big River Fire Protection Incorporated, a rural fire department in St. Francois county.