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Business Details
36 Years
experience
Trusted Civil Engineering Services in Dallas, TX
Founded in 1990 by licensed professional engineer Sedi Toumani, Dal-Tech Engineering has built a reputation for excellence in civil engineering and land surveying services. Our firm operates with core values of integrity, quality, and reliability, serving both public and private sector clients across Texas. With over three decades of experience, we've delivered projects for major agencies including TxDOT, NTTA, and Dallas Water Utilities while maintaining rigorous quality control standards.

As a certified Historically Underutilized Business and Small Business Enterprise, we combine technical expertise with ethical practices to exceed client expectations. Our 2021 partnership with SAFEbuilt has further strengthened our capabilities in community-focused infrastructure development.
Services
Trails Water and Wastewater Design Utility Coordination SUE Services Airports Parks Survey Services Roadway Design Traffic Studies Signal Design
Details
  • Year established: 1990
Highlights and features
  • 30+ years of civil engineering experience with Texas agencies
  • Hands-on principal-in-charge oversight for all projects
  • Multiple state certifications including HUB, SBE, and WBE
  • Proven QA/QC processes for project excellence
  • Established partnerships with major infrastructure authorities
Associations and certifications
  • Historically Underutilized Business (HUB) certified by State of Texas
  • Small Business Enterprise (SBE) certified by TxDOT
  • Women-Owned Business Enterprise (WBE) certified by NCTRCA
What people say
High level of knowledge Outstanding communication methods Instrumental in funding procurement Impressively qualified staff Exceeded expectations
Services
Civil Engineering
Our civil engineering services encompass roadway design, bridge layouts, and complex highway projects. We provide technical solutions for municipal infrastructure, transportation systems, and utility networks. With TxDOT pre-certifications in multiple categories, our team delivers code-compliant designs that meet federal and state standards.
Land Surveying
We offer comprehensive land surveying including parcel plats, legal descriptions, and right-of-way mapping. Our survey teams utilize advanced technology for accurate boundary determinations and construction layout. Services meet Texas Board of Professional Land Surveying requirements for public and private projects.
Utility Coordination
Our utility coordination services ensure seamless integration of water, wastewater, and stormwater systems. We work with municipalities to develop sustainable utility networks while managing subsurface utility engineering (SUE) to prevent conflicts during construction projects.
Traffic Engineering
We conduct traffic studies, signal design, and highway-rail grade crossing assessments. Our solutions optimize traffic flow while meeting Federal Highway Administration guidelines. Services include signing, pavement markings, and channelization plans for road safety improvements.
Flood Analysis
Our flood analysis services include hydrologic modeling and hydraulic design for stormwater management. We provide erosion control solutions and floodplain mapping that comply with FEMA and US Army Corps of Engineers standards for infrastructure resilience.
People
Sedi Toumani
President & Founder
Licensed Professional Engineer with 30+ years of experience in civil engineering and surveying. Established DAL-TECH in 1990 with a commitment to ethical standards and technical excellence. Leads project oversight and strategic direction for the firm.
James Wellington
Pipeline Project Manager
Professional engineer with Dallas Water Utilities who has collaborated with DAL-TECH on multiple infrastructure projects. Recognizes the firm's technical expertise and budget management capabilities in utility design assignments.
Questions
What engineering services does DAL-TECH offer?
We provide civil engineering services including roadway design, bridge layouts, utility coordination, traffic engineering, and flood analysis. Our surveying division handles land surveying, parcel plats, and right-of-way mapping for public and private sector clients.
Is DAL-TECH certified as a minority-owned business?
Yes, we are certified as a Historically Underutilized Business (HUB) by the State of Texas and maintain Small Business Enterprise (SBE) status with TxDOT. We also hold Women-Owned Business Enterprise (WBE) certification from NCTRCA.
What geographic areas do you serve?
We primarily serve the Dallas-Fort Worth metroplex and surrounding counties including Dallas, Tarrant, Collin, and Denton. Our project experience extends across Texas with work for state agencies like TxDOT and NTTA.
How does DAL-TECH ensure project quality?
We implement rigorous QA/QC processes with principal-in-charge oversight for all projects. Our team maintains TxDOT pre-certifications in 18 engineering categories and follows strict quality control protocols established since 1990.
Can DAL-TECH handle complex infrastructure projects?
Yes, we have extensive experience with complex projects including the Lake Tawakoni Raw Water Pipeline, President George Bush Turnpike extension, and Dallas Love Field Industrial Subdivision. Our team manages technical challenges while maintaining budget and schedule constraints.