TxDOT Expressway
Search:
   Home   |    Contact Us   |    Tools & Plug-Ins  

Active Precertified Firms - Sorted by Firm Name

Active Precertified Firm Page Links ( Updated August 14, 2020 at 9:00:04 P.M. )
a&p--avil azte--carr cdm--data datu--fehr fehr--good gord--ibar
icf--kena kevi--maes mald--odom ojd--rio rios--sout sowi--the
the--west west--360

Renewal Status JUNE 8, 2020 ( ACTIVE )
Firm Name DATUM ENGINEERS, INCORPORATED
Mailing Address 6516 FOREST PARK ROAD
DALLAS, TX 75235
Firm Phone (214)358-0174

Areas of Certification
17.1.1 Structural Engineering



Renewal Status AUGUST 11, 2020 ( ACTIVE )
Firm Name DAVCAR ENGINEERING
Mailing Address 1010 LAND CREEK COVE, SUITE 200
AUSTIN, TX 78746
Firm Phone (512)328-4428

Areas of Certification
2.5.1 Geological Assessment for Edwards Aquifer Recharge Zone
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
9.1.1 Bicycle And Pedestrian Facility Development
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design



Renewal Status MARCH 3, 2020 ( ACTIVE )
Firm Name DAVID EVANS AND ASSOCIATES, INC.
Mailing Address 2100 SW RIVER PARKWAY, SUITE 100
PORTLAND, OR 97201
Firm Phone (425)519-6502

Areas of Certification
1.3.1 Subarea/Corridor Planning
1.4.1 Land Planning/Engineering
1.5.1 Feasibility Studies
4.2.1 Roadway Design
4.4.1 Freeway Interchanges
4.5.1 Constructability Review
5.2.1 Bridge Design
5.5.1 Bridge & Non-Bridge Class Culvert and Inlet Design
6.1.1 Routine Bridge Inspection Team Leader
6.2.1 Complex Bridge Inspection Team Leader
7.1.1 Traffic Engineering Studies
7.3.1 Traffic Signal Timing
7.5.1 Intelligent Transportation Systems
8.1.1 Signing, Pavement Marking, And Channelization
8.3.1 Signalization
8.4.1 ITS Control Systems Analysis, Design & Implementation
8.6.1 Rail-Highway Design
11.1.1 Roadway Construction Management And Inspection
11.3.1 Construction Superintendent
11.5.1 Construction Scheduling Project Manager
17.5.1 Civil Engineering



Renewal Status JANUARY 21, 2020 ( ACTIVE )
Firm Name DECON LLC
Mailing Address 2180 NORTH LOOP WEST STE 221
HOUSTON, TX 77018
Firm Phone (832)917-0912

Areas of Certification
4.2.1 Roadway Design
5.2.1 Bridge Design
5.3.1 Multi-Level Interchange Design
6.1.1 Routine Bridge Inspection Team Leader
6.2.1 Complex Bridge Inspection Team Leader
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design
10.3.1 Bridge Hydraulic Design
14.3.1 Transportation Foundation Studies



Renewal Status MARCH 19, 2020 ( ACTIVE )
Firm Name DESCO ENVIRONMENTAL CONSULTANTS, LP
Mailing Address PO BOX 1490
MAGNOLIA, TX 77353
Firm Phone (281)252-9799

Areas of Certification
2.3.1 Wetland Delineation
2.4.1 Nationwide Permit
2.4.2 Clean Water Act Sec. 404 Permits
2.4.3 U.S. Coast G. & U.S. Army Corps of Engr. Permits
2.6.2 Impact Evaluation Assessments
2.12.1 Socio-Economic And Environmental Justice Analyses
2.13.1 Hazardous Materials Initial Site Assessment



Renewal Status AUGUST 13, 2020 ( ACTIVE )
Firm Name DESHAZO GROUP, INC.
Mailing Address 400 SOUTH HOUSTON, SUITE 330
DALLAS, TX 75202
Firm Phone (214)748-6740

Areas of Certification
1.1.1 Policy Planning
1.2.1 Systems Planning
1.3.1 Subarea/Corridor Planning
1.4.1 Land Planning/Engineering
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
7.1.1 Traffic Engineering Studies
7.3.1 Traffic Signal Timing
7.4.1 Traffic Control Systems Analysis, Design And Implementation
8.1.1 Signing, Pavement Marking, And Channelization
8.6.1 Rail-Highway Design



Renewal Status JANUARY 16, 2020 ( ACTIVE )
Firm Name DESIGN CONSULTING ENGINEERS, INC.
Mailing Address 3841 W. DEVON AVE.
CHICAGO, IL 60659
Firm Phone (773)681-0541

Areas of Certification
1.4.1 Land Planning/Engineering
1.5.1 Feasibility Studies
2.13.1 Hazardous Materials Initial Site Assessment
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
6.1.1 Routine Bridge Inspection Team Leader
11.1.1 Roadway Construction Management And Inspection
11.2.1 Bridge Construction Management And Inspection
12.1.1 Asphaltic Concrete Production
12.1.2 Portland Cement Concrete
12.2.1 Plant Inspection And Testing



Renewal Status MARCH 18, 2020 ( ACTIVE )
Firm Name DFW CONSULTING GROUP, INC.
Mailing Address 1616 CORPORATE CT, SUITE 100
IRVING, TX 75038
Firm Phone (972)827-2601

Areas of Certification
17.2.1 Mechanical Engineering
17.3.1 Plumbing Engineering
17.4.1 Electrical Engineering



