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