Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          08-084-14-19  11-276404                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                 100%          61%                             
11-SD-5-6.3/R53.5                    Federal Project:                                   
                                     NONE                                               
                                                                                        
                                                                                        
Progress payment No. 04            Payment period ending: 03-20-08                      
ARBORWORKS INC                                                                          
11875 DUBLIN BLVD SUITE C 152                                                           
DUBLIN CA 94568                                                                         
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.         362,865.00      113,021.00                      
2.a. Extra Work                                                                         
  b. Adjustment Comp.                                                                   
3. Materials on Hand                                                                    
4. Earned Subject to Retention          362,865.00      113,021.00                      
5. Mobilization                           5,500.00            0.00                      
6. Total Work Completed      368,365.00                                                 
7. Deductions                            -1,000.00            0.00                      
8. a.Contract Retentions                -18,143.25       -5,651.05                      
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor              349,221.75      107,369.95                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                             107,369.95