Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          05-202-09-29  04-049044                       
Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          05-203-14-00  11-241804                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  12%           7%                             
Location:                                  12%          38%                             
11-SD-67-6.7/9.3                    Federal Project:                                    
04-SF-80-6.0/7.5                    Federal Project:                                    
                                     ACST-P067(68)                                      
                                     NONE                                               
                             PH-P067(68)                                                
                                                                                        
                                                                                        
                                                                                        
Progress payment No. 04            Payment period ending: 07-20-05                      
Progress payment No. 01            Payment period ending: 07-20-05                      
ERRECAS INC                                                                             
CALIFORNIA ENGINEERING                                                                  
P O BOX 640                                                                             
CONTRACTORS INC                                                                         
LAKESIDE CA 92040                                                                       
20 HAPPY VALLEY ROAD                                                                    
                                                                                        
PLEASANTON CA 94566                                                                     
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
Escrow No.  02195                                                                       
                                    Total Estimate   This Estimate                      
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.         180,314.84      180,314.84                      
1. Contract Itms Without Mobil.         297,540.00       82,215.00                      
2.a. Extra Work                                                                         
2.a. Extra Work                                                                         
  b. Adjustment Comp.                                                                   
  b. Adjustment Comp.                                                                   
3. Materials on Hand                    496,354.77      124,459.00                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention          793,894.77      206,674.00                      
4. Earned Subject to Retention          180,314.84      180,314.84                      
5. Mobilization                         126,000.00      126,000.00                      
5. Mobilization                         455,250.00            0.00                      
6. Total Work Completed      306,314.84                                                 
6. Total Work Completed      752,790.00                                                 
7. Deductions                                                                           
7. Deductions                            -2,731.70       -2,731.70                      
8. a.Contract Retentions                                                                
8. a.Contract Retentions                -79,389.48      -20,667.40                      
   b. Unsatisfactory Prog.                                                              
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor            1,169,755.29      186,006.60                      
9. Total pay to Contractor              303,583.14      303,583.14                      
10. Reduction Amt to Escrow                                                             
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
11. Payment to Escrow        79,380.00                                                  
12. Net Pymt. this Estimate                             303,583.14                      
12. Net Pymt. this Estimate                             186,006.60