

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.
Engineering design and construction phase services of water, sewer, drainage and paving for four subdivision sections and off-site channel (123 acres out of a 400 acre subdivision). There was 60-feet of elevation difference on this site and wooded lots were left in their natural state which required the installation of retaining walls.
EHRA assisted with the district creation of Montgomery County Municipal Utility District No. 126 to accommodate a ±329 acre master planned community located in northern Montgomery County in the City of Conroe, south of League Line Road, west of Longmire Road, and adjacent to Lake Conroe.
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.
A 720-acre gated master planned community located off Telge Road, just north of Willow Creek. See how EHRA was involved in this project.
The primary objective of the Walker Street Rehabilitation project is to generate solutions that safely accommodate and connect all traffic modes for this important thoroughfare in the heart of TIRZ 15 (located in East Downtown Houston). The EHRA team, led by Project Manager Kyle Macy, PE, reimagined the roadway functions by rearranging unsafe bike lanes, redesigning bike crossings at major intersections, and reconnecting bike networks. This reimagination integrated future considerations for the North Houston Highway Improvement Project (NHHIP). The NHHIP is a planned reconstruction of Interstate Highway 45 North, between Houston's downtown and the North Sam Houston Tollway (also known as Beltway 8) that includes segments of connecting freeways.
Macy, along with EHRA engineers Ashley Sowards, PE, Diego Gil, E.I.T., ENV SP, and Jessica Jia, PE, PTOE, RSP1, ENV SP, developed various alternatives to best fit safe bike lanes within existing pavement limits. In order to combat the limited pavement width of Walker Street, the team positioned bike lanes behind modified handicap-accessible parking, resulting in improved safety for both bike lane end users and individuals utilizing the modified spaces. This design option was successfully adopted by Houston Public Works and TIRZ 15.
Background
EHRA is privileged to serve TIRZ 15 for engineering services. As part of this partnership, EHRA is responsible for supporting the execution of high priority capital improvement projects. For the Walker Street Rehabilitation project, EHRA is responsible for providing design phase services and subsequently guiding the venture through both the bid and construction phases. As of May 2022, the project is currently in the final design approval phase.
Collaboration
Early in the design phase, the City of Houston (COH) informed the EHRA design team of collapsed sanitary sewer segment within the scoped limits for this project. In response to this challenge, EHRA and the COH partnered to organize and implement an interlocal agreement between the COH and TIRZ 15. This agreement states that the sewer segment repair is included in the Walker Street Rehabilitation project and the COH will be responsible for costs associated with the repair. EHRA’s efforts to establish this agreement not only protect the public dollar, but also seamlessly address a significant and necessary public works restoration.
Additionally, during the 90% review stage, the COH identified street lighting as an extra requirement for the project. As this item was not a part of the original scope or budget, EHRA promptly mobilized to incorporate a street lighting plan into the project. Working diligently with the COH, the construction project engineer was able to provide optimal pricing in an agreement that permits TIRZ 15 to expand lighting along this corridor at a minimal cost.
Safety
During project conception, the Walker Street at Emancipation Avenue intersection was identified as a safety risk for those persons utilizing the connection of the striping plan on Walker Street and the Columbia Tap Trail, a community amenity heavily trafficked by bikers and pedestrians throughout East Downtown. Due to active support and participation on the parts of the TIRZ 15 board members and administrator, along with the COH multimodal group, the intersection will now be updated with a signalized, channelized, pedestrian-activated crosswalk to protect individuals crossing this intersection.
Macy shares that the most exciting element of this project experience was successfully coordinating with TIRZ 15, private stakeholders, and the City of Houston, all with the common goal of maximizing citizen safety. In recent years, the stretch of Walker Street being rehabilitated created a major safety concern for cyclists due to hazards caused by an abandoned rail line. Multiple reports of bike riders suffering accidents after a bicycle wheel lodged in the rail line brought this issue to the forefront. To remedy this hazard, the project includes removal of the abandoned rail in conjunction with newly surfaced roadway that integrates a fresh striping plan flowing harmoniously with the overall Houston Bike Plan.