25 May 2005
Design. Drainage layers and subsurface drains will
the requirements of UFC 3-230-06A.
Design Responsibilities. The Government shall provide guidance for the
design of the storm water collection system by the D-B Contractor in Section 01016,
Detailed Technical Requirements, and/or in the Government-furnished design analysis.
Guidance by the Government should include:
The area to be served by the drainage system construction or
modification, including the area and probable use of future expansion
Design storm recurrence
Areas where ponding is permitted and any limitations
The type of pipe and joints permitted
Aircraft loading for inlet design
Facilities for collection and handling of deicing compound and fuel
Non-point source runoff collection and treatment criteria (if any)
Open channels or natural water courses are permitted only at the airfield
periphery, well removed from aircraft traffic areas (UFC 3-230-15FA).
Deicing runoff collection facilities should be provided (UFC 3-260-01).
Separate drainage and containment should be provided in areas with high
potential for fuel spills (TM 5-82001/AFM 88-5).
The drainage system should allow for future expansion
The storm frequency for drainage system design is different for each of
the three services. This design parameter must be included in the RFP as a basis for
Contractor design. Contact USACE-TSC, Air Force MAJCOM, or Navy EFD for the
required design storm frequency for each project.
Locate storm water detention and retention ponds, if required, away from
the airfield to the extent practical (ITG 02-04, Airfield/Heliports Surface Drainage
Design, 30 September 2002).
Conduct a system capacity assessment to assure that the design
discharge does not exceed the downstream drainage system capacity.