Harris County MUD 449 Wastewater Treatment Plant Expansion

Facilities requiring expansion were also common wall construction, and the EHRA team converted the facilities into aerobic digesters and sludge thickeners.

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.

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.

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.

Meridiana

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.

13 August 2020

The Ground Down, Episode Six

Admin

In this episode, EHRA Engineer's Jim Russ (President and CEO) and Chris Browne (Vice President, Practice Area Leader - Planning & Visioning) are joined by Alief ISD Superintendent, HD Chambers, University of Houston at Sugar Land and Katy Associate Vice President, Academic Affairs and COO, Dr. Jay Neal and Houston Community College Northwest President, Dr. Zach Hodges to discuss several topics surrounding the effects of COVID-19 on their respective institutions in the Greater Houston region.

We have the Podcast posted across all channels. Please click one of the links below to listen or watch.

Youtube: https://youtu.be/g8OAWh46gn8

Anchorfm: https://anchor.fm/the-ground-down/episodes/Effects-of-COVID-19-on-Houston-Area-Schools-Alief-ISD--HCC-NW-and-UH-at-Sugar-Land-and-Katy-ei3d4j

Spotify: https://open.spotify.com/episode/4BO8obuwxsMRY76OFSWXhl

Radio Public: https://embed.radiopublic.com/e?if=the-ground-down-G70VoR&ge=s1!a0e0add3f9ddaca49e1df8fafecdb980fcf7a5aa

PODCAST: The Ground Down