nrc manhole inspection
Preparation
Visual Inspection
- Look for cracks, chips, or any other visible damage on the surface of the manhole cover.
- Check for any signs of wear, such as rust or corrosion.
- Inspect the cover for any loose or missing bolts or fasteners.
- Make sure the cover is aligned with the frame and sits flush.
- Check if the cover is securely fastened and does not move or wobble.
- Ensure there are no gaps or openings around the edges of the cover.
- Check for any signs of damage or deterioration on the frame.
- Inspect the frame for any loose or missing bolts or fasteners.
- Ensure the frame is securely anchored to the surrounding structure.
- Look for any visible cracks, fractures, or separations in the manhole walls.
- Check for any signs of leaks, such as water stains or dampness.
- Inspect the walls for any bulges or deformations that could indicate structural damage.
- Check the ladder for any signs of damage, such as bent or broken rungs.
- Ensure the ladder is securely attached to the manhole walls or frame.
- Test the ladder by applying slight pressure to ensure it is stable and can support weight.
- Look for any signs of erosion or soil displacement around the manhole.
- Check for any cracks or sinking of the ground in the vicinity of the manhole.
- Inspect the area for any signs of water pooling or drainage issues.
- Remove any debris or obstructions that may be present inside the manhole
- Ensure that there are no objects blocking the flow of water or obstructing access to important components
- Inspect each step or rung of the ladder for any signs of damage or wear
- Check for any loose or missing steps and ensure they are securely attached
- Carefully examine the walls and surfaces inside the manhole for any signs of corrosion or rust
- Pay attention to areas where moisture may accumulate, as these are more prone to corrosion
- Turn on the lighting system and check if all lights are working
- Inspect the wiring and connections to ensure there are no loose or exposed wires
- Check each equipment or device for any signs of malfunction or damage
- Ensure that all components are properly connected and functioning as intended
- Sniff the air inside the manhole and pay attention to any unusual odors or gases
- If any suspicious odors or gases are detected, evacuate the area and notify the appropriate personnel
- Inspect all cables and wiring inside the manhole for any signs of damage or wear
- Ensure that all cables are securely fastened and properly insulated
- Visually examine the bench or shelf inside the manhole for any cracks or visible damage
- Check the stability of the bench or shelf by applying gentle pressure
- Inspect the interior surfaces of the manhole for any signs of water or moisture
- Check for any puddles or wet areas that could indicate a leak or drainage problem
- Carefully examine all safety signage and warning labels inside the manhole for legibility
- Ensure that the labels are not faded, damaged, or obstructed in any way
Internal Inspection
- Thoroughly examine the interior walls for any cracks, spalling, or signs of deterioration.
- Check for any signs of corrosion, such as rust or discoloration, on the walls.
- Check the invert of the manhole, the lowest point where wastewater flows, for any sediment buildup or blockages.
- Ensure that the invert is clear and allows for proper flow.
- Inspect all pipes and conduits that enter or exit the manhole for any signs of damage, leaks, or corrosion.
- Check the connections and joints to ensure they are secure and properly sealed.
Use in Manifestly