Renewal Status MARCH 18, 2020 ( ACTIVE )
Firm Name DIAL DEVELOPMENT SERVICES, LTD.
Mailing Address P.O. BOX 608
DEL VALLE, TX 78617
Firm Phone (512)589-3105

Areas of Certification
11.3.1 Construction Superintendent
11.4.1 Environmental Inspections
11.6.1 Construction Schedule Support-General
12.1.4 Asphaltic Concrete Placement
18.3.1 Utility Adjustment Coordination
18.6.1 Utility Management & Coordination Oversight



Renewal Status JANUARY 27, 2020 ( ACTIVE )
Firm Name DIAMOND SURVEYING, INC.
Mailing Address 116 SKYLINE ROAD
GEORGETOWN, TX 78628
Firm Phone (512)931-3100

Areas of Certification
15.1.1 Right of Way Surveys
15.2.1 Design Survey
15.2.2 Construction Survey
15.3.5 Horizontal and Vertical Control



Renewal Status MARCH 26, 2020 ( ACTIVE )
Firm Name DIKITA ENTERPRISES, INC.
Mailing Address 1420 W MOCKINGBIRD LN, SUITE 600
DALLAS, TX 75247
Firm Phone (214)634-8844

Areas of Certification
1.8.1 Public Involvement
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
8.1.1 Signing, Pavement Marking, And Channelization
8.3.1 Signalization
8.6.1 Rail-Highway Design
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design
10.3.1 Bridge Hydraulic Design
11.1.1 Roadway Construction Management And Inspection
11.2.1 Bridge Construction Management And Inspection
17.5.1 Civil Engineering
18.3.1 Utility Adjustment Coordination
18.4.1 Utility Engineering



Renewal Status FEBRUARY 17, 2020 ( ACTIVE )
Firm Name DISHA SERVICES INC.
Mailing Address 2809 MILLER RANCH ROAD, #417
PEARLAND, TX 77584
Firm Phone (832)687-9551

Areas of Certification
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
7.4.1 Traffic Control Systems Analysis, Design And Implementation
8.1.1 Signing, Pavement Marking, And Channelization
8.6.1 Rail-Highway Design
18.4.1 Utility Engineering



Renewal Status MARCH 27, 2020 ( ACTIVE )
Firm Name DKS ASSOCIATES
Mailing Address 305 CAMP CRAFT ROAD, SUITE 525
WEST LAKE HILLS, TX 78746
Firm Phone (512)329-2723

Areas of Certification
1.1.1 Policy Planning
1.2.1 Systems Planning
1.3.1 Subarea/Corridor Planning
1.4.1 Land Planning/Engineering
1.5.1 Feasibility Studies
1.6.1 Major Investment Studies
1.7.1 Traffic Demand Modeling
3.2.1 Route Studies & Schematic Design
7.1.1 Traffic Engineering Studies
7.3.1 Traffic Signal Timing
7.4.1 Traffic Control Systems Analysis, Design And Implementation
7.5.1 Intelligent Transportation Systems
8.1.1 Signing, Pavement Marking, And Channelization
8.2.1 Illumination
8.3.1 Signalization
8.4.1 ITS Control Systems Analysis, Design & Implementation
8.6.1 Rail-Highway Design



Renewal Status JANUARY 3, 2020 ( ACTIVE )
Firm Name DON DURDEN, INC.
Mailing Address 11550 IH 10 WEST STE 395
SAN ANTONIO, TX 78230
Firm Phone (210)641-9999

Areas of Certification
1.1.1 Policy Planning
1.2.1 Systems Planning
1.3.1 Subarea/Corridor Planning
1.4.1 Land Planning/Engineering
1.5.1 Feasibility Studies
2.4.1 Nationwide Permit
2.4.2 Clean Water Act Sec. 404 Permits
2.5.1 Geological Assessment for Edwards Aquifer Recharge Zone
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
4.5.1 Constructability Review
5.5.1 Bridge & Non-Bridge Class Culvert and Inlet Design
7.1.1 Traffic Engineering Studies
7.3.1 Traffic Signal Timing
7.4.1 Traffic Control Systems Analysis, Design And Implementation
8.1.1 Signing, Pavement Marking, And Channelization
8.3.1 Signalization
9.1.1 Bicycle And Pedestrian Facility Development
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design
10.3.1 Bridge Hydraulic Design
10.5.1 Bridge Scour Evaluations And Analysis
10.8.1 FEMA Regulations and Permits
11.1.1 Roadway Construction Management And Inspection
11.2.1 Bridge Construction Management And Inspection
11.3.1 Construction Superintendent
11.4.1 Environmental Inspections
11.6.1 Construction Schedule Support-General
11.7.1 Construct. Schedule Support-Sched of Roadway Design
12.1.3 Materials Engineering
12.2.1 Plant Inspection And Testing
14.1.1 Soil Exploration
14.2.1 Geotechnical Testing
14.3.1 Transportation Foundation Studies
15.1.1 Right of Way Surveys
15.2.1 Design Survey
15.2.2 Construction Survey
15.3.5 Horizontal and Vertical Control
17.5.1 Civil Engineering
18.2.1 Subsurface Utility Engineering
18.3.1 Utility Adjustment Coordination
18.4.1 Utility Engineering
18.5.1 Utility Construction Management and Verification
18.6.1 Utility Management & Coordination Oversight



