Greens Bayou Trail Phase 2

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.

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.

Harris County MUD No. 536 Wastewater Treatment Plant & On-Site Lift Station Expansion

The facility features an activated sludge process system. Additionally, the facility is equipped with an emergency standby diesel generator.

West Road Phase 2 Sidewalk

EHRA worked with the District to create a comprehensive Parks Master Plan, which included recommendations for the development of over two miles of hike/bike trails adjacent to local streets, and within flood control and utility pipeline easements. The District began implementation of the Plan by prioritizing the beautification of West Road, a major arterial street that runs through the District.

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.

22 July 2021

CPS Quarterly Report (August 2021)

Tim Hodes, PE

Construction Pricing Update

The EHRA Construction Phase Services Group has been tracking common infrastructure item costs during the 2021 unforeseen market fluctuation. Price increases are observed across the board, but we are focused here on the most common items such as concrete paving, storm drain, water and sanitary sewer pipe. Water and sanitary sewer pipe show the sharpest increase and the suppliers have confirmed PVC resin shortage is the cause.

Water Trends

We have been observing trends in pricing increases with multiple water related items.

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8” PVC Water main – 8” PVC water main is bidding at an increase of 60% since the start of 2021.
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Sanitary Trends

We have been observing trends in pricing increases with multiple wastewater collection items.

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Of the common infrastructure items EHRA has been tracking for our clients projects, PVC 8” sanitary sewer main has seen the most drastic surge in costs. 8” PVC sanitary sewer main is bidding at over 60% increase since the start of 2021.
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Drainage Trends

We have been observing trends in pricing increases with multiple drainage related items.

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24” RCP storm drain – Reinforced concrete storm drain pipe is seeing a 34% surge in bid prices since the beginning of the year.
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