Stiver Engineering provides clients with construction consulting through trench safety & bore pit/access shaft plans throughout the country. These plans are designed per OSHA Regulations: 29 CFR 1926, Subpart P – Excavation, Trenching, and Shoring [1926.652(c)(4)]. We incorporate trench boxes, steel plates, and timber lagging into our trench safety & bore pit/access designs, which are sized and designed per the required depth of the excavation and the project’s soil conditions.