Four Corner - Texas Water Development Board

The streets within the Atanacia Martinez subdivision include a combination of dedicated
street rights-of-way and easements for access to existing housing units in the
subdivision. Many of the east-west streets in the subdivision between Second Street and
Richmond-Gaines Road have dedicated right-of-way widths of 50-60 feet. Those
portions of the same streets located east of Second Street appear to exist only as access
easements. In order to construct public water and sanitary sewer facilities within the
access easements, granting of utility easements from the underlying property owner will
be necessary or the easements may be converted to public road rights-of-way.
Conversion of the easements to right-of-way will require coordination with the property
owner and Fort Bend County to ensure that platting and roadway construction issues are
addressed.
D. Impacts on Construction - The Four Corners area is an area that is mostly
undeveloped, however rural homes are located throughout the area and some modern
residential developed is located in the northeast part. The Sprint Landfill is located near
the center. South and west of Red Gully the project lies in the Quaternary alluvial
deposits associated with the Brazos River floodplain. Sands and silts, along with clayey
soils are common in these alluvial deposits. Northeast of Red Gully the area is underlain
by clayey soils associated with the Beaumont Formation. The major impact on
construction will be the presence of a high groundwater level that may be encountered in
the southern part of the area. The nearest known fault is the Clodine Fault which crosses
FM 1464 about 1500 feet northwest of area. The Renn Scarp is located about 2000 feet
northeast of the site. These are the known active faults in the area and neither are known
to be within the Four Corners area.
Existing geotechnical reports relevant to the study area are summarized in the following
table.
Service Area Generalized Soil Conditions Groundwater
Level Range
Four Corners Surface strata consisting of firm to very stiff 8 to 15 feet
clays and generally underlain by very loose to
medium dense sands and silts
Preliminmy Engineering Report
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