Abutment
Aerator
Apron
Boom
Bridge or draw span
Bulkhead
By-pass channel, canal or diversion facility
Canal
Conduit (drainage)
Crib
Culvert
Dam
Dike
Fish ladder
Fence (complete)
Flashboard facility
Flume
Flush, inlet or outlet chamber
Forebay
Gate
Gate hoist
Gate hoist track
Gatehouse
Gate section
Gravity section
Heating or thawing system
Intake chamber
Intake screen
Landscaping (complete project)
Manhole or catch basin
Measuring facility (weir, etc.)
Paving
Penstock
Pier
Piling, system of, to protect any of the structures
Piping, within the structure (any two or more continuous standard lengths of pipe, with appurtenances)
Retaining wall
Riprap (any continuous area)
Road, walk or walkway (complete)
Sewer, complete (run between catch basin or manhole)
Sluiceway
Spillway or channel
Substructure, power plant
Tailrace or raceway
Tank surge
Trash rack
Tunnel
Valve
Valve vault
Wall (wing, cutoff or baffle)
Wicket
Wiring, light or power system
Ill. Admin. Code tit. 83, § 605.305