Finally!  Found the answer in 12.6.5 of the manual:

    Here is line the long line @@html:<br>@@

I had tried the '@@' but did not put the "html:".  Hope this helps someone else.

--dag

On 09/20/2016 05:28 PM, David A. Gershman wrote:
I'm struggling trying to get an .org file exported and showing how I typically structure my HTML results.  At this point, I'm trying to figure out how to get a "<br>" inserted to force continuation on the next line.

My org file has:

    This is line one.
    This is line two.

but the HTML export makes them different paragraphs...which is what I utilize.  However, a separate portion of my file has a long line and I do not want a new paragraph, just to force a <br>:

    This is a long line for which I want to simply, at some point,
    start the rest on the next line.  Not a separate paragraph.

With Babel, we can do things like src_perl{#code} for inline code execution, but what about substitutions like HTML where code isn't executed?

TIA.

--dag