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.
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.
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 conducted a traffic engineering study to identify the impacts of a proposed master development located near the intersection of FM 1488 and Peoples Road in the City of Conroe.
Project totaled 640 acres including 1256 Residential Lots. EHRA designed, created construction plans, publicly bid and preformed Construction management.
EHRA was tasked with designing a solution that addressed water quality and public safety as well as improve the site for future recreation use.
As the first phase of the District’s Parks Master Plan, this project began initially as a maintenance issue within an existing dry detention basin. EHRA planners, hydrologists and landscape architects worked together to propose an alternative use for the space, re-developing the basin into an amenity pond. EHRA carefully selected native plant materials for both their ability to survive in the harsh conditions of the basin as well as providing filtration for improved storm water quality.
Water quality and public safety were the main concerns of the District’s board members, so EHRA's mission was to design a solution that addressed both of these concerns as well as improve the site for future recreation use. Phase one of this solution was to create amenity ponds by excavating the wet bottom, thus reducing difficulties associated with maintenance. Phase two of the project was the re-naturalization of the facility by choosing native plants that could handle typical weather conditions within the basin as well as possible 48 hour periods of inundation. Over 40 native species of trees, shrubs, perennials, and grasses were chosen for the site, as well as incorporating large boulders, slope stabilization and 3 aeration fountains.
Just three months after installation was completed, the facility was called upon to do its job as over 18 feet of storm water runoff was stored in the basin following a 10-inch rainfall event. Days after the water receded, there was no damage to the plant materials or landscape features, proving EHRA’s methods and design decisions to be effective. As the landscaping matured, the renovated ditch had become a popular recreation area as evidenced by increased use of the trail loop around the project high-bank. Additionally, many birds have routinely visited the project which is a testament to the health of the ecosystem.
The success of the revitalization resulted in additional trail and park improvements authorized by the District and implemented by EHRA. Additionally, the residents’ happiness with the project resulted in a rededication of the project to become the Lou Mautz Greenway, winning an Association of Water Board Directors Project Award in 2017. Over the life of the project, several EHRA associates have led our team, most recently by Adam McGovern, ASLA.
The success of the revitalization resulted in additional trail and park improvements authorized by the District and implemented by EHRA.
The success of the revitalization resulted in additional trail and park improvements authorized by the District and implemented by EHRA.
The success of the revitalization resulted in additional trail and park improvements authorized by the District and implemented by EHRA.
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