MUD 188

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.

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.

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.

West Road Phase 3 Landscape

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.

15 December 2021

CPS Quarterly Report (December 2021)

Tim Hodes P.E. Practice Area Leader Construction Phase Services

Construction Pricing Update

EHRA Construction Phase Services has completed an 11 month review of construction prices for common civil infrastructure items. The results continue to show steady price increases for items where construction materials are in limited supply. Domestic PVC resin and cast iron material limitations continue to drive water and wastewater prices up at a steady rate. Concrete products, and those items that feature concrete materials, appear to be stabilizing and following the inflation trend.

Stay tuned to EHRA for the latest trends in construction pricing and contact your EHRA project manager for an analysis of your projects.

Water Trends

We have observed a steady trend of price increases for various water distribution 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 observed a steady trend of price increases for 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 observed some stabilization in prices for drainage 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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Paving Trends

Prices for concrete paving continue to climb at rates closer to inflationary trends.

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6” concrete paving – Concrete street paving is showing a moderate 9% price increase since the beginning of the year.
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