Renewal Status JANUARY 17, 2020 ( ACTIVE )
Firm Name DONALD L. TOWLES, P.E.
Mailing Address 1903 TOSCA CV
CEDAR PARK, TX 78613
Firm Phone (512)828-6356

Areas of Certification
6.1.1 Routine Bridge Inspection Team Leader



Renewal Status FEBRUARY 19, 2020 ( ACTIVE )
Firm Name DOUCET & ASSOCIATES, INC.
Mailing Address 7401 B WEST HIGHWAY 71, SUITE 160
AUSTIN, TX 78735
Firm Phone (512)583-2600

Areas of Certification
1.1.1 Policy Planning
1.2.1 Systems Planning
1.3.1 Subarea/Corridor Planning
1.4.1 Land Planning/Engineering
1.5.1 Feasibility Studies
1.6.1 Major Investment Studies
2.3.1 Wetland Delineation
2.4.1 Nationwide Permit
2.4.2 Clean Water Act Sec. 404 Permits
2.5.1 Geological Assessment for Edwards Aquifer Recharge Zone
2.12.1 Socio-Economic And Environmental Justice Analyses
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
4.4.1 Freeway Interchanges
7.1.1 Traffic Engineering Studies
7.3.1 Traffic Signal Timing
7.4.1 Traffic Control Systems Analysis, Design And Implementation
7.5.1 Intelligent Transportation Systems
8.1.1 Signing, Pavement Marking, And Channelization
8.2.1 Illumination
8.3.1 Signalization
8.4.1 ITS Control Systems Analysis, Design & Implementation
8.6.1 Rail-Highway Design
9.1.1 Bicycle And Pedestrian Facility Development
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design
10.3.1 Bridge Hydraulic Design
10.4.1 Storm Water Pump Station-Hydraulic Design
10.7.1 Riverine Hydraulic Design
10.8.1 FEMA Regulations and Permits
11.1.1 Roadway Construction Management And Inspection
15.1.1 Right of Way Surveys
15.2.1 Design Survey
15.2.2 Construction Survey
15.3.3 Terrestrial LIDAR
15.3.4 Mobile and Airborne LiDAR
15.3.5 Horizontal and Vertical Control
17.5.1 Civil Engineering
18.3.1 Utility Adjustment Coordination
18.4.1 Utility Engineering



Renewal Status JANUARY 3, 2020 ( ACTIVE )
Firm Name DOUGHERTY ENGINEERING GROUP, PLLC
Mailing Address 11550 W INTERSTATE 10, SUITE 175
SAN ANTONIO, TX 78230
Firm Phone (210)291-8453

Areas of Certification
4.2.1 Roadway Design
7.1.1 Traffic Engineering Studies
7.3.1 Traffic Signal Timing
7.4.1 Traffic Control Systems Analysis, Design And Implementation
7.5.1 Intelligent Transportation Systems
8.1.1 Signing, Pavement Marking, And Channelization
8.2.1 Illumination
8.3.1 Signalization
8.4.1 ITS Control Systems Analysis, Design & Implementation
8.6.1 Rail-Highway Design
11.1.1 Roadway Construction Management And Inspection



Renewal Status FEBRUARY 25, 2020 ( ACTIVE )
Firm Name DULLES GEOTECHNICAL AND MATERIAL TESTING SERVICES, INC.
Mailing Address 14155 SULLYFIELD CIRCLE SUITE H
CHANTILLY, VA 20151
Firm Phone (703)999-3207

Areas of Certification
12.1.2 Portland Cement Concrete



Renewal Status JANUARY 16, 2020 ( ACTIVE )
Firm Name DUNAWAY ASSOCIATES, L.P.
Mailing Address 550 BAILEY AVENUE, SUITE 400
FORT WORTH, TX 76107
Firm Phone (817)335-1121

Areas of Certification
1.4.1 Land Planning/Engineering
1.5.1 Feasibility Studies
1.6.1 Major Investment Studies
2.3.1 Wetland Delineation
2.4.1 Nationwide Permit
2.4.2 Clean Water Act Sec. 404 Permits
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
4.4.1 Freeway Interchanges
7.1.1 Traffic Engineering Studies
7.3.1 Traffic Signal Timing
7.5.1 Intelligent Transportation Systems
8.1.1 Signing, Pavement Marking, And Channelization
8.3.1 Signalization
9.1.1 Bicycle And Pedestrian Facility Development
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design
10.3.1 Bridge Hydraulic Design
10.5.1 Bridge Scour Evaluations And Analysis
15.1.1 Right of Way Surveys
15.2.1 Design Survey
15.2.2 Construction Survey
15.3.5 Horizontal and Vertical Control



Renewal Status APRIL 14, 2020 ( ACTIVE )
Firm Name E.L. ROBINSON ENGINEERING OF OHIO CO.
Mailing Address 1801 WATERMARK DRIVE, SUITE 310
COLUMBUS, OH 43215
Firm Phone (614)586-0642

Areas of Certification
5.2.1 Bridge Design



Renewal Status JANUARY 31, 2020 ( ACTIVE )
Firm Name EARTH ENGINEERING, INC.
Mailing Address 4877 LANGFIELD ROAD
HOUSTON, TX 77040
Firm Phone (713)681-5311

Areas of Certification
2.13.1 Hazardous Materials Initial Site Assessment
12.1.2 Portland Cement Concrete
12.1.4 Asphaltic Concrete Placement
12.1.5 Portland Cement Concrete Placement
12.1.6 Embankment/Subgrade/Backfill/Base Production
12.1.7 Embankment/Subgrade/Backfill/Base Placement
14.1.1 Soil Exploration
14.2.1 Geotechnical Testing



