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The ALLEGRO 9401 is a manhole guard rail designed to provide above-grade fall protection around open manhole entries during confined space access operations. Standing 44.5 inches in height, this guard rail creates a visible and physical barrier at the manhole opening, helping crews meet OSHA confined space entry requirements. At 40 pounds, the unit is substantial enough for stable placement on grade-level surfaces. It is intended for use by safety-trained personnel, utility workers, and confined space entry teams working in municipal, industrial, or commercial environments.
This guard rail is suited for applications where workers need to establish a protected perimeter around an open manhole during inspection, maintenance, or entry operations. It is commonly deployed in sewer, stormwater, electrical vault, and telecommunications access scenarios. The 44.5-inch height brings the barrier to a level that provides meaningful fall-arrest perimeter protection around standard manhole openings at street or grade level.
Designed as an OEM-style fit for standard manhole openings used in confined space entry applications across utility, municipal, and industrial worksites.
Placement and setup should be performed by a qualified confined space entry supervisor or safety-trained technician in accordance with OSHA 29 CFR 1910.146 and applicable site safety plans. Ensure the surrounding grade surface is stable and level before positioning the guard rail. Do not leave the manhole opening unattended without the guard rail properly positioned when entry operations are active.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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