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||Flood of record occurred on September 3rd, 2017, during Hurricane Harvey. Massive widespread floodign occurred. Part of West Columbia is threatened.
||Homes in Columbia Lakes are threatened.
||Major lowland flooding continues with widespread structure flooding occurring.
||Lowest areas in East Columbia are threatened.
||Major lowland flooding continues with subdivisions such as Columbia Lakes, Mallard Lakes and Great Lakes being cut off. Low lying areas along State Highway 35 on the left bank are flooded with approximately 0.5 to 1.0ft of inundation.
||Low lying areas along State Highway 35 on the left bank are flooded. State Highway 35 has at least 0.5ft of inundation.
||Major lowland flooding begins as water escapes the mainstem of the Brazos River near the gauge. Staet Highway 35 is impassable on the left bank if soils are saturated. Low lying homes cut off and homes across from Columbia Lakes are threatened.
||Moderate flooding continues as widespread county road flooding occurs. State Highway 35 is close to being threatened if soils are saturated.
||Moderate lowland flooding begins as water escapes the mainstem of the Brazos River approximately 6 miles downstream of the gauge. Lowest homes in Bar X are threatened.
||Minor lowland flooding begins with county roads threatened from backwater including Pony Trail and Mitchell Road/645
||Action stage begins as water begins to backup tributaries of the mainstem specifically Varner Creek.