Statement of Qualifications
ABOUT TTL
Delivering Integrated Infrastructure Solutions
Founded in 1964, TTL is an engineering design firm focused on delivering integrated infrastructure solutions for public and private clients.
WHO WE ARE
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, construction materials engineering and testing, and surveying, GIS, and mapping services.
TTL serves clients from 14 offices located in Alabama, Georgia, Tennessee, and Texas.
Services Markets
CIVIL ENGINEERING
TRANSPORTATION DESIGN & CEI
ENVIRONMENTAL CONSULTING CONSTRUCTION MATERIALS ENGINEERING & TESTING GEOTECHNICAL ENGINEERING
SURVEYING, GIS, & MAPPING
INSTITUTIONAL MUNICIPAL ENERGY COMMERCIAL INDUSTRIAL WATER RESOURCES TRANSPORTATION
Why Clients Return to TTL
We deliver engineering and scientific solutions tailored to each client, and we are passionate about solving challenges and helping our clients be successful. At our core, we are driven to serve our clients, our communities, and our people.
OUR TEAM IS SAFE. TTL has a 2024 EMR of 0.81. The safety of TTL’s team members is paramount on every project. We have effectively used our formal safety program, including weekly safety meetings, to continually improve our reliable safety record.
AT TTL, WE BUILD RELATIONSHIPS. We develop and maintain strong relationships, serving as advocates for our clients. We enter every working relationship as a long-term alliance and seek clients, teaming partners, and employees who believe the same.
WE DELIVER A POSITIVE CLIENT EXPERIENCE. We are proactive. We commit to being proactive in identifying our clients’ challenges. We communicate. We listen. We speak up. We follow up. We are responsive. We acknowledge and respond to our clients’ questions and requests.
OUR ACCOUNTABILITY DRIVES RESULTS. We continuously train our team, allowing them to gain valuable experience. We hold ourselves accountable for each client experience and we take that responsibility seriously.
WE TAKE CARE OF OUR COMMUNITY. We take seriously the responsibility that comes with being a good corporate citizen. We are dedicated to making a positive impact in the local communities where we live, work, and play.
OUR INTEGRITY DRIVES TRUST. We say what we mean and mean what we say. We and are driven to help our clients and our people succeed. We understand that trust must be built through integrity and is the commonality upon which every lasting relationship is built.
OUR SERVICE LINES
Civil Engineering
Clients value knowledge and experience that helps guide them to make good use of their resources. Our approach is to use energy and creativity to find workable solutions for their projects.
Most, if not all, that we do is used by the public in some way. It is all things that helps the community grow, improves the public’s life and their interaction within their city or town. That’s the rewarding part of doing it.”
- BRADLEY PORTER, PE CIVIL ENGINEERING PROJECT MANAGER
CIVIL ENGINEERING DESIGN SERVICES INCLUDE:
PLANNING SERVICES:
• Comprehensive land planning
• Concept plans
• Site analysis
• Yield studies
• Infrastructure investigation
• Entitlement strategies
• Transportation investigation and planning
• Bike and pedestrian planning
• Corridor planning analysis
• Urban planning
• Parks, recreation, and greenway planning
• Public and stakeholder meetings
• Planning workshops
• Grant writing assistance
• Campus planning
• Permit analysis and strategies
• Feasibility analysis
• GIS mapping and analysis
• Redevelopment studies and strategies
• Zoning analysis and assistance
STORMWATER:
• 401/404 permitting
• Low impact development (LID) design
• Water quality design
• Stormwater analysis
• Stormwater quantity/quality design
• Stormwater pollution prevention plans (SWPPP)
• Underground storage design
• Pervious pavement design
• Erosion & sediment control inspection
• Underground injection control permitting & investigations
SAFE DAMS PROGRAMS:
• Earthen embankment & concrete dam design
• Overflow & spillway design & inspections
• Regulatory assistance & permitting
• Earthen dam investigations
• Water withdrawal investigation
• Source water assessment
• Failure analysis
• Safety inspections
OUR SERVICE LINES
Transportation Design & CEI
Our transportation and construction engineering and inspection (CEI) team partners with clients to provide the necessary expertise for safe and reliable transportation infrastructure. Together, with our innovative delivery methods and program management expertise, we help clients navigate today’s turbulent financial markets and ever-changing regulations to reliably deliver complex projects quickly and efficiently.
Our plans and specifications are meticulously crafted by our design engineers while our CEI professionals diligently oversee construction. This seamless collaboration is the cornerstone to successful and sustainable transportation infrastructure development.
Our transportation and construction engineering inspection (CEI) team partners with clients to provide the necessary expertise for safe and reliable transportation infrastructure.
