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 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 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 offered its Landscape Architectural services to complete a Parks and Trails Master Plan for the District.
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.
We have been observing trends in pricing increases with multiple water related items.


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

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

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



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


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


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

