Overview

Underground precast drainage inlets and catch basins are among the most widely used drainage products in the market today to collect excess stormwater runoff from roofs, sidewalks, parking lots, and paved streets.

Features & Benefits
  • Modular Construction
  • Base/Bottom Section
  • Knock-outs and Block-outs
  • Riser Sections
  • Top Sections
  • Frames and Grates
  • Rings and Covers
  • 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
  • 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
  • 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
  • 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
Specs & Guides

Name: Type 1L Catch Basin WSDOT 2′-4″ x 2′-8″

Model: Type 1L Catch Basin WSDOT

Material: Concrete

Height: 3’ 2”

Width: 2’ 4”

Length: 2’ 8”

Weight: 2880 lb


Downloads

PDF: 162-TYPE-1L-CATCH-BASIN-RISER-SDOT-B-1A.pdf

DWG: 162-manholes__catch_basins-TYPE1L-1.dwg

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