Renewal Status JANUARY 27, 2020 ( ACTIVE )
Firm Name EAST TEXAS TESTING LABORATORY, INC.
Mailing Address 1717 EAST ERWIN
TYLER, TX 75702
Firm Phone (903)595-4421

Areas of Certification
2.13.1 Hazardous Materials Initial Site Assessment
11.4.1 Environmental Inspections
12.1.1 Asphaltic Concrete Production
12.1.2 Portland Cement Concrete
12.1.3 Materials Engineering
12.1.4 Asphaltic Concrete Placement
12.1.5 Portland Cement Concrete Placement
12.1.6 Embankment/Subgrade/Backfill/Base Production
12.1.7 Embankment/Subgrade/Backfill/Base Placement
12.2.1 Plant Inspection And Testing
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



Renewal Status JANUARY 15, 2020 ( ACTIVE )
Firm Name ECKERMANN ENGINEERING, INC.
Mailing Address PO BOX 388
LAMPASAS, TX 76550
Firm Phone (512)556-8160

Areas of Certification
4.2.1 Roadway Design
7.1.1 Traffic Engineering Studies
8.1.1 Signing, Pavement Marking, And Channelization
8.3.1 Signalization
9.1.1 Bicycle And Pedestrian Facility Development
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design
17.5.1 Civil Engineering



Renewal Status JANUARY 17, 2020 ( ACTIVE )
Firm Name ECM CONSULTANTS OF TEXAS, LLC
Mailing Address 222 PENNBRIGHT DR., SUITE 110
HOUSTON, TX 77090
Firm Phone (504)885-4080

Areas of Certification
4.2.1 Roadway Design
5.2.1 Bridge Design
6.1.1 Routine Bridge Inspection Team Leader
8.1.1 Signing, Pavement Marking, And Channelization
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design
10.3.1 Bridge Hydraulic Design
10.4.1 Storm Water Pump Station-Hydraulic Design
10.4.3 Pump Stations-Structures
11.1.1 Roadway Construction Management And Inspection
11.2.1 Bridge Construction Management And Inspection



Renewal Status FEBRUARY 14, 2020 ( ACTIVE )
Firm Name ECM INTERNATIONAL, INC.
Mailing Address 404 EXECUTIVE CENTER BLVD.
EL PASO, TX 79902
Firm Phone (915)351-1900

Areas of Certification
1.8.1 Public Involvement
4.2.1 Roadway Design
4.5.1 Constructability Review
8.1.1 Signing, Pavement Marking, And Channelization
9.1.1 Bicycle And Pedestrian Facility Development
11.1.1 Roadway Construction Management And Inspection
11.2.1 Bridge Construction Management And Inspection
11.3.1 Construction Superintendent
11.4.1 Environmental Inspections
11.5.1 Construction Scheduling Project Manager
11.6.1 Construction Schedule Support-General
11.8.1 Construct Schedule Support-Sched Bridge & Interchange Proj
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
17.5.1 Civil Engineering
18.2.1 Subsurface Utility Engineering
18.3.1 Utility Adjustment Coordination
18.5.1 Utility Construction Management and Verification
18.6.1 Utility Management & Coordination Oversight



Renewal Status FEBRUARY 21, 2020 ( ACTIVE )
Firm Name ECONOLITE SYSTEMS, INC.
Mailing Address 1250
N. TUSTIN AVE., CA 92807
Firm Phone (714)630-3700

Areas of Certification
1.1.1 Policy Planning
1.2.1 Systems Planning
1.3.1 Subarea/Corridor Planning
1.4.1 Land Planning/Engineering
1.5.1 Feasibility Studies
1.6.1 Major Investment Studies
4.2.1 Roadway Design
7.1.1 Traffic Engineering Studies
7.3.1 Traffic Signal Timing
7.4.1 Traffic Control Systems Analysis, Design And Implementation
7.5.1 Intelligent Transportation Systems
8.1.1 Signing, Pavement Marking, And Channelization
8.3.1 Signalization
8.4.1 ITS Control Systems Analysis, Design & Implementation
9.1.1 Bicycle And Pedestrian Facility Development



Renewal Status JANUARY 16, 2020 ( ACTIVE )
Firm Name ECONOMIC & PLANNING SYSTEMS, INC.
Mailing Address ONE KAISER PLAZA, SUITE 1410
OAKLAND, CA 94612
Firm Phone (510)841-9190

Areas of Certification
2.12.1 Socio-Economic And Environmental Justice Analyses



Renewal Status MARCH 2, 2020 ( ACTIVE )
Firm Name ECOSYSTEM PLANNING AND RESTORATION, LLC
Mailing Address 17575 NORTH ELDRIDGE PARKWAY, BLDG C
TOMBALL, TX 77377
Firm Phone (832)257-4452

Areas of Certification
1.8.1 Public Involvement
2.1.1 Traffic Noise Analysis
2.2.1 Air Quality Analysis
2.3.1 Wetland Delineation
2.3.2 Conditional/Functional Assessment
2.4.1 Nationwide Permit
2.4.2 Clean Water Act Sec. 404 Permits
2.4.3 U.S. Coast G. & U.S. Army Corps of Engr. Permits
2.6.2 Impact Evaluation Assessments
2.12.1 Socio-Economic And Environmental Justice Analyses
2.13.1 Hazardous Materials Initial Site Assessment
2.14.1 Environmental Document Preparation
10.1.1 Hydrologic Studies



