4′ Dia. Knockouts

Precast Manholes are versatile in the construction of buried structures. Manholes are often utilized at vault openings or pipe junctions to provide maintenance and inspection access to underground piping systems, meters, and facilities. Oldcaslte Infrastructure manhole sections are produced in quality controlled conditions to provide uniformity and performance unmatched in the industry. We offer a variety of manholes in standard and custom sizes with various coatings and design components for use in different applications. Additionally, sealed manhole systems are available, which can be built to specification. Access and service manholes are versital access points to various equipment and pipe connections. These manholes are strong enough for traffic applications, including in roadways, parking lots, and pedestrian paths. Custom and standard sizes are available. Depending on the application and project needs, these manholes are customizable with a variety of features.

• Modular Construction
• Modular Construction Base/Bottom Section
• Base/Bottom Section Lids, Rings, and Cover
• Lids, Rings, and Cover Manhole Coatings
• Manhole Coatings Grade Rings and Risers
• Grade Rings and Risers Cones
• Cones Flat Slabs
• Flat Slabs Block-outs and Cored Holes
• Block-outs and Cored Holes

• Offers immediate accessability to maintain and inspect the critical infrastructure
• Customizable sectional design
• Quick and easy install
• Offers immediate accessability to maintain and inspect the critical infrastructure
• Customizable sectional design
• Quick and easy install Provides housing for critical infrastructures
• Connection and access point for maintenance and inspection
• Cylindrical or rectangular available
• Integral floor (body slab) optional
• Available extended base bottoms increase stability
• Provides housing for critical infrastructures
• Connection and access point for maintenance and inspection
• Cylindrical or rectangular available
• Integral floor (body slab) optional
• Available extended base bottoms increase stability Cover and protect
• Maintenance and inspection accessibility
• Variety of sizes available
• Cover and protect
• Maintenance and inspection accessibility
• Variety of sizes available Water-based damp-proofing, epoxy-based chemical resistant, and other coating options are available upon request
• Water-based damp-proofing, epoxy-based chemical resistant, and other coating options are available upon request Elevate access opening covers to grade
• Available in rectangular and round shapes
• Variety of sizes available
• Elevate access opening covers to grade
• Available in rectangular and round shapes
• Variety of sizes available Section to reduce the manhole diameter to the cover and frame diameter
• Concentric or Eccentric shapes
• Variety of sizes available
• Section to reduce the manhole diameter to the cover and frame diameter
• Concentric or Eccentric shapes
• Variety of sizes available Typically used for very shallow manholes
• Large diameter manholes are covered with structural flat slab covers designed to resist the applied dead and live loads
• Variety of sizes available
• Typically used for very shallow manholes
• Large diameter manholes are covered with structural flat slab covers designed to resist the applied dead and live loads
• Variety of sizes available Offered in multiple locations to accommodate various connection sizes
• Cast-in block-outs and cut-in cored holes are generally placed in the base or riser sections in limited sizes
• Block-outs available in rectangular and circular shapes
• Offered in multiple locations to accommodate various connection sizes
• Cast-in block-outs and cut-in cored holes are generally placed in the base or riser sections in limited sizes
• Block-outs available in rectangular and circular shapes

Model: 4 DIA KO

Material: Concrete

Load Rating: sanitary, manholes

Measurement System:

Diameter: 4’

Weight: 3,100 lb

Downloads

PDF: LEX-CAT-4-FT-DIA-KOS-3925-Catalog-1-1.pdf