How We Work for Contractors:

CapEx Drainage TUNNEL Project

Stiver 2024 03 07T085019.121

Contractors, this is for you:

Stiver Engineering is a leading provider of civil engineering design services in Texas. We work for contractors to deliver quality construction projects to construction managers, owners and taxpayers.

Our team of design engineers are available to tackle diverse projects. For infrastructure improvements like the Austin CapEx Drainage Tunnel Project, Stiver assists with delegated design, tunneling design, shoring design, dewatering design and permanent structure design. We are committed to quality, safety and innovation.

We deliver tailored solutions for infrastructure development, structural design, and more. From concept to completion, trust Stiver Engineering for all your civil and structural engineering design needs.

Designer: Schnabel

Contractor: TBD, call Stiver for support services

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[713] 526-3478

I-35 Capital Express (CapEx)
Central Drainage Tunnel Project
in Austin, Texas

The I-35 Capital Express (CapEx) Central project in Austin, Texas, under development by the Texas Department of Transportation (TxDOT), involves improvements to 8 miles of this vital corridor serving the state’s capital.

In order for the project to be realized, the infrastructure must be designed and built to support the finished facility. One of the first steps is the construction of the I-35 CapEx Drainage Tunnel project is underneath the highway. To accommodate a project of this size, the drainage tunnels are designed to be 22-ft internal diameter and stretch approximately 6.5 miles, one leg of 3 miles and one leg of 3.5 miles.

Stiver Engineering’s professionals are veterans of tunnel design. We’ve engineered tunnels and access shafts for major projects throughout North America. We can help provide safe and effective designs for your next complex underground project.

Our Expertise

Tunneling | Shoring | Dewatering

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Leading Civil Engineers in Engineering Design and Construction

At Stiver Engineering, we excel in transforming construction engineering concepts into practical, efficient designs. Our civil engineering company approach integrates cutting-edge techniques in construction engineering design, ensuring every project adheres to the highest standards and optimally utilizes the construction site’s potential.

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Why Choose Stiver Engineering for Your Tunneling and Engineering Needs

  • Expertise in Diverse Construction Projects: Our portfolio spans a broad array of construction engineering projects, demonstrating our versatility and deep industry knowledge.
  • Tunneling Design: Our cutting-edge tunnel design engineer services, covering a wide spectrum from storm sewer tunnel design to wastewater tunnel design to water supply tunnel design.
  • Construction Design: Our unmatched expertise in structural design and civil engineering construction makes us an invaluable partner to our clients. 
  • Dewatering Design: We understand that effective dewatering system design is crucial for the stability and success of underground construction projects.
  • Permanent Structure Design: From designing resilient bridges and bulkheads to efficient pump stations and intricate tunnels, we handle both above-ground and below-ground projects with unmatched proficiency.
  • Client-Focused Approach: We place our clients at the forefront, ensuring a seamless process in construction engineering design from initial concept to project completion.
    Innovation in Shaft Design
  • Innovative Engineering Solutions: Utilizing the most advanced methodologies in construction engineering, we deliver innovative, custom solutions tailored to each project’s unique requirements.

Contact Us for Advanced Construction Engineering Design Services

Whether you need innovative design for construction projects, expert engineering for urban developments, or strategic planning for commercial ventures, Stiver Engineering is your trusted engineering design firm. Contact us today to embark on your construction engineering project with a team committed to excellence at every stage.

Get Started
[713] 526-3478

Frequently Asked Questions About Hiring Civil Design Engineers

Our diverse urban and industrial landscape presents unique civil engineering challenges, from managing waterways to supporting expansive infrastructure growth.

We continuously update our practices and designs to meet the dynamic environmental conditions and regulatory changes in Texas.

Common challenges include flood control, soil stability, and designing structures to withstand Texas climate and geographical conditions.

We play a key role in developing and improving Houston’s infrastructure through innovative design and engineering solutions that cater to the city’s unique needs.

We stay abreast of the latest building codes and regulations, ensuring all our designs and projects comply fully with local standards.

Yes, our team is equipped to manage multi-disciplinary projects, integrating various aspects of civil engineering to deliver comprehensive solutions.

We employ advanced hydrological modeling and design innovative drainage and flood control systems to effectively manage water in the unique landscape.

We provide a range of services including land development, structural design, and utility engineering to support the growing commercial and industrial sectors.