Renewal Status MAY 12, 2020 ( ACTIVE )
Firm Name ECS SOUTHWEST, LLP
Mailing Address 14050 SUMMIT DR #101
AUSTIN, TX 78728
Firm Phone (512)837-8005

Areas of Certification
11.1.1 Roadway Construction Management And Inspection
12.1.2 Portland Cement Concrete
12.2.1 Plant Inspection And Testing
14.1.1 Soil Exploration
14.2.1 Geotechnical Testing
14.3.1 Transportation Foundation Studies
14.4.1 Building Foundation Studies



Renewal Status MARCH 31, 2020 ( ACTIVE )
Firm Name EDGE ENGINEEERING, PLLC
Mailing Address 4404 E HOVE LOOP
AUSTIN, TX 78749
Firm Phone (512)560-6454

Areas of Certification
2.4.1 Nationwide Permit
2.4.2 Clean Water Act Sec. 404 Permits
4.2.1 Roadway Design
8.1.1 Signing, Pavement Marking, And Channelization
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design
10.3.1 Bridge Hydraulic Design
10.5.1 Bridge Scour Evaluations And Analysis
10.8.1 FEMA Regulations and Permits
17.5.1 Civil Engineering



Renewal Status AUGUST 4, 2020 ( ACTIVE )
Firm Name EDGE ENGINEERING AND SCIENCE, LLC
Mailing Address 16360 PARK TEN PLACE, SUITE 300
HOUSTON, TX 77084
Firm Phone (281)578-6103

Areas of Certification
2.6.2 Impact Evaluation Assessments



Renewal Status MARCH 30, 2020 ( ACTIVE )
Firm Name EDMINSTER, HINSHAW, RUSS AND ASSOCIATES, INC.
Mailing Address 10011 MEADOWGLEN LN.
HOUSTON, TX 77042
Firm Phone (713)784-4500

Areas of Certification
1.3.1 Subarea/Corridor Planning
1.4.1 Land Planning/Engineering
1.5.1 Feasibility Studies
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
5.2.1 Bridge Design
7.1.1 Traffic Engineering Studies
7.3.1 Traffic Signal Timing
7.4.1 Traffic Control Systems Analysis, Design And Implementation
7.5.1 Intelligent Transportation Systems
8.1.1 Signing, Pavement Marking, And Channelization
8.2.1 Illumination
8.3.1 Signalization
8.4.1 ITS Control Systems Analysis, Design & Implementation
8.6.1 Rail-Highway Design
9.1.1 Bicycle And Pedestrian Facility Development
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design
10.3.1 Bridge Hydraulic Design
10.5.1 Bridge Scour Evaluations And Analysis
15.1.1 Right of Way Surveys
15.2.1 Design Survey
15.2.2 Construction Survey
15.3.5 Horizontal and Vertical Control



Renewal Status MARCH 10, 2020 ( ACTIVE )
Firm Name EDUARDO CASTILLO ENGINEERING & CONSTRUCTION
Mailing Address 322 YALE AVE
SAN ANTONIO, TX 78201
Firm Phone (210)913-2469

Areas of Certification
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
5.2.1 Bridge Design
8.1.1 Signing, Pavement Marking, And Channelization
9.1.1 Bicycle And Pedestrian Facility Development
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design
10.3.1 Bridge Hydraulic Design
10.5.1 Bridge Scour Evaluations And Analysis
11.1.1 Roadway Construction Management And Inspection



Renewal Status MARCH 3, 2020 ( ACTIVE )
Firm Name EDWARDS SURVEYING, L.L.C.
Mailing Address 208 WEST WALNUT STREET
DECATUR, TX 76234
Firm Phone (940)627-2961

Areas of Certification
15.1.1 Right of Way Surveys
15.2.1 Design Survey
15.2.2 Construction Survey
15.3.5 Horizontal and Vertical Control
15.5.1 State Land Surveying



Renewal Status APRIL 22, 2020 ( ACTIVE )
Firm Name EIC SURVEYING CO
Mailing Address 12345 JONES RD. STE 270
HOUSTON, TX 77070
Firm Phone (281)955-2772

Areas of Certification
15.1.1 Right of Way Surveys
15.2.1 Design Survey
15.2.2 Construction Survey



Renewal Status FEBRUARY 19, 2020 ( ACTIVE )
Firm Name EISMAN & RUSSO, INC.
Mailing Address 6455 POWERS AVENUE
JACKSONVILLE, FL 32217
Firm Phone (904)733-1478

Areas of Certification
11.1.1 Roadway Construction Management And Inspection
11.2.1 Bridge Construction Management And Inspection



Renewal Status JANUARY 16, 2020 ( ACTIVE )
Firm Name EJES INCORPORATED
Mailing Address 12801 N. CENTRAL EXPRESSWAY, SUITE 700
DALLAS, TX 75243
Firm Phone (214)343-1210

Areas of Certification
1.3.1 Subarea/Corridor Planning
1.4.1 Land Planning/Engineering
1.5.1 Feasibility Studies
1.6.1 Major Investment Studies
2.1.1 Traffic Noise Analysis
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
4.4.1 Freeway Interchanges
5.2.1 Bridge Design
5.3.1 Multi-Level Interchange Design
6.1.1 Routine Bridge Inspection Team Leader
7.1.1 Traffic Engineering Studies
7.3.1 Traffic Signal Timing
8.1.1 Signing, Pavement Marking, And Channelization
8.3.1 Signalization
9.1.1 Bicycle And Pedestrian Facility Development
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design
10.3.1 Bridge Hydraulic Design
10.5.1 Bridge Scour Evaluations And Analysis
12.2.1 Plant Inspection And Testing



