THIS IS WHO WE ARE
Our Mission
Every community deserves safe, resilient infrastructure. With your commitment and our engineering expertise, we can reduce flood risks and deliver projects that make a lasting impact and a better future in Texas.
At Diaz Engineering, LLC, we deliver tailored engineering solutions that address complex challenges in water resources, flood risk reduction, and program management—ensuring practical, sustainable outcomes.
What sets us apart
The Team
A passionate team with over 30 years of expertise, grounded in innovation, sustainability, and resilience. Our mission is to help you safeguard communities with projects that create lasting impact—on budget, on time.
With over 25 years of experience in flood control and civil engineering, Imelda Diaz, P.E., brings unparalleled leadership to Diaz Engineering.
As former Director of Engineering at the Harris County Flood Control District, she managed a team of 64 employees and led multi-million-dollar flood risk reduction projects in partnership with entities like the US Army Corps of Engineers, TxDOT, and the City of Houston.
Her expertise in navigating regulations and delivering large-scale projects makes her a key guide in safeguarding communities and driving impactful solutions.
Key Highlights:
25+ years of civil engineering and flood control expertise
Former Director of Engineering at Harris County Flood Control District
Managed federal projects valued at $800 million
Long-standing partnerships with USACE, TxDOT, City of Houston, and Harris County
Registered Professional Engineer, Texas (No. 122101)
Experience & Strengths:
- Extensive leadership in mega flood control projects with multiple stakeholders and funding sources.
- Expertise in hydrology, hydraulics, detention design, and channel conveyance improvements.
- Strong knowledge of HCFCD policies, financial accounting, and auditing standards.
- Skilled in contract negotiation with consultants and government agencies.
- Proven ability to manage complex programs while ensuring regulatory compliance.
- Strong communication, leadership, and team-building skills.
With over 14 years of experience, Stephanie brings a strategic blend of technical expertise and leadership, having successfully managed projects such as the San Jacinto River Authority and Harris County Flood Control District.
She delivers complex infrastructure projects on time and within budget, ensuring precision and community impact.
Key Highlights:
+14 Years of design engineering & project management experience.
Bilingual: English & Spanish.
70% Availability (Currently supporting HCFCD through 2028).
Registered Professional Engineer, Texas (No. 132971).
Certified Floodplain Manager, Texas.
Experience & Strengths:
- Extensive project management and coordination across civil design projects.
- Expertise in roadway, site grading, drainage, stormwater systems, utilities, and levee repair.
- Proficient in Civil 3D and MicroStation for plan production.
- Strong skills in contract development, administration, and proposal negotiation.
- Business development and client relationship management.
- Proven ability to deliver projects on time and within budget for agencies like SJRA and HCFCD.
Our Culture
At Diaz Engineering, we combine deep technical knowledge with a collaborative approach that ensures every project is handled with precision and care. Our team’s diverse skills and commitment to excellence allow us to navigate complex challenges and deliver sustainable solutions that truly make a difference.
What Drives Us Forward:
- Strategic thinking
- Knowledge management
- Team-building activities
- Collaboration, growth
- Meaningful connections.
Our Partners
Our Story
Our Background
Diaz Engineering, LLC, a Texas-based minority, woman-owned, and HUB certified consulting engineering firm, specializes in water resources and program/project management. Our expertise lies in providing comprehensive solutions for flood damage reduction projects, with a client base primarily consisting of government agencies.
Recognizing the urgency of flood control in Texas, our team at Diaz Engineering has played a pivotal role in numerous initiatives across Harris County. Our mission is to safeguard communities and enhance citizens’ quality of life. With a strong focus on sustainability and resilience, we strive to create safer and more prosperous futures for all Texans.
As an extension of our clients’ project teams, we work closely with them to ensure the successful and timely completion of projects crucial for our communities.
Our Story
What we have accomplished
Today, we proudly collaborate with clients like the San Jacinto River Authority, Port of Houston, and Houston Airport System, contributing to projects that shape the future of Texas communities.
We are also registered with the Texas Board of Professional Engineers and Surveyors (Registration Number F-23756) and hold MWBE, SBE, and HUB certifications with the City of Houston, METRO, and the State of Texas—reinforcing our commitment to quality and professional standards.
Our Certifications
