Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          08-115-15-56  08-3770U4                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  60%          63%                             
08-SBD-5506                    Federal Project:                                         
                                     CMLN-6208(14)                                      
                                                                                        
                                                                                        
Progress payment No. 04            Payment period ending: 04-18-08                      
RIVERSIDE CONSTRUCTION                                                                  
COMPANY INC                                                                             
P O BOX 1146                                                                            
RIVERSIDE CA 92502                                                                      
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.       1,326,510.54      564,675.84                      
2.a. Extra Work                          80,599.78        6,896.92                      
  b. Adjustment Comp.                    40,118.96            0.00                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention        1,447,229.28      571,572.76                      
5. Mobilization                         320,000.00       16,000.00                      
6. Total Work Completed    1,767,229.28                                                 
7. Deductions                           -41,765.90       -2,088.30                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor            1,725,463.38      585,484.46                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                             585,484.46