Four Corner - Texas Water Development Board

areas less than one square mile, and/or areas protected by levees from the I 00-year
flood. Specifically, Sweet City Acres, a small residential subdivision located along the
southern boundary of the study area, consists of an area protected from the I 00-year
flood by a levee; this levee could however be subject to possible failure or overtopping
during larger floods.
Aside from the channel of Keegans Bayou, located in the northeastern corner of the
study area, and the area surrounding Red Gully, located in the southwestern corner of the
study area, no other flood zones were identified during the course of this study.
G. Growth Areas and Population Trends - 1990 Census data for this area of Fort
Bend County was obtained from the Houston-Galveston Area Council (HGAC) and used
to determine existing population estimates within the planning area. According to the
census data, in 1990 approximately 1, 150 people resided within the planning area in 350
housing units which is equivalent to 3.3 persons per household. A recent field survey of
the planning area indicates that several older housing units appear to be uninhabited but
that new housing units have been constructed (primarily in the Atanacia Martinez
subdivision) since the 1990 census. For this water and sewer study, the 1998 estimated
population for the planning area was held at 1, 150 persons with approximately 350
existing housing units within the planning area.
The population of Fort Bend County grew at an average annual rate of just under ten
percent in the 1980's and continued to grow at an average rate of just under six percent
during the 1990's. The HGAC forecasts that the average annual growth rate within the
county will slow to less than three percent through the year 2020. Historically, the Four
Corners area has not observed population increases that mirrored the rest of Fort Bend
County. With the construction of water and sanitary sewer facilities within the Four
Corners area, population increases within the area are to be expected. For the purposes
of this planning study, average annual population increases of three percent (consistent
with the rest ofFort Bend County) were used for the Four Corners planning area. Based
upon this rate, the population of the Four Corners area is projected to increase from
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Preliminary Engineerng Report