Terra Estates — 62-Lot Residential Subdivision Civil Engineering in Manvel, TX
Manvel · Brazoria County · Texas
Residential & Multifamily Development

Complete civil design and construction management for a Brazoria County subdivision
JRH Engineering delivered complete civil engineering design and construction management services for Terra Estates — a 62-lot residential subdivision with a construction value of $1,599,449, coordinated from initial infrastructure design through final municipal approval and active construction management.
AT A GLANCE
Sanitary sewer
Public sanitary sewer extension connecting the development to the existing municipal system
Hydraulic analysis, pipe sizing, and agency coordination through final approval
Roadway design
Internal subdivision roadway network
Pavement cross-sections, curb and gutter, and geometric design
TxDOT permitting for public roadway access — managed from application through approval
Stormwater
Comprehensive storm sewer system designed to manage subdivision runoff
Full compliance with local drainage and stormwater requirements
Construction management on call throughout the build
Contractor submittal review
RFI responses
Site observation visits
Field conformance verification against permitted documents
The Challenge
A 62-lot subdivision required a public sanitary sewer extension, TxDOT-permitted roadway access, and a fully compliant stormwater system to come together on one coordinated timeline — all while keeping pace with the builder’s construction schedule through a $1,599,449 build-out.
JRH’s Approach
JRH designed the internal roadway network and managed TxDOT permitting for public roadway access from application through approval. The sanitary sewer extension was sized through full hydraulic analysis and carried through agency coordination to final approval. A comprehensive storm sewer system was engineered to fully comply with local drainage requirements. JRH then remained engaged through construction, providing active on-call support: contractor submittal review, RFI responses, site observation visits, and field conformance verification against the permitted documents.
The Results
01
62 residential lots designed, permitted and built
02
$1,599,449 construction value
03
TxDOT permitted public roadway access
04
Full civil design plus active construction management by the engineer of record
Frequently Asked Questions
What was the main engineering challenge on the Terra Estates subdivision project?
The 62-lot subdivision required public sanitary sewer extension, TxDOT-permitted roadway access, and a fully compliant stormwater system to come together on one coordinated timeline, all while keeping pace with the builder's construction schedule.
How did JRH Engineering approach the civil design for Terra Estates?
JRH designed the internal roadway network and managed TxDOT permitting for public roadway access from application through approval, sized the sanitary sewer extension through full hydraulic analysis, and engineered a comprehensive storm sewer system, then remained engaged through construction with submittal review, RFIs, and field verification.
What were the results of the Terra Estates project?
JRH delivered a fully permitted 62-lot subdivision with a construction value of $1,599,449, including public sanitary sewer extension, TxDOT-approved roadway access, and active construction management through build-out.
