"Structure" means that which is built or constructed, an edifice or building of any kind, or any piece of work artificially built up or composed of parts joined together in some definite manner, or an improvement attached to real estate or any part thereof as described in ORS 701.005.
Or. Admin. Code § 812-002-0700
Stat. Auth.: ORS 670.310 & 701.235
Stats. Implemented: ORS 87.058, 279C.460, 646.605 & 701