Trench Drains For Airports

Airport trench drains require maximum load bearing capacity

Airport trench drains are used to keep airplane hangars, runways and operational facilities dry. There are a few main considerations when planning the drainage system for an airport. Airport drainage systems shall be strong enough to bear the load and weight of an aircraft while remaining functional, efficient and intact. Product choice depends on the size of the aircraft and area to be drained.

There are two generally accepted methods for airport drainage: Pre cast concrete trench drain systems or cast in place.


MacArthur Airport Swiftdrain Case Study

County airports

County airports generally call for a class D rating. 4” wide ductile iron grates with a sloped system are generally used. Because planes are smaller ductile iron grates are suitable. Load ratings are usually D or E.

Municipal airports

Municipal airports usually use cast or ductile iron grates such as 8” wide or 12” wide. Load ratings generally call for E or F. The runways may expect larger planes by the hangars so if only small private planes are expected sometimes these airports use a smaller system by the hangar. Sloped systems are generally used.

International airports

International airports call for large trench grates with bolt down mechanisms. They can be 12” wide or 14” wide and up. The grates generally have a larger open area to efficiently drain water flow In the event of rainy weather. The bolts ensure that the grates do not shift or get sucked up into the airplane. Larger Airports generally call for a class E or F rating. The channels may even be larger than a yard deep.

Fun fact: The first and second time trench grates were used was in an airport in England.

Airport trench drains generally require a bolting mechanism to stay secure. NF Trench Castings and Filcoten Fiber Reinforced Concrete are suitable for this application. Both lines are durable, highly functional and offer a high level of load strength achieving up to Class E load rating.

Swiftdrain 300 Trench Drain

  • intuitive design
  • heavy duty ductile iron bolted grates
  • fiber reinforced concrete channel
  • galvinized steel frames
  • pre sloped channels extendable to 180' of slope