Delivering Transportation Solutions WHO WE ARE Founded in 1964, TTL is an engineering design firm focused on delivering integrated infrastructure solutions for public and private clients. From site and corridor selection to due diligence, design, and construction services, TTL is your trusted partner providing single-sourced custom solutions for complex infrastructure development. With more than 450 team members across the Southern United States, TTL provides a wide range of services including civil and geotechnical engineering; transportation design and CEI; environmental consulting and remediation; construction materials engineering and testing; and surveying, GIS, and mapping services.
Through a shared vision with our clients and team members, we are driven to build better communities through service with integrity and accountability. PEOPLE-DRIVEN CULTURE
TXDOT PREQUALIFICATIONS 1.8.1
Public Involvement
2.3.1
Wetland Delineation
2.4.1
Nationwide Permit
2.4.2
Clean Water Act §404 (Title 33, United States Code §1344) Permits (including mitigation and monitoring)
2.5.1
Geological Assessment for Edwards Aquifer Recharge Zone
A strong people-first culture of openness and mutual respect guides all of our relationships.
2.13.1
Hazardous Materials Initial Site Assessment
2.14.1
Environmental Documentation
INTEGRITY DRIVES TRUST
3.2.1
Route Studies and Schematic Design
4.2.1
Roadway Design
We say what we mean and mean what we say. We practice servant leadership, driven to help our clients, and our people, succeed.
ACCOUNTABILITY DRIVES RESULTS TTL’s commitment to safety is founded on our desire to serve our clients and our people.
TEXAS BY THE NUMBERS
197 73 TX Counties Worked in
7
Professional Engineers
14
Environmental Professionals
Texas Team Members
11
Years of Professional Service
5
Environmental TXDOT Projects
4.4.1
Freeway Interchanges
10.3.1
Bridge Hydraulic Design
11.4.1
Environmental Inspections
12.1.1
Asphaltic Concrete Production
12.1.2
Portland Cement Concrete
12.1.4
Asphaltic Concrete Placement
12.1.5
Portland Cement Concrete Placement
12.1.7
Embankment/Subgrade/Backfill/Base Placement
12.2.1
Concrete Plant Inspection and Testing
12.4.1
Pavement Design Services
14.1.1
Soil Exploration
14.2.1
Geotechnical Testing
14.3.1
Transportation Foundation Studies
14.4.1
Building Foundation Studies
14.5.1
Evaluation & Design of Geotechnical Related Structures
15.1.1
Right of Way Surveys
15.2.1
Design Survey
15.2.2
Construction Survey
15.3.2
Terrestrial Photogrammetry
15.3.3
Terrestrial LiDAR
15.3.4
Mobile LiDAR
15.3.5
Horizontal and Vertical Control
17.5.1
Civil Engineering
18.2.1
Subsurface Utility Engineering (Utility Engineering Investigation)
18.4.1
Utility Engineering