Statement of Qualifications
ABOUT TTL
Delivering Integrated Infrastructure Solutions
WHO WE ARE
Founded in 1964, TTL is an engineering design firm focused on delivering integrated infrastructure solutions for public and private clients.
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
Founded in Tuscaloosa
Employees firm-wide
professionals
INSTITUTIONAL MUNICIPAL ENERGY COMMERCIAL INDUSTRIAL WATER RESOURCES
TRANSPORTATION
Why TTL
At our core, we are driven to serve our clients, our communities, and each other.
SAFETY FIRST: TTL’s EMR is consistently below the industry standard of 1.0, and the safety of our team members is paramount on every project. Our formal safety program, including weekly safety meetings, serves to continually improve our reliable safety record.
TRUSTWORTHY RELATIONSHIPS:
We strive to serve as advocates for our clients and consider every working relationship a long-term alliance.
POSITIVE EXPERIENCES: We believe in proactively communicating, listening, and speaking up when working to address our clients’ challenges, questions, and requests.
TEAM ACCOUNTABILITY: We understand that our value is in our staff and reputation. That’s why we hire experts and professionals who can provide reliable answers and solutions for our.
COMMUNITY VALUES: We believe in being a good corporate citizen and will forever remain dedicated to making a positive impact in the local communities where we live, work, and play.
INTEGRITY DRIVEN: We and are driven to help our clients succeed, and we understand that trust built through integrity is the common ground on which lasting relationships are built.
OUR SERVICE LINES
Civil Engineering
Clients value knowledge and experience that helps them maximize resources and sustainable solutions. Our approach uses passion and creativity to find workable solutions for their projects.
“
Most, if not all, that we do is used by the public in some way. We’re helping communities grow and improving qualities of life. That’s the rewarding part of what we do.”
- BRADLEY
PORTER, PE CIVIL ENGINEERING PROJECT MANAGER
Imperial Dental Clinic, Hendersonville, TN
River District Pedestrian Bridge, Tuscaloosa, AL
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
Project Shamrock, Huntsville, AL
OUR SERVICE LINES
Transportation Design & CEI
Our transportation and construction engineering and inspection (CEI) team partners with clients to provide safe and reliable transportation infrastructure, and we stand ready to help clients navigate today’s turbulent financial markets and ever-changing regulations to quickly and efficiently deliver complex projects.
Our transportation team provides high quality services to deliver safe and reliable transportation infrastructure for state departments of transportation and local communities throughout the Southeast.
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
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
• Roadway widenings
• Limited access facilities
• Operational improvements
• Managed lanes systems
• Construction on-calls
CLIENTS:
• State DOTs
• Cities
• Counties
• Universities
• Community improvement districts
• Metropolitan planning organizations
• Private developers
• Transit authorities
• Airport authorities
Edmonson Ferry Road Intersection, Clarksville, TN Madison Station Boulevard, Nashville, TN
Lurleen Wallace Boulevard, Tuscaloosa, AL
Environmental Consulting
Our scientists and engineers are experienced in assisting our clients in finding solutions for today’s myriad environmental project challenges.
Our environmental team consists of experts on the cutting edge of regulatory changes.
Tortuga Substation, Corpus Christi, TX
ENVIRONMENTAL SERVICES INCLUDE:
DUE DILIGENCE:
• Phase I Environmental Site Assessments
• Phase II Environmental Site Assessments
INDUSTRIAL HYGIENE:
• Forensic assessments
• Asbestos
• Lead-based paint
• Mold
• Noise
• Air
COMPLIANCE:
• EPCRA reports
• SPCC plans
• SWPPPs
• Air/water permitting
• ISO 14001 audits
• MS4 permits
• NPDES/SID/UIC permitting
• General stormwater
• Solid waste management, design, and permitting
GEOLOGICAL AND ENGINEERING ASSESSMENT:
• Mining
• Water resources (aquifer)
• Susceptibility studies
NATURAL RESOURCES:
• NEPA documentation
• Wetland and stream delineations
• Permitting
• Section 10 permits
• Section 408 permits
• 401/404 permitting
• Cultural resources
• NHPA section 106 review
• Protected species and habitat assessments
Neuhoff Mixed-Use Development, Nashville, TN Bat Capture and Handling Workshop, Mammoth Cave National Park, KY
OUR SERVICE LINES
Geotechnical Engineering
From subsurface explorations and geophysical surveys to foundation design and slope stability analyses, TTL provides a range of geotechnical engineering services to both public and private sector clients.
“
We take an idea that goes from lines on paper to physical structures where people work, live, and play. We’re proud our projects are integral to the way our world functions.”
- BRYAN WYSOCK, PE
GEOTECHNICAL REGIONAL LEADER
Young Women’s Leadership Academy, San Antonio, TX
SGMC Health Main Hospital, Valdosta, GA
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
Four Seasons Hotel, Nashville, TN
OUR SERVICE LINES
Construction Materials Engineering & Testing
Critical to understanding our client’s needs for a project is meticulously detailed construction monitoring and materials testing. Our team continually evaluates, monitors, and performs on-site tests 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 re:source 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:
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 fireresistant coatings
• Exterior insulation and finish systems (EIFS)
• Fire penetration inspections
The Fischer Center for Performing Arts, Nashville, TN
Golden Triangle Regional Airport, Lowndes County, MS Huntsville Fire Station 20, Huntsville, AL
Surveying, GIS, & Mapping
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 partners with clients before they even break ground.
DRG Warehouse, Spring Hill, TN
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
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
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
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
Nashville International Airport, Nashville, TN
