And have access to their library?
This is a big ask and I don't even know if you will be able to access it but you might be able to find someone who can.
I am desperately seeking this article
Burke, RW and Stolzenbach KD (1983) Free surface flow through salt marsh grass. Cambridge. Massachusetts: Massachusetts Institute of Technology. MITSG 83-16 252p
and when I say desperately seeking I mean - wow if I could find this is would be completely awesome and back up/dispute my work

So if you could help this would be awesome - looks like an internal work that for some reason never got published.