**Subsidiaries      of Washington Group International, Inc.**

| **Company                Name**                                                             | **Jurisdiction**                    |
|---------------------------------------------------------------------------------------------|-------------------------------------|
|                                                                                        |                                |
| 21st                Century Rail Corporation                                                | Delaware                            |
| Badger                Energy, Inc.                                                          | Delaware                            |
| Badger                Middle East, Inc.                                                     | Delaware                            |
| Bauxite                Mining & Transport Limited                                       | Jamaica                             |
| Broadway                Insurance Company, Ltd.                                             | Bermuda                             |
| Catalytic                Servicios, C.A.                                                    | Venezuela                           |
| CH2M-WG                Idaho, LLC                                                           | Idaho                               |
| Constructora                MK de Mexico, S.A. de C.V.                                      | Mexico                              |
| Cosa-United,                C.A.                                                            | Venezuela                           |
| Dulles                Transit Partners, LLC                                                 | Virginia                            |
| Ebasco                International Corporation                                             | Delaware                            |
| Energy                Overseas International, Inc.                                          | Delaware                            |
| FD/MK                Limited Liability Company                                              | Delaware                            |
| Gibsin                Engineers, Ltd.                                                       | Rep.                of China        |
| Global                Energy Services LLC                                                   | Delaware                            |
| Hampton                Roads Public-Private Development L.L.C.                              | Virginia                            |
| Harbert-Yeargin                Inc.                                                         | Delaware                            |
| Johnson                Controls Northern New Mexico, LLC                                    | New                Mexico           |
| Leasing                Corporation (The)                                                    | Nevada                              |
| Los                Alamos National Security, LLC                                            | Delaware                            |
| Mibrag                B.V.                                                                  | Netherlands                         |
| Mitteldeutsche                Braunkohlengesellschaft mbH                                   | Germany                             |
| MK                Engineers and Constructors S.A. de C.V.                                   | Mexico                              |
| MK                Engineers and Contractors, S.A. de C.V.                                   | Mexico                              |
| MKK                Leasing General Partnership                                              | Nevada                              |
| Morrison                Knudsen Engenharia S.A.                                             | Brazil                              |
| Morrison                Knudsen Engenharia, S.A.                                            | Brazil                              |
| Morrison                Knudsen Fort Knox Project Limited, LLC                              | Ohio                                |
| Morrison                Knudsen MISR LLC, a Limited Liability Company                       | Egypt                               |
| Morrison                Knudsen Peru Services S.A.                                          | Peru                                |
| Morrison                Knudsen Peru Sociedad de Responsabilidad Limitada                   | Peru                                |
| Morrison                Knudsen Umwelt GmbH                                                 | Germany                             |
| Morrison                Knudsen Venezuela S.A.                                              | Venezuela                           |
| National                Projects, Inc.                                                      | Nevada                              |
| Parkway                Group LLC                                                            | Georgia                             |
| Platte                River Constructors Ltd.                                               | Colorado                            |
| Pomeroy                Corporation                                                          | California                          |
| PT                Morrison Knudsen Indonesia                                                | Indonesia                           |
| PT                Power Jawa Barat                                                          | Indonesia                           |
| Ralph                Tyler Services, Ltd.                                                   | Ohio                                |
| Randolph-Washington                Group LLC                                                | Delaware                            |
| Raytheon                Engineers & Constructors Italy SRL                              | Italy                               |
| Raytheon-Ebasco                Overseas Ltd.                                                | Delaware                            |
| Rocky                Mountain Remediation Services LLC                                      | Colorado                            |
| Rust                Constructors Puerto Rico, Inc.                                          | Nevada                              |
| Rust                Constructors, Inc.                                                      | Delaware                            |
| Safe                Site of Colorado LLC                                                    | Delaware                            |
| SBG-Rust                                                                                    | Saudi                Arabia         |
| Shanghai                Ebasco - ECEPDI Engineering Corporation                             | Rep.                of China        |
| Steam                Generating Team LLC (The)                                              | Ohio                                |
| Targhee                Overseas Services LLC                                                | Delaware                            |
| THOR                Treatment Technologies, LLC                                             | Delaware                            |
| United                Engineers Far East, Ltd.                                              | Delaware                            |
| United                Engineers International, Inc.                                         | Pennsylvania                        |
| United                Mid East Saudi Arabia                                                 | Saudi                Arabia         |
| United                Mid-East, Inc.                                                        | Delaware                            |
| Washington                ACE LLP                                                           | United                Kingdom       |
| Washington                Architects, LLC                                                   | Delaware                            |
| Washington                Business Development (UK) Limited                                 | United                Kingdom       |
| Washington                Closure Company LLC                                               | Washington                          |
| Washington                Closure Hanford LLC                                               | Delaware                            |
