33 0530 - Culverts, Manholes and Structures


Neenah Foundry

Neenah Foundry Company
Neenah is THE name in manhole covers and frames, offering a broad selection of frames and covers, pressure relief valves, flanged flap gates, shear gates, and automatic drainage gates. Our exclusive line of products with lifting assistance is available in manholes and hatches and significantly reduces lifting strain.


Royal

Royal Enterprises America
Royal Enterprises America™ has been protecting today by building for tomorrow for the last quarter century. We provide reinforced concrete pipe, a complete line of water treatment solutions and utility infrastructure products. We serve the communities we work, live, and play by providing the highest quality products to help protect resources.


SlipNOT

SlipNOT® Metal Safety Flooring  Specs  CAD
SlipNOT® manufactures slip resistant underground vault covers that can be applied to gas, electric, water and telephone frames, among others.SlipNOT® vault covers are approved and used by cities such as: Los Angeles, Seattle, New York, San Francisco, Portland and many more. SlipNOT® transforms existing manhole covers by coating existing material with our high friction surface.


Smith Midland

Smith-Midland Corp. (Mid-Atlantic, Carolinas only)
Smith-Midland's maintenance-free precast concrete utility products provide quality, economy and permanence. We produce manholes and junction boxes in a wide range of standard and custom sizes, details and fit. Precast pad mounts take less time and site prep than poured-in-place. Utility companies across the Mid-Atlantic have standardized on our pad mounts for quality and dependability.


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See also:
03 4100 - Non-Architectural Precast Concrete - typically structural elements
32 3400 - Prefabricated Bridges



Neenah Foundry

Neenah Foundry Company
Neenah is THE name in manhole covers and frames, offering a broad selection of frames and covers, pressure relief valves, flanged flap gates, shear gates, and automatic drainage gates. Our exclusive line of products with lifting assistance is available in manholes and hatches and significantly reduces lifting strain.



Royal

Royal Enterprises America
Royal Enterprises America™ has been protecting today by building for tomorrow for the last quarter century. We provide reinforced concrete pipe, a complete line of water treatment solutions and utility infrastructure products. We serve the communities we work, live, and play by providing the highest quality products to help protect resources.



SlipNOT

SlipNOT® Metal Safety Flooring  Specs  CAD
SlipNOT® manufactures slip resistant underground vault covers that can be applied to gas, electric, water and telephone frames, among others.SlipNOT® vault covers are approved and used by cities such as: Los Angeles, Seattle, New York, San Francisco, Portland and many more. SlipNOT® transforms existing manhole covers by coating existing material with our high friction surface.


Smith Midland

Smith-Midland Corp. (Mid-Atlantic, Carolinas only)
Smith-Midland's maintenance-free precast concrete utility products provide quality, economy and permanence. We produce manholes and junction boxes in a wide range of standard and custom sizes, details and fit. Precast pad mounts take less time and site prep than poured-in-place. Utility companies across the Mid-Atlantic have standardized on our pad mounts for quality and dependability.


 

Related Associations and Reference Organizations