Northpark Drive Mobility Project

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.

Towne Lake

In 2006, Caldwell Companies sought to create Towne Lake as a community where residents and services could be connected by water. Their vision included boat docks and marinas augmenting traditional walking trails to navigate a vibrant residential community. EHRA was the perfect partner to take Caldwell Companies’ vision and create this livable suburban oasis.

League Line

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.

Greens Bayou Trail Phase 1

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.

Visionaries Designing the Future

Discover who we are, how we got started and why we are the right company for your project.

EHRA Engineering has provided exceptional engineering services throughout the Greater Houston region for over 85 years. We are a multidisciplinary civil engineering firm capable of meeting and exceeding client expectations with the depth and breadth of our dynamic experience, our industry and regional knowledge, as well as our networks that can only be established through longevity. In addition to our tenure in Houston, EHRA is distinguished by our honest, hard-working team members who understand the importance of integrity and embody the willingness to make things right.

We employ a complement of professional staff, including licensed professional engineers, engineers-in-training, certified planners, registered professional land surveyors, licensed professional landscape architects, civil designers and master technicians. The professionals in each of our practice areas work together seamlessly to support our clients, city, county, state and other governmental agencies in their respective missions to create optimal conditions, amenities and services for the communities, individuals and companies that rely on them. EHRA takes pride in our storied contribution to the region’s history, growth and success and in our reliable approach to innovative project planning and design.

Making History Since 1936

We have built a legacy, one we are proud to call our own. As the second oldest engineering firm in Houston, EHRA Engineering has seen our city transform and flourish over the years, and we are proud to contribute to this expansion. From the beginning, we have set ourselves apart by employing honest, hard-working people who understand the importance of integrity and possess the willingness to always make things right. View our timeline to explore the important events that have shaped us into who we are today.

See Our Transformation

EHRA Engineering team has been an important part of success in a multitude of my projects throughout years. EHRA leadership and their team of engineers provide innovative and cost-effective solutions and work closely with our project team from the acquisition of land through the project development. Their response time for any issue is remarkable. I highly recommend them to anyone who wants great engineering on time and always with competitive pricing. I look forward to continue working together on future endeavors.

Kelli Odum, Forestar Group Inc.

Interested in Working With EHRA Engineering?

We bring our professionalism and expertise to every project we undertake. Want to experience the difference that comes when creativity and passion collide? Review our resources for more information or reach out to us today.

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Northpark Drive Mobility Project

Towne Lake

MUD 43

League Line

Greens Bayou Trail Phase 1

Visionaries Designing the Future

Enhancing Our Community With Every Project

Making History Since 1936

Leading With Integrity

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Interested in Working With EHRA Engineering?