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Square Manhole Trench Shield


Square Manhole Trench Shield

GME’s Manhole Trench Shields are designed to allow a pipe job to progress along with little interruption or delay. The idea behind these trench boxes is to use them in conjunction with trench shields on a job-site. When the job lead to a manhole structure, insert the Manhole Trench Box and continue on with the pipe work on the other side.


The GME Shields are available as a; Square Manhole, Round Manhole (providing complete protection on all sides), Octagon Manhole and a 4-Sided Manhole Shield (WTB Series). All trench shields are designed by GME to be used with in the 40,000 to 60,000 lb range.


The square manhole trench box configuration provides the needed inside clear span while reducing the amount of excavation and restoration required. GME manhole shields ship knocked down and assemble in minutes at the job site. Standard models include two walls, two spreader assemblies, eight pins and keepers.


  • Hardwood inserts
  • Honey-comb inner structure
  • 8″ Reinforced knife edge
  • GME offers a stacking unit to be used with the standard MH Shields
  • 5″ dia. Sch. 80 connected spreader pipes
  • Custom cut-outs available



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Griswold Machine & Engineering Manhole Trench Shield Models

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