

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 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.
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.
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. Coordination with TXDOT, area landowners, utility companies, and Brazoria County was integral in obtaining approval and acceptance of the project.
EHRA was selected as one of two firms to provide professional surveying services under contract to Houston Community College System.
In this episode Councilmember Joel Castro (City of Alvin), Councilmember Dan Davis (City of Manvel), and Councilmember Adrian Hernandez (City of Pearland) join EHRA Engineering's Chau Bao, P.E. and Sivaji Senapathi, P.E. to discuss several topics including each of the City Councilmembers’ backgrounds, future development, and the impact of the COVID-19 crisis and the related challenges facing their respective cities.
We have the Podcast posted across all channels. Please click one of the links below to listen or watch.
Youtube: https://www.youtube.com/watch?v=x_q6iGkLEzc&feature=youtu.be
Apple Podcasts: https://podcasts.apple.com/us/podcast/conversations-with-councilmembers-alvin-manvel-pearland/id1510275287?i=1000477627524
Spotify: https://open.spotify.com/episode/1ukVshXBXN6mLZilXf4qKF?si=HdGXp4lMTpO6E9mUCwInag
Pocketcasts: https://pca.st/hlr1j9r4
Radio Public: https://radiopublic.com/the-ground-down-G70VoR/s1!9bf61