System Overview

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Drain allows rainwater and surface water  to be drained away from the deck of a bridge. Drain is available in 2 versions :

  • rectangular drain in aluminium
  • spiral drain in stainless steel
It ensures safety for users and enhances the sustainability of the strucures. Rainwater and surface water must be evacuated quickly expelled from the bridge.

Drain is an important element in the drainage of water from civil engineering structures with a roadway surface with a permeable macadam.

Prescription


Hydrocarbon covering commonly used for concrete support bridges is permeable, so water tends to accumulate and flow towards the interface sealing/surface course because of the tread. Water damages the macadam. There is a risk to damage the structure if there is a sealing defect so quick evacuation of water is necessary.  Installing a rainwater drain system consists of :

  • transversal drains depending on the traffic
  • longitudinal drains

It is possible to double the draining capacity by installing two drains side by side.

If you wish to know more about the drains implementation, you can adress here :

Centre des Techniques d‘Ouvrages d‘Art Bureau des ventes 46,
avenue Aristide Briand B.P. 100
92223 Bagneux Cedex France
Téléphone : 01 46 11 31 31 Télécopie : 01 46 11 31 69
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Drain alu

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System to drain rainwater from macadam pavings


Drain alu is available in three standard dimensions :


  • 15 x 30 mm
  • 20 x 40 mm
  • 30 x 50 mm

The system may be laid flat or on its edge. The units are supplied in standard lengths of 3000 mm. They are linked together using standard or purpose-made connection pieces.
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Drain alu accessories


  1. Junction sleeve
  2. Flat angle
  3. Flat T-piece

    The following accessories are available for installation on its edge :

  4. Angle on edge
  5. T-piece on edge

Example of application


Drain alu 20/40 laid flat
Ech. 1/1

  1. Drain alu 20/40
  2. Flow grooves
  3. Support
  4. Border
  5. Macadam
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Spiral stainless steel Drain

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Spiral stainless steel Drain 


Spiral stainless steel Drain is available in three standard dimensions :

  • Ø 20 mm
  • Ø 25 mm
  • Ø 32 mm

Other dimensions are available on request.
Standard length of the units : 5000 mm.
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The connection between drains are made by interlocking a length of 50 mm.

Example of application


Spiral stainless steel Drain Ø 20

Ech. 1/1

  1. Spiral stainless steel Drain Ø 20
  2. Support
  3. Border
  4. Macadam
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