TXDot Precertified Work
Transportation Systems Planning
1.4.1 Land Planning/Engineering
Environmental Studies
1.6.1 Major Investment Studies
Schematic Development
2.5.1 Water Pollution Abatement Plan
Schematic Development
3.1.1 Route Studies and Schematic Design – Minor Roadways
3.2.1 Route Studies and Schematic Design – Major Roadways
3.3.1 Route Studies and Schematic Design – Complex Highways
3.4.1 Minor Bridge Layouts
3.6.1 Multi-Level Interchange and Exotic Bridge Layout
Roadway Design
4.1.1 Minor Roadway Design
4.2.1 Major Roadway Design
4.3.1 Complex Highway Design
4.4.1 Major Freeway Interchanges and Direct Connections
Traffic Engineering and Operations Design
7.1.1 Traffic Engineering Studies
7.4.1 Traffic Control Systems Analysis, Design Implementation
Traffic Operations Design
8.1.1 Signing, Pavement Marking and Channelization
Bicycle and Pedestrian Facilities
9.1.1 Bicycle and Pedestrian Facility Development
Hydraulic Design and Analysis
10.1.1 Hydrologic Studies
10.2.1 Basic Hydraulic Design
10.3.1 Complex Hydraulic Design
Materials Inspection and Testing
Geotechnical Services
12.2.1 Plant Inspection and Testing
Surveying and Mapping
14.1.1 Soil Exploration
14.2.1 Geotechnical Testing
15.1.1 Survey









