I have a portion of a spreadsheet with 13 columns and 119 rows of data (from
BE5 to BQ123 - with each row being designated as "HOV Freeway" "Freeway" or
"Arterial" in column C). I tried to perform a simple sum on this data IF the
row is a "HOV Freeway".

So the formula I used was: =(SUMIF(C5:C123,"HOV Freeway",BE5:BQ123))...
I didn't get any type of error, excel seemed to accept the formula and gave
me a value of 24889.6, but that value is just the Sum of BE5:BE123. When
doing a quick check, the real value should be 281261.0... not even close to
what excel calculated for me.

My question is, why didn't I get an error if it is only going to sum one
column, instead of the 13 columns I thought I was asking for in the formula?

Is there a way to sum all of those columns and rows, using SUMIF? Does the
range you specify for SUMIF correlate to the sum_range (ie, if the 'if' range
is only 1 column, the sum_range can only be returned for 1 column)? I really
need this to work for 13 columns.

Thanks a lot for the help.