| | COLUMBIA RIVER TURNING BASINS INVESTIGATION | TETRA TECH, INC. | $1,091,079 | DEPT OF THE ARMY | US ARMY CORPS OF ENGINEERS - CIVIL PROGRAM FINANCING ONLY | — | 541330Engineering Services | C212ARCHITECT AND ENGINEERING- GENERAL: ENGINEERING DRAFTING, NOT CAD/CAM | Aug 11, 2023 | May 23, 2023 | Dec 31, 2024 |
| | C&LW: SKAMOKAWA PILE DIKES PLANS AND SPECIFICATIONS | TETRA TECH, INC. | $1,206,783 | DEPT OF THE ARMY | US ARMY CORPS OF ENGINEERS - CIVIL PROGRAM FINANCING ONLY | — | 541330Engineering Services | C212ARCHITECT AND ENGINEERING- GENERAL: ENGINEERING DRAFTING, NOT CAD/CAM | May 23, 2023 | May 23, 2023 | Apr 22, 2025 |
| | COLUMBIA RIVER TURNING BASINS INVESTIGATION | TETRA TECH, INC. | $0 | DEPT OF THE ARMY | US ARMY CORPS OF ENGINEERS - CIVIL PROGRAM FINANCING ONLY | — | 541330Engineering Services | C219ARCHITECT AND ENGINEERING- GENERAL: OTHER | May 23, 2023 | May 23, 2023 | Jun 30, 2024 |
| | DEXTER ADULT FISH FACILITY INTAKE SCREENS EDR | TETRA TECH, INC. | $883,315 | DEPT OF THE ARMY | US ARMY CORPS OF ENGINEERS - CIVIL PROGRAM FINANCING ONLY | — | 541330Engineering Services | C212ARCHITECT AND ENGINEERING- GENERAL: ENGINEERING DRAFTING, NOT CAD/CAM | May 11, 2023 | May 12, 2023 | Dec 8, 2023 |
| | FY2021 LEVEE SAFETY INSPECTIONS | TETRA TECH, INC. | $369,544 | DEPT OF THE ARMY | US ARMY CORPS OF ENGINEERS - CIVIL PROGRAM FINANCING ONLY | — | 541330Engineering Services | C212ARCHITECT AND ENGINEERING- GENERAL: ENGINEERING DRAFTING, NOT CAD/CAM | Sep 27, 2021 | Sep 25, 2021 | Jul 22, 2022 |
| | PLANS AND SPECIFICATIONS | TETRA TECH, INC. | $367,097 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541330Engineering Services | C212ARCHITECT AND ENGINEERING- GENERAL: ENGINEERING DRAFTING, NOT CAD/CAM | Sep 17, 2020 | Sep 11, 2020 | May 24, 2022 |
| | A&E SERVICES - EDR AND DDR REPORTS | TETRA TECH, INC. | $3,384,859 | DEPT OF THE ARMY | US ARMY CORPS OF ENGINEERS - CIVIL PROGRAM FINANCING ONLY | — | 541330Engineering Services | C212ARCHITECT AND ENGINEERING- GENERAL: ENGINEERING DRAFTING, NOT CAD/CAM | Sep 30, 2019 | Sep 30, 2019 | Mar 22, 2024 |
| | COUGAR FISH PASSAGE ALTERNATIVES REEVALU | TETRA TECH, INC. | $894,965 | DEPT OF THE ARMY | US ARMY CORPS OF ENGINEERS - CIVIL PROGRAM FINANCING ONLY | — | 541330Engineering Services | C212ARCHITECT AND ENGINEERING- GENERAL: ENGINEERING DRAFTING, NOT CAD/CAM | Sep 26, 2019 | Sep 26, 2019 | Feb 23, 2021 |
| | IGF::OT::IGF FY18 PERIODIC LEVEE INSPECTIONS- WEST OR | TETRA TECH, INC. | $522,764 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541330Engineering Services | C212ARCHITECT AND ENGINEERING- GENERAL: ENGINEERING DRAFTING, NOT CAD/CAM | Sep 27, 2018 | Sep 28, 2018 | Sep 30, 2019 |
| | IGF::OT::IGF PERIODIC LEVEE INSPECTIONS- EAST (OR) | TETRA TECH, INC. | $428,497 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541330Engineering Services | C212ARCHITECT AND ENGINEERING- GENERAL: ENGINEERING DRAFTING, NOT CAD/CAM | Sep 20, 2018 | Sep 20, 2018 | Sep 30, 2019 |
| | COMPREHENSIVE A-E SERVICES | TETRA TECH, INC. | $0 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541330Engineering Services | C212ARCHITECT AND ENGINEERING- GENERAL: ENGINEERING DRAFTING, NOT CAD/CAM | May 24, 2018 | May 24, 2018 | May 23, 2023 |
| | COMPLETION OF DESIGN MILLPOND & GORRIE | TETRA TECH, INC. | $76,608 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541330Engineering Services | C219ARCHITECT AND ENGINEERING- GENERAL: OTHER | Mar 9, 2009 | Mar 6, 2009 | Jul 6, 2009 |