Many of our projects require integrative thinking on ways to remove waste and add value, not only through creativity but also through practicality. We need partners who have the wherewithal to work with us in a very collaborative manner, to scenario plan and help not only document our designs but drive our designs. I have found Armstrong-Douglass to be as good as any partner. Their customer service approach, the understanding of our overall systems, and their overall responsiveness have been valuable to me in the two decades in which we have worked together.”
Fred Perpall

CEO, The BECK Group

Project Engineer

BS Architectural Eng. or Civil Eng.
I yr of exp. in structural analysis (reinforced concrete/structural timber/structural steel design), design calculation, and foundation design. Able to use EnerCALC, RAM Structural systems, AutoCA!L Revit, and RISA.
Job Loe: Dallas, TX. Send resume to Armstrong-Douglas Structural Engineers at 12655 N. Central Expwy Suite 720 Dallas, Texas 75234

Armstrong-Douglass Structural Engineers Joins Salas O’Brien

Armstrong-Douglass is excited to announce its merger with Salas O’Brien, effective May 16, 2022. This merger takes our talent, expertise, and service to even greater heights as we continue to partner with our many valued clients. The Armstrong-Douglass management team will remain unchanged, in keeping with Salas O’Brien’s mission to be “local everywhere, with international resources.” 


This project consisted of a patient tower to support neuroscience and women’s & children’s services.  The structure included reinforced concrete flat slab floors, columns and shear walls supported on a drilled pier foundation system.  The scope included two drop-off canopies and exterior improvements to the adjacent, existing bed tower.


This jewel in downtown Dallas includes renovations and additions to an existing 4-story + basement building.   The new program for the building consists of meat processing and a bakery at the basement level, a ground-floor restaurant, and office space above the ground floor.  We were able to determine that with moderate reinforcement, the existing structure could support a vertical addition of an office level at the existing roof level, gaining valuable leasable area for the Owner.   Additional design challenges include structural support of new roof-top mechanical equipment and new façade materials.


This project included a variety of functions, including a fitness center, auditorium, medical clinic and classrooms.  The structure consisted of a cast-in-place, post-tensioned slab and beam system supported on spread footings.

We engage in the communities that we help to build.

Armstrong-Douglass is committed to the communities that we find ourselves taking part in. Check out just some of the ways we stay involved by clicking on the left or right sides or click the button below to view a complete list of our community engagements.

We engage in the communities that we help to build.

Armstrong-Douglass has been helping to organize the local SEAoT Young Member monthly pickleball gatherings since the pandemic started. We had steady attendance and many people introduced pickleball to their friends and family after learning with us.

We engage in the communities that we help to build.

We’re proud to be one of the first signatories of the SEI – Structural Engineering Institute #SE2050 Commitment Program. We join a coalition of forward-looking firms committed to achieving net zero structural systems by 2050.
Our shared vision: that it will become standard practice for structural engineers to understand, reduce, and eliminate embodied carbon in projects.

Bonton Farms is an amazing resource for a marginalized southern Dallas community. Armstrong-Douglass Partners is pleased to assist with multiple pro-bono projects for this amazing organization!

We engage in the communities that we help to build.

Spark! is an indoor facility where children from 2nd grade to high school can explore and unleash their creativity. Constructed within a 2-story volume within a multi-story warehouse structure, the center includes catwalks, slides, climbing nets, crawl tubes and more, interwoven in a fascinating 3-dimensional volume.


Armstrong-Douglass is providing structural design and construction administration services for a 3-story, 110,000 sf emergency department addition to the Methodist Charlton Medical Center.  The building is engineered for a future vertical expansion of 3 levels.  Additional scope includes a new central utility plant.


This mixed-use project includes a 3 and 4-story multifamily complex totaling 350 units, divided among 3 buildings.  One of the apartment buildings wraps a 3-level parking garage.  At the front of the property, a post-tensioned concrete podium spans over retail spaces, and supports a fitness center and townhomes.  A steel-framed pedestrian bridge links the townhomes to the parking garage.


This project consists of a three (3) medical office buildings featuring sloped exterior walls and shifting geometries.

Our Philosphy

At Armstrong-Douglass Structural Engineers, we are dedicated partners to architects, private owners and developers, public entities and contractors. We believe that a successful project requires close collaboration, responsiveness and creativity. We strive to create simple solutions to complex design challenges, and our experience has proven that this approach produces structures that are highly coordinated and cost-effective.

About Us

We recognize the importance of budgets, schedules and teamwork, and we produce practical design solutions in a timely manner.  Our staff is friendly and responsive, and possesses a high level of creativity and technical expertise that our clients continually rely upon.  Our design experience includes reinforced concrete, post-tensioned concrete, structural steel, light-gauge steel, tilt-wall, concrete unit masonry, and wood framing.