"design"=>"barrel","ref"=>"13A","structure"=>"tubular","tower:type"=>"anchor"
"design"=>"barrel","ref"=>"21A","structure"=>"tubular","tower:type"=>"anchor"
"design"=>"barrel","ref"=>"1A","structure"=>"tubular","tower:type"=>"termination"
"design"=>"barrel","ref"=>"26A","structure"=>"tubular","tower:type"=>"anchor"