Comprehensive civil engineering design services for residential, commercial, and municipal projects across Texas. From detention pond design to flood control and traffic management, our licensed Professional Engineers deliver precise, code-compliant civil solutions.
Check Your Texas Property Before You Build
Use ALFAP TX for a free preliminary check of flood information, the likely permitting authority, and possible engineering needs for your project.
Check My PropertyPreliminary guidance only. Confirm requirements with the applicable authority.
Our Civil Design Services
Detention / Retention Pond Design
Design of stormwater detention and retention basins compliant with local jurisdictional requirements.
Land Development Engineering
End-to-end subdivision and site development including platting, infrastructure, and regulatory compliance.
Stormwater Calculations
Hydrologic and hydraulic analysis including peak flow, volume, and routing calculations (HEC-HMS, HEC-RAS).
Grading & Drainage Plan
Site grading, earthwork quantities, and drainage design ensuring proper runoff conveyance.
Utility Plan Design
Water, sanitary sewer, gas, and dry utility coordination and design for new developments.
Erosion Control Plan (TESC)
Temporary erosion and sediment control plans meeting TCEQ and local jurisdiction requirements.
SWPPP (Stormwater Pollution Prevention Plan)
Preparation and management of SWPPP for Construction General Permits under TCEQ.
Stormwater Quality (SWQ)
Post-construction stormwater quality best management practices design and reporting.
Flood Control Engineering
Floodplain analysis, flood mitigation design, FEMA LOMA/LOMR applications, and channel improvements.
No-Rise Study
Hydraulic engineering studies for FEMA no-rise certifications for construction in regulatory floodways.
Traffic Control Plan
Work zone traffic control and safety plans for roadway and construction projects.
Roadway & Pavement Design
Horizontal/vertical alignment, pavement structure, and signing & striping for new roadways.
Water & Wastewater System Design
Distribution and collection system design for potable water and sanitary sewer networks.
Culvert & Bridge Hydraulics
Hydraulic design and analysis for culverts, low-water crossings, and bridge openings.
Identifying the right civil scope
Civil engineering design covers the site infrastructure, drainage, stormwater, grading, utility, and permit-ready civil plans for residential, commercial, and municipal projects across Texas. Because civil work overlaps with several related disciplines, ALFA helps you identify the scope that fits your project — and where surveying, geotechnical, architectural, or MEP services are separately required. The specific services included for your project are defined in your proposal.
Civil design is distinct from surveying (boundary and topographic field work, performed by a licensed surveyor), geotechnical investigation (soil borings and engineering recommendations, performed by a geotechnical engineer), architectural design (building design and permitting, performed by an architect), and MEP engineering (mechanical, electrical, and plumbing systems). ALFA provides civil engineering design; surveying, geotechnical, architectural, and MEP services are included in your scope only when explicitly stated in your proposal.
Project steps
- 1Scope identification — ALFA reviews your address, proposed use, acreage, building area, and development stage to identify the civil services your project likely needs.
- 2Design — grading and drainage, stormwater and detention, utilities, erosion control, and site civil plans are prepared against the applicable jurisdictional criteria.
- 3Specialized coordination — where a project needs deeper analysis (detention sizing, hydrology, floodplain, or SWPPP), ALFA coordinates the specialized civil scope and references the related service pages below.
- 4Agency submittal & comments — ALFA coordinates the submittal with the reviewing jurisdiction and responds to agency comments; the authority having jurisdiction makes the final permit decision.
Civil design requirements are set by the permitting authority and depend on project conditions such as site size, impervious cover, drainage, and local criteria. ALFA does not publish generic thresholds and does not guarantee permit approval. Surveying, geotechnical work, architectural design, MEP engineering, and agency review and permit fees are included only when explicitly stated in your proposal. Requirements for your project are confirmed with the applicable jurisdiction.
Information needed for a quote
- Property address
- Proposed use or development concept
- Site acreage
- Building area (if known)
- Development stage (raw land, replat, redevelopment, addition, etc.)
- Available survey or topographic information (if available)
- Agency or reviewer comments (if available)
You don't need all of these to start the conversation. Share what you have and ALFA will help identify what else is needed for your proposal.
Availability: Civil engineering design is available statewide. On-site visits, when needed, are scheduled based on project location.
How to Request a Proposal
Use the button below to request a proposal. Describe your project, site address, and any specific concerns or requirements.
Related Engineering Services
Site Development Engineering
Full site layout, grading, drainage, utilities, and permit coordination.
Drainage Design
Site drainage, stormwater conveyance, and detention design.
Detention Pond Design
Stormwater detention sizing, routing, and outlet design.
Utility Design Engineering
Water, sanitary sewer, and storm drain system design and permitting.
Permit Support Services
Permit application preparation, submittal coordination, and agency comment response.