Renewal Status JANUARY 7, 2020 ( ACTIVE )
Firm Name ENCOMPASS SERVICES, LLC
Mailing Address 14800 ST. MARY'S LANE, STE 230
HOUSTON, TX 77079
Firm Phone (281)835-4024

Areas of Certification
15.1.1 Right of Way Surveys
15.2.1 Design Survey
15.2.2 Construction Survey
15.3.3 Terrestrial LIDAR
15.3.5 Horizontal and Vertical Control



Renewal Status FEBRUARY 7, 2020 ( ACTIVE )
Firm Name ENCOTECH ENGINEERING CONSULTANTS, INC.
Mailing Address 8500 BLUFFSTONE COVE, SUITE B-103
AUSTIN, TX 78759
Firm Phone (512)338-1101

Areas of Certification
5.2.1 Bridge Design
8.2.1 Illumination
9.1.1 Bicycle And Pedestrian Facility Development
10.4.2 Pump Stations-Electrical
10.4.3 Pump Stations-Structures
14.3.1 Transportation Foundation Studies
14.4.1 Building Foundation Studies
17.1.1 Structural Engineering
17.2.1 Mechanical Engineering
17.3.1 Plumbing Engineering
17.4.1 Electrical Engineering



Renewal Status APRIL 8, 2020 ( ACTIVE )
Firm Name ENGINEERING OPERATIONS LLC
Mailing Address 5575 S. SYCAMORE STREET, STE #235
LITTLETON, CO 80210
Firm Phone (303)835-1029

Areas of Certification
6.1.1 Routine Bridge Inspection Team Leader
6.1.2 Routine Bridge Inspection Project Manager
6.3.1 Tunnel Inspection Team Leader
6.4.1 Underwater Bridge Inspection Team Leader



Renewal Status AUGUST 1, 2020 ( ACTIVE )
Firm Name ENGLE SURVEYING INCORPORATED
Mailing Address P.O. BOX 14604
HUMBLE, TX 77347-4604
Firm Phone (281)639-5015

Areas of Certification
15.1.1 Right of Way Surveys
15.2.1 Design Survey
15.2.2 Construction Survey
15.3.5 Horizontal and Vertical Control
15.5.1 State Land Surveying



Renewal Status JANUARY 31, 2020 ( ACTIVE )
Firm Name ENGLISH+ASSOCIATES ARCHITECTS, INC.
Mailing Address 1919 DECATUR
HOUSTON, TX 77007
Firm Phone (713)850-0400

Areas of Certification
16.1.1 Architecture



Renewal Status MARCH 27, 2020 ( ACTIVE )
Firm Name ENPROTEC/ HIBBS & TODD, INC.
Mailing Address P.O. BOX 3097
ABILENE, TX 79604-3097
Firm Phone (325)698-5560

Areas of Certification
2.4.1 Nationwide Permit
2.13.1 Hazardous Materials Initial Site Assessment
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
8.1.1 Signing, Pavement Marking, And Channelization
9.1.1 Bicycle And Pedestrian Facility Development
10.2.1 Roadway Hydraulic Design
10.3.1 Bridge Hydraulic Design
10.4.1 Storm Water Pump Station-Hydraulic Design
11.1.1 Roadway Construction Management And Inspection
14.1.1 Soil Exploration
14.2.1 Geotechnical Testing
14.3.1 Transportation Foundation Studies
14.4.1 Building Foundation Studies
15.1.1 Right of Way Surveys
15.2.1 Design Survey
15.2.2 Construction Survey
15.3.5 Horizontal and Vertical Control



Renewal Status MARCH 16, 2020 ( ACTIVE )
Firm Name ENTECH CIVIL ENGINEERS, INC.
Mailing Address 15021 KATY FREEWAY, SUITE 500
HOUSTON, TX 77094
Firm Phone (281)945-0069

Areas of Certification
1.1.1 Policy Planning
1.2.1 Systems Planning
1.3.1 Subarea/Corridor Planning
1.4.1 Land Planning/Engineering
1.5.1 Feasibility Studies
1.6.1 Major Investment Studies
1.8.1 Public Involvement
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
4.4.1 Freeway Interchanges
5.2.1 Bridge Design
5.3.1 Multi-Level Interchange Design
7.1.1 Traffic Engineering Studies
7.3.1 Traffic Signal Timing
7.4.1 Traffic Control Systems Analysis, Design And Implementation
7.5.1 Intelligent Transportation Systems
8.1.1 Signing, Pavement Marking, And Channelization
8.2.1 Illumination
8.3.1 Signalization
8.6.1 Rail-Highway Design
9.1.1 Bicycle And Pedestrian Facility Development
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design
10.3.1 Bridge Hydraulic Design
10.4.1 Storm Water Pump Station-Hydraulic Design
10.5.1 Bridge Scour Evaluations And Analysis
10.8.1 FEMA Regulations and Permits
11.1.1 Roadway Construction Management And Inspection
11.3.1 Construction Superintendent
11.6.1 Construction Schedule Support-General



Renewal Status APRIL 9, 2020 ( ACTIVE )
Firm Name ENTITLEMENT AND ENGINEERING SOLUTIONS, INC.
Mailing Address 501 S. CHERRY ST, SUITE 300
GLENDALE, CO 80246
Firm Phone (303)210-0222