TRANSPORTATION DESIGN AND CEI SERVICES INCLUDE:
TRANSPORTATION PLANNING:
• Planning for all project phases
• Land use and master planning
• Feasibility and corridor studies
• Environmental studies
PROGRAM MANAGEMENT:
• Cost estimating
• Project controls
• Procurement support
• Risk management
• Pavement & asset management
• Grant services
• Design and construction oversight
CONSTRUCTION ENGINEERING AND INSPECTION:
• Construction management
• Project administration
• Construction inspections
• Materials testing
• Laboratory testing
ALTERNATIVE DELIVERY:
• Design build
• Progressive design build
• Public-private partnership
ENVIRONMENTAL:
• Public engagement
• NEPA permitting
• Special studies:
○ Ecology
○ Endangered and invasive species
○ Air quality
○ Noise
○ Wetland delineation
HIGHWAY DESIGN:
• Pavement analysis
• Drainage design and stormwater management
• Utility relocation
• Landscape and hardscape design
• Multi-modal design
• Bicycle and pedestrian facility design
• Innovative intersection design
• Bridge replacement design
• Widening and reconstruction design
• Operational and safety design
• Limited access facility design
• Interchange design
PROJECT TYPES:
• Innovative intersections
• Bridge replacements
• Interchanges
• Trails
• Bicycle and pedestrian facilities
• Roadway widenings
• Limited access facilities
• Airports
• Operational improvements
• Managed lanes systems
• Construction on-calls
CLIENTS:
• State DOTs
• Cities
• Counties
• Universities
• Community improvement districts
• Metropolitan planning organizations
• Private developers
• Transit authorities
OUR SERVICE LINES
Environmental Consulting
Our scientists and engineers are experienced in assisting our clients in finding solutions for today’s myriad environmental project challenges.
We make it our business to understand the ever-changing environmental regulations and how they will affect our clients’ interests.
ENVIRONMENTAL SERVICES INCLUDE:
DUE DILIGENCE:
• Phase I Environmental Site Assessments
• Phase II Environmental Site Assessments
INDUSTRIAL HYGIENE:
• Asbestos
• Lead-based paint
• Mold
• Noise
• Air
• Forensic assessments
COMPLIANCE:
• EPCRA reports
• SPCC plans
• SWPPPs
• Air/water permitting
• ISO 14001 audits
• MS4 permits
• MPDES/SID/UIC permitting
• General stormwater
NATURAL RESOURCES:
• NEPA documentation
• Wetland and stream delineations
• 401/404 permitting
• Cultural resources
• NHPA section 106 review
• Protected species and habitat assessments
GEOLOGICAL AND ENGINEERING ASSESSMENT:
• Mining
• Water resources (aquifer)
• Susceptibility studies
OUR SERVICE LINES
Geotechnical Engineering
Since our inception in 1964, TTL has provided geotechnical engineering services to school boards, universities, industries, contractors, developers, healthcare providers, private corporations, state highway departments and other state and federal agencies.
GEOTECHNICAL SERVICES. Technical experience is vital to the specialized geotechnical services we offer. TTL’s geotechnical professionals deliver years of experience that include diverse and challenging geotechnical projects. We assist our clients in implementing cost-effective quality assurance programs for construction and developing cost saving approaches to challenges posed by site conditions and geotechnical constraints.
“
We
take an idea that turns into lines on paper that then turns into a physical structure where people work, live, play, or whatever.
Our projects, they’re all integral to the way the world functions.”
- BRYAN WYSOCK, PE GEOTECHNICAL REGIONAL LEADER
GEOTECHNICAL SERVICES INCLUDE:
• Foundation analysis
• Settlement analysis of shallow and deep foundations
• Ground improvement systems analysis
• Deep foundation and load transfer platform analysis
• Crane pad bearing evaluation
• Design of reinforced and non-reinforced slopes
• Slope stability analysis
• Landslide repair design
• Dam inspections, safety studies, and design
• Sheet pile design/earth retention systems/mechanically stabilized earth walls
• Karst assessment
• Pavement evaluations
• Seismic consulting, including site-specific seismic studies
• Ground penetrating radar services
• On-site shear wave testing
• Seismic refraction testing
OTHER GEOTECHNICAL SERVICES INCLUDE:
• Geotechnical drilling
○ Hollow stem auger
○ Rotary wash
○ Wireline rock coring
• Geotechnical laboratory testing
OUR SERVICE LINES
Construction Materials Engineering & Testing
In addition to understanding our client’s objectives for each project, an important part of our business involves construction monitoring and materials testing. We are continually evaluating, monitoring, and testing to provide our clients with superior data and services.
Our laboratories in Decatur and Tuscaloosa, Alabama; Albany & Valdosta, Georgia; Nashville, Tennessee; and San Antonio, Texas are AASHTO: resources and CCRL accredited.
