Conduit Single Offset End
While not as sturdy as solid concrete, iron constructions have high structural integrity, requiring fewer support pillars.
Salvage drops
Electrical Parts× 1
Iron× 2-6
Extra parts when salvaged with a wrench, ratchet or impact driver.
When it collapses
Falling, it leaves 
Scrap Metal Pile (60% of the time) where it lands.
Where to find (14 POIs)
Higashi Pharmaceutical (tier 5), Navezgane County Jail (tier 5), Infested Warehouse (tier 4), Installation Blue Ridge (tier 4), Hexagon Hideaway (tier 3), HNN Bank (tier 3), Pass-N-Gas Plaza (tier 3), Post Office #2 (tier 3), The Fire Pit Lodge (tier 3), Weston Weigh Station (tier 3), Ma Baker & Sons Bakery (tier 2), Post Office Apartment (tier 2), Camp Carlson (tier 1), Duck Station (tier 1).
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.