The heavy rainfall has caused South Mayde Creek, near Addicks Reservoir, to flow over its bank in the evening.
The Harris County Flood Control District reported water completely covering Saums Road between Greenhouse and Barker Cypress in the midst of the overflow.
Within a matter of an hour, the water level rose two feet by 5 p.m.
The lower section of the creek is located next to the Addicks Reservoir, which, along with the Barker Reservoir, famously went over its banks during Hurricane Harvey last year.
Earlier in the week, the Army Corps of Engineers did not expect a similar overflow for the two reservoirs as the week progressed.
READ MORE: Addicks and Barker reservoirs not expected to overflow during rainfall event this week
Army Corps of Engineers eyeing Addicks reservoir