| Washington                Construction Corporation                                          | Nevada                              |
| Washington                Demilitarization Company                                          | Delaware                            |
| Washington                E & C Limited                                                 | United                Kingdom       |
| Washington                E&C Romania S.R.L.                                            | Romania                             |
| Washington                Earth Tech Disposal Cell (WEDC) LLC                               | Tennessee                           |
| Washington                Engineers LLP                                                     | United                Kingdom       |
| Washington                Engineers PSC                                                     | Puerto                Rico          |
| Washington                Enterprises Emirates LLC                                          | United                Arab Emirates |
| Washington                Global Services, Inc.                                             | Nevada                              |
| Washington                Government Environmental Services Company LLC                     | Delaware                            |
| Washington                Group (Malaysia) Sdn Bhd                                          | Malaysia                            |
| Washington                Group (St. Lucia) Holding Ltd.                                    | St.                Lucia            |
| Washington                Group Argentina, Inc.                                             | Nevada                              |
| Washington                Group Bolivia S.R.L.                                              | Bolivia                             |
| Washington                Group BWXT Operating Services, Inc.                               | Delaware                            |
| Washington                Group Deutschland GmbH                                            | Germany                             |
| Washington                Group Engineering Consulting (Shanghai) Company Ltd.              | Rep.                of China        |
| Washington                Group Engineers & Constructors Espana, S.L.                   | Spain                               |
| Washington                Group Holdings Limited                                            | Colorado                            |
| Washington                Group Industrial GmbH                                             | Germany                             |
| Washington                Group International do Brasil Ltda.                               | Brazil                              |
| Washington                Group International Hungary Kft                                   | Hungary                             |
| Washington                Group International Trading (Shanghai) Co. Ltd.                   | Rep.                of China        |
| Washington                Group International, Inc.                                         | Ohio                                |
| Washington                Group Ireland Ltd.                                                | Delaware                            |
| Washington                Group Latin America, Inc.                                         | Delaware                            |
| Washington                Group Northern Ltd.                                               | Canada                              |
| Washington                Group NTS LLC                                                     | Delaware                            |
| Washington                Group Polska Sp.zo.o.                                             | Poland                              |
| Washington                Infrastructure Corporation                                        | New                York             |
| Washington                Infrastructure Services, Inc.                                     | Colorado                            |
| Washington                International B.V.                                                | Netherlands                         |
| Washington                International Holding Limited                                     | United                Kingdom       |
| Washington                International Saudi Arabia                                        | Saudi                Arabia         |
| Washington                International, Inc.                                               | Nevada                              |
| Washington                International, LLC                                                | Delaware                            |
| Washington                Midwest LLC                                                       | Ohio                                |
| Washington                Ohio Services, LLC                                                | Delaware                            |
| Washington                Quality Inspection Company                                        | Delaware                            |
| Washington                Quality Programs Company                                          | Delaware                            |
| Washington                Safety Management Solutions LLC                                   | Delaware                            |
| Washington                Savannah River Company LLC                                        | Delaware                            |
| Washington                Senggara Sdn Bhd                                                  | Malaysia                            |
| Washington                Services (Thailand) Ltd.                                          | Thailand                            |
| Washington                Transportation Partners Limited Liability Company                 | Washington                          |
| Washington                TRU Solutions LLC                                                 | New                Mexico           |
| Washington                Zander Global Services GmbH                                       | Germany                             |
| Washington                Zander Global Services UK Limited                                 | United                Kingdom       |
| Washington/SNC-Lavalin                LLC                                                   | Delaware                            |
| Washington-Catalytic,                Inc.                                                   | Delaware                            |
| Washington-Framatome                ANP DE&S Decontamination & Decommissioning, LLC | New                Mexico           |
| West                Valley Environmental Services LLC                                       | Delaware                            |
| West                Valley Nuclear Services Company LLC                                     | Delaware                            |
| Westmoreland                Resources, Inc.                                                 | Delaware                            |
| WGCI,                Inc.                                                                   | Delaware                            |
| WGI                Asia Pacific Pte. Ltd.                                                   | Singapore                           |
| WGI                Asia, Inc.                                                               | Delaware                            |
| WGI                Global, Inc.                                                             | Nevada                              |
| WGI                Industrial Services, Ltd.                                                | Ohio                                |
| WGI                Middle East (UK) Ltd.                                                    | United                Kingdom       |
| WGI                Middle East, Inc.                                                        | Nevada                              |
| WGI                Netherlands B.V.                                                         | Netherlands                         |
| Wisconsin                Power Constructors, LLC                                            | Wisconsin                           |
| WSMS                Mid-America LLC                                                         | Delaware                            |
| WSMS-MK                LLC                                                                  | Tennessee                           |