Areas of Certification
8.1.1 Signing, Pavement Marking, And Channelization
17.5.1 Civil Engineering
18.3.1 Utility Adjustment Coordination
18.4.1 Utility Engineering



Renewal Status JULY 8, 2020 ( ACTIVE )
Firm Name ENVIRONMENTAL LOGISTICS COMPANY, LLC
Mailing Address P.O. BOX 3238
MCKINNEY, TX 75070
Firm Phone (469)742-9981

Areas of Certification
2.13.1 Hazardous Materials Initial Site Assessment



Renewal Status FEBRUARY 4, 2020 ( ACTIVE )
Firm Name ENVIRONMENTAL SOLUTIONS & INNOVATIONS, INC.
Mailing Address 4525 ESTE AVENUE
CINCINNATI, OH 45232
Firm Phone (513)451-4177

Areas of Certification
2.3.1 Wetland Delineation
2.4.1 Nationwide Permit
2.4.2 Clean Water Act Sec. 404 Permits
2.4.3 U.S. Coast G. & U.S. Army Corps of Engr. Permits
2.6.2 Impact Evaluation Assessments
2.6.4 Biological Evaluations/Assessments



Renewal Status JUNE 10, 2020 ( ACTIVE )
Firm Name EPB ASSOCIATES, INC.
Mailing Address 14114 DALLAS PARKWAY. SUITE 472
DALLAS, TX 75254
Firm Phone (972)239-5495

Areas of Certification
5.2.1 Bridge Design
10.4.3 Pump Stations-Structures
17.1.1 Structural Engineering



Renewal Status JANUARY 20, 2020 ( ACTIVE )
Firm Name EPIC TRANSPORTATION GROUP, LP
Mailing Address 800 WILCREST DRIVE
HOUSTON, TX 77042
Firm Phone (713)609-9416

Areas of Certification
1.2.1 Systems Planning
1.3.1 Subarea/Corridor Planning
1.4.1 Land Planning/Engineering
1.5.1 Feasibility Studies
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
7.1.1 Traffic Engineering Studies
7.3.1 Traffic Signal Timing
7.4.1 Traffic Control Systems Analysis, Design And Implementation
7.5.1 Intelligent Transportation Systems
8.1.1 Signing, Pavement Marking, And Channelization
8.2.1 Illumination
8.3.1 Signalization
8.4.1 ITS Control Systems Analysis, Design & Implementation
8.6.1 Rail-Highway Design
9.1.1 Bicycle And Pedestrian Facility Development
10.2.1 Roadway Hydraulic Design



Renewal Status FEBRUARY 28, 2020 ( ACTIVE )
Firm Name EPSILON ARCHITECTURE INC.
Mailing Address 2626 COLE AVENUE, SUITE 300, SUITE 300
DALLAS, TX 75204
Firm Phone (469)718-9735

Areas of Certification
16.1.1 Architecture
16.2.1 Building and Facilities Architecture



Renewal Status FEBRUARY 3, 2020 ( ACTIVE )
Firm Name ERGONOMIC TRANSPORTATION SOLUTIONS, INC.
Mailing Address 5300 HOLLISTER SUITE 220
HOUSTON, TX 77040
Firm Phone (713)956-9601

Areas of Certification
1.2.1 Systems Planning
1.3.1 Subarea/Corridor Planning
1.4.1 Land Planning/Engineering
1.5.1 Feasibility Studies
1.6.1 Major Investment Studies
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
4.4.1 Freeway Interchanges
7.1.1 Traffic Engineering Studies
7.3.1 Traffic Signal Timing
7.4.1 Traffic Control Systems Analysis, Design And Implementation
7.5.1 Intelligent Transportation Systems
8.1.1 Signing, Pavement Marking, And Channelization
8.2.1 Illumination
8.3.1 Signalization
8.4.1 ITS Control Systems Analysis, Design & Implementation
8.6.1 Rail-Highway Design
9.1.1 Bicycle And Pedestrian Facility Development
11.1.1 Roadway Construction Management And Inspection



Renewal Status JANUARY 16, 2020 ( ACTIVE )
Firm Name ERI CONSULTING ENGINEERS, INC.
Mailing Address P.O. BOX 2024
TYLER, TX 75710
Firm Phone (903)534-5001

Areas of Certification
2.13.1 Hazardous Materials Initial Site Assessment
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design



Renewal Status JANUARY 13, 2020 ( ACTIVE )
Firm Name ESCALANTE ENGINEERING
Mailing Address 9815 BIG WILLOW LANE
HOUSTON, TX 77064
Firm Phone (713)834-2783

Areas of Certification
8.2.1 Illumination
10.4.1 Storm Water Pump Station-Hydraulic Design
10.4.2 Pump Stations-Electrical
17.2.1 Mechanical Engineering
17.3.1 Plumbing Engineering
17.4.1 Electrical Engineering
17.5.1 Civil Engineering



Renewal Status JANUARY 21, 2020 ( ACTIVE )
Firm Name ESP ASSOCIATES, INC.
Mailing Address P.O. BOX 7030
CHARLOTTE, NC 28241
Firm Phone (803)835-0939

Areas of Certification
15.1.1 Right of Way Surveys
15.2.1 Design Survey
15.2.2 Construction Survey
15.3.1 Aerial Photogrammetry
15.3.4 Mobile and Airborne LiDAR
15.3.5 Horizontal and Vertical Control