CONSTRUCTION MATERIALS ENGINEERING & TESTING SERVICES INCLUDE:
SOIL AND ROCK ANALYSES:
• Soil classification, proctor density, triaxial shear, consolidation, hydraulic conductivity
• Atterberg limits, soil porosity, specific gravity, California bearing ratio (CBR)
• Grain-size analysis and rock core compressive strength
CONCRETE ANALYSES:
• Mix design, slump, air content, unit weight, temperature
• Compressive strength of cast concrete cylinders and drilled core samples
• Floor flatness and levelness measurements
• Pavement evaluation
ASPHALT ANALYSES:
• Marshall density
• Asphalt Coring
• Extraction/gradation/AC content
• Mix properties
CONSTRUCTION QUALITY ASSURANCE FOR LANDFILLS AND COMBUSTION RESIDUALS :
• Compacted clay liner QA
• Geosynthetic liner installation QA (GPS tracking)
• Geosynthetic conformance testing
• Certification reporting and permitting
• Quality control management
NON-DESTRUCTIVE TESTING:
• ASNT NDT - Level I, II, III
• Window testing
• Bolted and welded connection inspection
• Ultrasonic testing (UT)
• Ultrasonic thickness testing (UTT)
• Phased array ultrasonic testing (PAUT)
• Magnetic particle testing (MT)
• Liquid dye penetrant testing (PT)
• Visual testing (VT)
• Vacuum leak testing
• Positive material identification (PMI)
• Portable hardness testing
• Corrosive mapping
• Leak testing (LT)
• Welder qualifications (PQR, WPS, WPQR)
• Coating inspection
• Ground penetrating radar
SPECIAL INSPECTIONS:
TTL personnel hold certifications from the International Code Council (ICC) and American Welding Society, having certifications in Soils Special Inspector, Reinforced Concrete Special Inspector, Structural Masonry Special Inspector, Structural Steel Bolting Special Inspector, Spray Applied Fireproofing Special Inspector, and Certified Welding Inspector.
Common special inspections performed in accordance with Chapter 17 of the International Building Code (IBC) include:
• Steel, concrete, masonry, wood construction
• Soils
• Driven deep foundations
• Cast-in-place deep foundations
• Deep foundation installation monitoring and load testing
• Helical pile foundations
• Special inspections for wind resistance
• Special inspections for seismic resistance
• Mechnical, electrical, and plumbing (MEP) inspections
• Mastic and intumescent fire-resistant coatings
• Exterior insulation and finish systems (EIFS)
• Fire penetration inspections
Surveying, GIS, & Mapping
TTL strives to be a good partner with our clients before they even break ground. We offer clients comprehensive survey and GIS capabilities including commercial/industrial site selection, demographic studies, general mapping, and a variety of other surveys and evaluations that provide our clients with base data for their projects.
TTL strives to be a good partner with our clients before they even break ground.
TTL offers UAS (Drone) capable LiDAR (light detection and ranging) remote scanning services. Utilizing a DJI Matrice M300 RTK UAS vehicle, equipped with the GeoCue True View 515 3D Imaging system. TTL can 3D scan large projects, up to 400 acres per day without battery recharging. The True View LiDAR and Camera system is capable of scanning and mapping projects of all types and sizes, both in the open and through vegetation, and achieve precision better than 5 cm. Paired with the True View EVO software, TTL can convert the raw LiDAR data and photogrammetry, to produce colorized and georeferenced 3D point clouds, 3D elevation models, and highly accurate aerial photography orthomosaics. Once processed, we can create 3D models for use in design in both AutoCAD and MicroStation, and generate accurate contour maps of the project.
TTL is licensed to survey in Alabama (CA-1142), Georgia (CA-1306), Kentucky (#998), Mississippi (CA-26605), Tennessee (#3003), and Texas (#10194612).
SURVEYING, GIS, & MAPPING SERVICES INCLUDE:
SURVEYING CAPABILITIES
• Horizontal and vertical control surveys
• Topographic mapping
• Static and real time GPS
• Planimetric surveys
• ALTA/title surveys
• Hydrographic surveys
• Centerline and route surveys
• Hazardous waste site surveys
• Utility surveys and mapping
• Quarry/surface mine mapping
• Quantity surveys
• As-built/construction record
• Boundary surveys
• Construction layout & staking
• Easement and right-of-way surveys
• Subdivision surveys
• Forensic data collection
• LiDAR mapping collection and validation
SURVEYING EQUIPMENT
• Static and real time GPS units
• Conventional total stations
• Robotic total stations
• Automatic levels/rods and tripods
• Data collectors
• Dedicated survey vehicles
• Trimble business center software
• Civil 3D CAD software
• Microstation with OpenRoads
• Leica Infinity Office Software
• Large Format Plotters
DRONE & LIDAR CAPABILITIES
DJI Matrice M300 RTK Drone
• Intelligent on-board flight systems
• On-board RTK GPS
• GPS, GLONASS, BeiDou, & Galileo
• 55 min max flight time
• 6 directional sensing and positioning
True View 515 3D Imaging System
• LiDAR & Imagery
• 20MP, RGB
• Scanning Field of View - 120°
• Camera Sensor – Dual 1” Mechanical shutter
• Hesai PandarXT-32 LiDAR Scanner
