load ratings
4 articles in load ratings.
Catch Basins: What They Are, How They Work, and What Hardware Keeps Them Functional
Catch basins collect surface runoff and trap sediment before it enters storm sewer systems. Learn how they work, what materials and load ratings to specify for grates and frames, common failure modes, maintenance intervals, and how to choose the right hardware for your application.
Utility Vaults 101: How to Choose an Underground Enclosure, Lid, and Load Rating
How to spec a utility vault: enclosure types, polymer-concrete vs. cast-iron construction, H-20 load ratings, sizing, and lid options for water, electrical, and irrigation access.
Steel Manhole Covers and Skirts: When Rigidity Is the Spec
When to choose a steel manhole cover or steel-skirt frame over cast iron or composite: structural rigidity, anchoring in concrete, diamond-plate lids, and bolt-down security.
