End Treatments

Flared Ends:

Flared ends connect to concrete pipe as inlets and outlets for storm water ponds and culverts under roadways and approaches. They come in a range of sizes for 300mm–1500mm concrete pipe and have sloped ends. For larger pipe sizes of 1650mm–2100mm pipe, a concrete box bevel with a cast in pipe adaptor is available.

Round grates are also available with and without a gate for pipe and flared ends. Round grates help to keep animals out and prevent debris from entering the storm system.

Flared End Drawing Library

Detailed dimensions are provided below for our Flared End products to assist with your design projects:

• 300 Flared End
• 375 Flared End
  
• 450 Flared End
  
• 525 Flared End
  
• 600 Flared End
  
• 675 Flared End
• 750 Flared End
• 900 Flared End
• 1050 Flared End
• 1200 Flared End
• 1350 Flared End
• 1500 Flared End

Headwall Advantages

Headwalls connect to concrete pipe/boxes at inlet or outlets for storm water culverts under roadways in order to control erosion. See below for recommended headwall based on maximum opening:

Type II – 450mm Reinforced Concrete Pipe (RCP)

11-13 – 600mm RCP

14-15 – 750mm RCP

16-20 – 1200mm RCP

26-28 – 1800mm RCP

26-28 Tall– 2400mm RCP or 1800 x 900mm Box 

Headwall Drawing Library

Detailed dimensions are provided below for our flared end products to assist with your design projects:

• Type I Headwall
• Type I – Ext Base Headwall
  
• Type II Headwall
  
• MOT Headwall
  
• 11-13 Headwall
  
• 14-15 Headwall
  
• 16-20 Headwall
  
• 26-28 Headwall
  
• 26-28 Tall Box Headwall
  
• 26-28 Tall Pipe Headwall