Manhole Cover Designs - Sewer and Drain Grates Explained #3544321 (License: Personal Use)

The image displays two standard municipal manhole cover designs in black-and-white vector style. The left cover features vertical parallel slats, typical for stormwater drains to allow rapid water passage while blocking debris. The right cover uses a diamond-pattern lattice with a central rectangular plaque labeled “SEWER,” indicating its use for wastewater systems and aiding quick visual identification by utility crews.

Used on infrastructure, civil engineering, or municipal services web pages; supports educational content about urban utilities, public works, or safety standards. Matches user intent for technical diagrams, design references, or public information resources.