[Unit 5: Additional Materials]{.smallcaps}

+-----------------------------------------------------------------------+
| # Leveraging/Cribbing Operation                                       |
+-----------------------------------------------------------------------+
| 1.  Conduct a sizeup of the scene: Gather facts, identify hazards,    |
|     and establish priorities.                                         |
|                                                                       |
| 2.  Have one person in charge and formulate a plan of action based    |
|     upon the information you have received. Identify                  |
|     [how]{.underline} and [where]{.underline} to lift and crib.       |
|                                                                       |
| 3.  Gather necessary materials for lifting/cribbing operations:       |
|                                                                       |
| -   Lever                                                             |
|                                                                       |
| -   Fulcrum                                                           |
|                                                                       |
| -   Cribbing blocks                                                   |
|                                                                       |
| -   Spacers/wedges                                                    |
|                                                                       |
| 4.  Use cribbing materials to stabilize the object prior to lifting.  |
|     (Set the foundation of the box crib.)                             |
|                                                                       |
| 5.  Distribute crib materials as necessary to be readily accessible   |
|     during the lifting operation.                                     |
|                                                                       |
| 6.  Prepare to lift the object: Assemble the lever and fulcrum at the |
|     previously identified location.                                   |
|                                                                       |
| 7.  Have someone available to handle the victim.                      |
|                                                                       |
| 8.  Initiate the lift, using the lever and fulcrum for mechanical     |
|     advantage.                                                        |
|                                                                       |
| 9.  As the object is lifted, add cribbing as needed; build on the     |
|     foundation of the box crib.                                       |
|                                                                       |
| 10. When the object is adequately supported, remove the lever and     |
|     fulcrum. The victim may then be removed.                          |
|                                                                       |
| 11. Reinitiate the lift and begin removing cribbing materials,        |
|     reversing the process by which the crib was built.                |
|                                                                       |
| 12. Progressively lower the object to the ground.                     |
|                                                                       |
| 13. Reassemble the lifting/cribbing supplies to be available for      |
|     additional operations.                                            |
+-----------------------------------------------------------------------+

+-----------------------------------------------------------------------+
| # Arrangement for Leveraging/Cribbing Operation                       |
+-----------------------------------------------------------------------+
| ![](media/image1.wmf){width="4.9in" height="3.9166666666666665in"}    |
+-----------------------------------------------------------------------+
| **Team Organization for Leveraging/Cribbing Operation, showing the    |
| victim underneath a collapsed wall and the CERT members at the        |
| following locations:**                                                |
|                                                                       |
| -   **Group Leader: In front of collapse, positioned so that he or    |
|     she can view the entire operation while remaining out of the      |
|     rescuers' way.**                                                  |
|                                                                       |
| -   **Lever Person: At the front edge of the collapsed wall and       |
|     positioned so that he or she can position a fulcrum and lever     |
|     under the wall.**                                                 |
|                                                                       |
| -   **Crib Persons: On either side of the collapsed wall and          |
|     positioned to enable the placement of cribbing as the wall is     |
|     raised with the lever.**                                          |
|                                                                       |
| -   **Medical Care/Victim Removal Person: Next to the Crib Person who |
|     is closest to the victim's head.**                                |
+-----------------------------------------------------------------------+

+-----------------------------------------------------------------------+
| # Box Cribbing                                                        |
+-----------------------------------------------------------------------+
| ![](media/image2.wmf){width="3.6798611111111112in"                    |
| height="4.190972222222222in"}                                         |
+-----------------------------------------------------------------------+
| **Four steps for building box cribbing: Step 1: Position two pieces   |
| of wood parallel to each other on either side of the collapse. Step   |
| 2: Place two pieces of wood perpendicularly across the base pieces.   |
| Steps 3 and 4: Add additional layers of wood, with each perpendicular |
| to the previous level.**                                              |
+-----------------------------------------------------------------------+

+---------------+------------------+----------------------+-----------+
| # Probable    |                  |                      |           |
| Severity and  |                  |                      |           |
| Type of Earth |                  |                      |           |
| quake Damage  |                  |                      |           |
| Based on Cons |                  |                      |           |
| truction Type |                  |                      |           |
+---------------+------------------+----------------------+-----------+
| *             | **Description**  | **Probable Damage    | **S       |
| *Construction |                  | Areas**              | everity** |
| Type**        |                  |                      |           |
+---------------+------------------+----------------------+-----------+
| Single-Family | -   Wood frame   | -   Masonry chimney  | Light     |
| Dwelling      |                  |                      |           |
|               | -   Pre-1933     | -   Utilities        | Moderate  |
|               |                  |                      |           |
|               | -   Hillside     | -   Foundation       | Heavy     |
|               |                  |     movement         |           |
|               |                  |                      |           |
|               |                  | -   Utilities        |           |
|               |                  |                      |           |
|               |                  | -   Porches          |           |
|               |                  |                      |           |
|               |                  | -   Unique hazards   |           |
|               |                  |                      |           |
|               |                  | -   Ground failure   |           |
+---------------+------------------+----------------------+-----------+
| Mu            | -   Up-and-down  | -   Soft first floor | Moderate  |
| ltiple-Family |     and/or       |                      |           |
| Dwelling      |     side-by-side | -   Utilities        |           |
|               |     living units |                      |           |
+---------------+------------------+----------------------+-----------+
| Unreinforced  | -   Pre-1933     | -   Arched/recessed  | Heavy     |
| Brick         |     construction |     windows and      |           |
|               |                  |     doors            |           |
|               | -   Lime or sand |                      |           |
|               |     mortar       | -   Walls collapse,  |           |
|               |                  |     then roof        |           |
|               | -   "King Row"   |                      |           |
|               |     or "Soldier  |                      |           |
|               |     Row" (bricks |                      |           |
|               |     turned on    |                      |           |
|               |     edge every   |                      |           |
|               |     5-7 rows)    |                      |           |
|               |                  |                      |           |
|               | -   Reinforcing  |                      |           |
|               |     plates       |                      |           |
+---------------+------------------+----------------------+-----------+
| Tilt-Up       | -   Large        | -   Roof collapses,  | Heavy     |
|               |     warehouses   |     then walls       |           |
|               |     and plants   |                      |           |
|               |                  |                      |           |
|               | -   Concrete     |                      |           |
|               |     slabs lifted |                      |           |
|               |     into place   |                      |           |
|               |                  |                      |           |
|               | -   Walls inset  |                      |           |
|               |                  |                      |           |
|               |    approximately |                      |           |
|               |     6-8 inches   |                      |           |
|               |                  |                      |           |
|               | -   Lightweight  |                      |           |
|               |     roof         |                      |           |
|               |     construction |                      |           |
+---------------+------------------+----------------------+-----------+
| High-Rise     | -   Steel        | -   Broken glass     | Light     |
|               |     reinforced   |                      |           |
|               |                  | -   Content movement |           |
|               |                  |                      |           |
|               |                  | -   Exterior         |           |
|               |                  |     trim/fascia      |           |
+---------------+------------------+----------------------+-----------+

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