Renewal Status JULY 9, 2020 ( ACTIVE )
Firm Name ESSCO INTERNATIONAL INC
Mailing Address 1000 NEWMAN STREET
EL PASO, TX 79902
Firm Phone (915)533-1102

Areas of Certification
1.4.1 Land Planning/Engineering
1.5.1 Feasibility Studies
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
7.1.1 Traffic Engineering Studies
8.1.1 Signing, Pavement Marking, And Channelization
8.3.1 Signalization
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design
18.2.1 Subsurface Utility Engineering
18.3.1 Utility Adjustment Coordination
18.4.1 Utility Engineering
18.5.1 Utility Construction Management and Verification



Renewal Status JANUARY 3, 2020 ( ACTIVE )
Firm Name EST, INC.
Mailing Address 615 NORTH HUDSON, SUITE 300
OKLAHOMA CITY, OK 73102
Firm Phone (405)815-3600

Areas of Certification
1.5.1 Feasibility Studies
1.8.1 Public Involvement
2.3.1 Wetland Delineation
2.4.1 Nationwide Permit
2.6.2 Impact Evaluation Assessments
2.13.1 Hazardous Materials Initial Site Assessment
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
4.4.1 Freeway Interchanges
4.5.1 Constructability Review
5.2.1 Bridge Design
5.5.1 Bridge & Non-Bridge Class Culvert and Inlet Design
6.1.1 Routine Bridge Inspection Team Leader
6.1.2 Routine Bridge Inspection Project Manager
7.1.1 Traffic Engineering Studies
7.3.1 Traffic Signal Timing
8.1.1 Signing, Pavement Marking, And Channelization
8.3.1 Signalization
8.6.1 Rail-Highway Design
9.1.1 Bicycle And Pedestrian Facility Development
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design
10.3.1 Bridge Hydraulic Design
11.1.1 Roadway Construction Management And Inspection
11.2.1 Bridge Construction Management And Inspection
11.3.1 Construction Superintendent
11.4.1 Environmental Inspections
11.7.1 Construct. Schedule Support-Sched of Roadway Design
11.8.1 Construct Schedule Support-Sched Bridge & Interchange Proj
12.1.1 Asphaltic Concrete Production
12.1.2 Portland Cement Concrete
12.1.3 Materials Engineering
12.1.4 Asphaltic Concrete Placement
12.1.5 Portland Cement Concrete Placement
12.1.6 Embankment/Subgrade/Backfill/Base Production
12.1.7 Embankment/Subgrade/Backfill/Base Placement
12.2.1 Plant Inspection And Testing
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
15.3.5 Horizontal and Vertical Control
18.3.1 Utility Adjustment Coordination
18.4.1 Utility Engineering
18.5.1 Utility Construction Management and Verification



Renewal Status FEBRUARY 25, 2020 ( ACTIVE )
Firm Name ETEGRA, INC
Mailing Address 1121 OLIVETTE EXECUTIVE PKWY STE 100
OLIVETTE, MO 63132
Firm Phone (314)533-2200

Areas of Certification
3.2.1 Route Studies & Schematic Design
4.2.1 Roadway Design
7.1.1 Traffic Engineering Studies
7.3.1 Traffic Signal Timing
7.4.1 Traffic Control Systems Analysis, Design And Implementation
8.1.1 Signing, Pavement Marking, And Channelization
8.2.1 Illumination
8.3.1 Signalization
9.1.1 Bicycle And Pedestrian Facility Development
10.1.1 Hydrologic Studies
10.2.1 Roadway Hydraulic Design
10.3.1 Bridge Hydraulic Design
10.4.1 Storm Water Pump Station-Hydraulic Design



Renewal Status JUNE 8, 2020 ( ACTIVE )
Firm Name EXCALIBUR ENGINEERING, LLC
Mailing Address 304 S LYNNWOOD TRL
CEDAR PARK, TX 78613
Firm Phone (512)921-6186

Areas of Certification
6.1.1 Routine Bridge Inspection Team Leader
6.1.2 Routine Bridge Inspection Project Manager



Renewal Status AUGUST 5, 2020 ( ACTIVE )
Firm Name EXP U.S. SERVICES INC.
Mailing Address 205 N MICHIGAN AVENUE SUITE 3600
CHICAGO, IL 60601
Firm Phone (312)616-7406

Areas of Certification
1.1.1 Policy Planning
1.2.1 Systems Planning
1.3.1 Subarea/Corridor Planning
1.4.1 Land Planning/Engineering
1.8.1 Public Involvement
5.2.1 Bridge Design
7.1.1 Traffic Engineering Studies
7.3.1 Traffic Signal Timing
8.1.1 Signing, Pavement Marking, And Channelization
8.3.1 Signalization
11.1.1 Roadway Construction Management And Inspection



Renewal Status JANUARY 16, 2020 ( ACTIVE )
Firm Name FEHR & PEERS
Mailing Address 100 PRINGLE AVE STE 600
WALNUT CREEK, CA 94596
Firm Phone (925)977-3214

Areas of Certification
1.1.1 Policy Planning
1.2.1 Systems Planning
1.3.1 Subarea/Corridor Planning
1.5.1 Feasibility Studies
3.2.1 Route Studies & Schematic Design
7.1.1 Traffic Engineering Studies
8.1.1 Signing, Pavement Marking, And Channelization
9.1.1 Bicycle And Pedestrian Facility Development




Updated August 14, 2020

spacer spacer
Disclaimer | Accessibility Policy | Privacy and Security Policy | Open Records | TxDOT Contacts