The purpose of this project was to convert the existing at-grade crossing of Brazoria County Road 56 (CR 56) and State Highway 288 (SH 288) into a diamond interchange that includes a new overpass bridge and providing access to the newly developed Meridiana Development. Coordination with TXDOT, area landowners, utility companies, and Brazoria County was integral in obtaining approval and acceptance of the project. The main design challenge for this project was to accommodate double intersections on the west side of SH 288 to tie into existing access roads with two-way traffic and a new southbound on-ramp within a close proximity. EHRA coordinated with TxDOT throughout the project from preliminary concepts for the intersection and bridge through final design and construction. Each component of this project was designed in accordance with TxDOT standards and criteria.
The facility features an activated sludge process system. Additionally, the facility is equipped with an emergency standby diesel generator.
Facilities requiring expansion were also common wall construction, and the EHRA team converted the facilities into aerobic digesters and sludge thickeners.
EHRA completed a site-specific planning and visioning study for the proposed 470-acre San Jacinto Boulevard District (SJBD) in Baytown, Texas.
EHRA performed preliminary drainage area delineations for nine creek crossings and calculated approximate 100-year flows for each culvert crossing. Culvert structures were sized for each of the six crossings, ranging from 48” round pipe culverts up to dual 5’x5’ box culverts.
Cane Island is an upscale master planned community located on the west side of the City of Katy in Waller County. The 1,009-acre development is comprised of 45 sections, including dedicated areas for approximately 2,100 single-family residential homes, a new elementary school in Katy ISD, and a community park. The Cane Island project started in 2010 and is projected to see complete home build-out within the next three years. EHRA is contracted to provide surveying and engineering design for excavation, paving and grading, water mains, storm sewers, sanitary sewers, detention basins, and other amenities.
An important objective for the Cane Island master planned community was to remove portions of the area that fall in the 100-year floodplain. The overall project includes the design of 4 complex drainage systems with 25 detention ponds, also serving as amenity features, that outfall into Cane Island Branch and Snake Creek. Some of the more attractive features of the development are abundance of beautiful landscaping and planting features, the major connectivity provided by the many walking trails and the Amenity Center that includes a restaurant and recreation center on the community property. “One of the most challenging aspects of this project was working around the various pipelines, easements and electric transmission towers across the project site. It required a great coordination effort with both private and public entities, and we had to implement creative design solutions to make this land developable,” said Project Manager, Thomas Arnold.
Improvements to US Highway 90 and Cane Island Parkway down to Interstate 10 were designed and constructed for the projected traffic increases with growth of the development. Water supply and wastewater treatment for this project is provided by the City of Katy.
