1    1   NUMBER OF REACHES PER SEGMENT IN TRSTREAM.DAT
         7    2   FN=REACH.DAT                                    
         9    3   NO. OF REACHES PER SEGMENT; SEGMENT NUMBER
        17    4   only the first number per row is read by STREAM.FOR                                  
         6    5   FORMAT:  I10, I5
        21    6   
         2    7   
        24    8
         5    9
        18   10
         5   11
        15   12
         3   13
         6   14
        19   15
        12   16
        13   17
        12   18
         4   19
         3   20
        12   21
         4   22
         8   23
         9   24
         6   25
        21   26
        20   27
        12   28
         5   29
        15   30
         5   31
         3   32
         2   33
         4   34
        12   35
        10   36
         1   37
         9   38
        10   39
        18   40
        30   41
         4   42
         4   43
         3   44
         1   45
         1   46
         1   47