|Exhibit 31.1                                                                                                                                                                                                                                                                                                                     
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|CERTIFICATIONS                                                                                                                                                                                                                                                                                                                   
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|I, Kenneth E. Stinson, Chief Executive Officer, certify that:                                                                                                                                                                                                                                                                    
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|1.
I have reviewed this quarterly report on Form 10-Q of Peter Kiewit Sons, Inc.                                                                                                                                                                                                                                                
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|2.
Based on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report;
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|3.
Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report;                   
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|4.
The registrants other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-14 and 15d-14) for the registrant and we have:                                                                                                      
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|a.
designed such disclosure controls and procedures to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this quarterly report is being prepared;                               
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|Date:  August 6, 2004




/s/  Kenneth E. Stinson

Kenneth E. Stinson
Chief Executive Officer
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