Material bridging in silos can support product above an empty space. Observations from approved positions and the receiving capacity below the outlet belong in the removal plan before any material is disturbed.
A bridge can fail without warning. Isolate connected equipment, prevent access beneath the outlet and do not strike, probe or enter the vessel to test it.
Plan where released material could travel
A bridge can sit above an empty space and change without warning. The last level, feeder response and any hollow flow pattern help describe the condition from outside. Note whether material stopped at once or narrowed gradually; that observation is safer and more useful than attempting to probe the stored mass.
Maintain the outlet exclusion in place
The site controls connected equipment while the contractor assesses how material could be released and recovered.
The silo de-bridging service addresses supported material. If the symptom is a narrow central flow channel, read about rat-holing. Remote cleaning before silo entry explains why external options are considered first.
Opening the outlet can release the supported load
Opening, striking or probing the outlet can release material supported above a void. Record the high level and poor discharge from approved positions while the area beneath remains clear. The removal plan must account for where that load could travel and whether the receiving equipment can contain it.