.htaccess - Wordpress 3.8.1 Multisite Subdirectory WP-Admin 404 Error - Tried Everything -

domain www.sandersonathletics.org

wordpress 3.8.1, multisite subdirectory.

the error thats cropping identified on new subdirectory site; www.sandersonathletics.org/football - unformatted , www.sandersonathletics.org/football/wp-admin 404 error

1. i've verified .htaccess file matches what's in wordpress.
2. i've verified appropriate location of .htaccess (public_html root)
3. i've verified wp-config file , location of multisite data in right place , i've checked what's there.
4. i've reviewed entries in mysql database , www. matches in wp-config, database, etc. (the host suggested this)
5. i've renamed plug-in directory plugin-bak debug plugin issue. had no effect.
6. i'm hosted dreamhost shared servers.

.htaccess

<ifmodule mod_rewrite.c> rewriteengine on rewritebase / rewriterule ^index\.php$ - [l]  # add trailing slash /wp-admin rewriterule ^([_0-9a-za-z-]+/)?wp-admin$ $1wp-admin/ [r=301,l]  rewritecond %{request_filename} -f [or] rewritecond %{request_filename} -d rewriterule ^ - [l] rewriterule ^([_0-9a-za-z-]+/)?(wp-(content|admin|includes).*) $2 [l] rewriterule ^([_0-9a-za-z-]+/)?(.*\.php)$ $2 [l] rewriterule . index.php [l] </ifmodule>