

EHRA designed an expansion that implemented the installation of a new triplex lift station operating in conjunction with the existing duplex lift station.
This project was the second phase of parks implementation outlined in the District's Parks Master Plan, which was completed by EHRA in 2007. Utilizing the site of a recently demolished former wastewater treatment plant provided an opportunity to create a passive park space for District residents.
EHRA completed preliminary engineering, phase one environmental site assessment and schematic development for the widening of Northpark Dr. between US 59 and Woodland Hills Dr. EHRA also provided program management, drainage analysis and design, traffic engineering, environmental documentation and schematic design for the roadway, as well as grade separation at the Loop 494/UPRR railroad crossing.
EHRA conducted traffic operations and access management studies for the Northpark Dr. corridor. This corridor is approximately 2.2 miles long and has major signalized and unsignalized intersections and driveways that access various subdivisions and industrial developments. These studies laid the groundwork for the widening of Northpark Dr. from a four-lane boulevard cross-section to a six-lane boulevard complete street. The new street design includes low impact development drainage, conventional drainage, a grade separation at the UPRR crossing with mechanically stabilized earth retaining walls, two at-grade crossings for bi-directional frontage access, reconstruction of two concrete bridges over a diversion channel, intersection improvements, a roadway-adjacent multiuse path and traffic signal improvements.
Drainage analysis and design included hydrologic and hydraulic studies of both existing and proposed conditions to demonstrate that proposed project components would not adversely affect the 100-year floodplain in the area. The roadway and traffic designs contained horizontal and vertical alignments, cross-sections, plan and profile, sidewalk and bicycle accommodations, intersection layouts, traffic control plans and signing and pavement markings.
As the program management firm, EHRA coordinated with TxDOT, UPRR, the City of Houston Council District E, COH Planning and Development Department, COH Public Works and Engineering Department, Montgomery County, Harris County, HCFCD and area residents throughout the project.
EHRA was selected by the client to provide engineering design and to serve as District Engineer for the 2,400 acre Towne Lake Development. Our survey department retraced the overall boundary and performed a topographic survey of the site.
Identified as a top priority during the development of the District’s Parks Master Plan, this portion of trail was the first phase of over two miles of planned trails to provide connectivity and recreation for District residents.
EHRA Engineering is driving progress with Harris County Precinct 3 through a major infrastructure transformation on Treaschwig Road. The two-lane asphalt road with open ditches is now being rebuilt into a four-lane divided concrete roadway with curb and gutter, designed for community needs and increased safety and mobility.
EHRA is proud to lead the planning, design and execution of the 1.6-mile reconstruction project from west of Aldine-Westfield Road to east of Birnam Wood Boulevard. The upgraded corridor includes a 32-foot median, a 5-foot sidewalk, a conventional storm sewer system and a wet-bottom detention pond. EHRA’s multi-disciplinary team brought together expertise in roadway and drainage design, traffic control, stormwater management and delivering bid-ready documents for construction.
The project went through a redesign phase after changing precincts, which included removing Low Impact Development (LID) features due to maintenance concerns, updating cross slope from center median bioswale drainage to conventional cross slope to outside gutters, updating to current county standards and extending the western project limits. It was also divided into two phases at Cypress Creek to streamline implementation. The EHRA team worked diligently with the County to expedite the design due to the importance of the project.
One major change requested by the County was to replace, rather than widen, the Cypress Creek bridge. EHRA performed a detailed hydraulic analysis to design a seven-span, four-lane bridge that meets modern Atlas 14 rainfall standards. The piers were strategically placed within the hydraulic shadow of the existing bridge to minimize environmental disruption, while ensuring better flood resilience.
More than a road widening, Treaschwig Road serves as an important connector to several major thoroughfares. The corridor connects to Mercer Botanical Gardens, one of the county’s most visited parks, and runs adjacent to a future equestrian trail. EHRA integrated thoughtful community-oriented features such as doubling the wet-bottom detention pond as a public-access horse-washing station and the new bridge that accommodates a 10-foot-wide pedestrian trail and a 6-foot-wide equestrian trail underneath preparing for future amenities to the Community.
Precinct 3 Commissioner Tom Ramsey highlighted, “EHRA was selected for this project because we need someone that understands all of the factors…It’s really the ability to bring a multi-faceted approach in terms of expertise to a project, and ultimately I think we receive the benefit.”
Construction is underway for Treaschwig Phase 1 from Aldine- Westfield Road to west of Cypress Creek and the County is planning to bid Phase 2 from Cypress Creek to west of Birnam Wood Boulevard in the upcoming months. Once complete, the project will improve regional mobility and support continued growth in the area. This leads to a safer, more efficient thoroughfare that enhances quality of life for surrounding neighborhoods and respects the natural and recreational character of the area.
With construction moving forward, Treaschwig Road is more than just pavement—it's progress, purpose and partnership in motion.