VI.  Reservoir Form

Reservoir Form (Reservoir)

1   Location  (Reservr.Lid)                      Alphanumeric 8
     NWS location identifier.

2   Name  (Reservr.Name)                         Alphanumeric 20     
     The name of the reservoir.  Use the official name of the reservoir.  Avoid abbreviations if possible.

3   Type  (Reservr.Type)                         Alphanumeric 10     
     The type of dam.  Typical entries for this field include: Earthen, Concrete, Levee, Gravity, and
     Arch.
4   Uses  (Reservr.Uses)                         Alphanumeric 8
     This field contains a collection of one character codes indicating the uses of the reservoir/dam. 
     Multiple entries are concatenated together, e.g. FH.  The following entries are permitted:
          F - Flood Control
          H - Hydroelectric
          L - Low Flow Augmentation
          N - Navigation
          R - Recreation
          W - Water Supply

5   Owner (Reservr.Owner)                        Alphanumeric 10     
     The owner of the reservoir.  Typical owners include the Corps of Engineers and the Bureau of
     Reclamation.  When specifying this field, use the same conventions for identifying the owner as
     were used when specifying the owner in other datasets, such as the gage owner, DCP owner, etc.

6   Impound Date  (Reservr.Impounded)            Date      
     This field gives the date the reservoir initially started storing water, using the following format:
     mm/dd/yyyy.

7   Gates  (Reservr.Gates)                       Numeric   
     The total number of gates on the associated dam are given in this field.

8   Max Surcharge  (Reservr.Surchg)              Numeric
     This values gives the volume of water in hundreds of acre-feet which exists between the water level
     at flood pool and the water level at conservation pool.  Mathematically, it is the difference between
     the storage at flood pool minus the storage at conservation pool.  It represents the volume of water
     which is available for flood control purposes to pass the inflow design flood through the reservoir.  

9   Top Elev  (Reservr.Top)                      Numeric   
     The elevation of the top of the dam in feet NGVD.

10  Sill Elev  (Reservr.Sill)                    Numeric   
     The elevation of the sill of the dam in feet NGVD.  For gated dams, this is the elevation at which
     the bottom of the gates rest.  For uncontrolled dams, this is the elevation of the spillway.

11  Reservoir Elev  (Reservr.Relev)              Numeric     
  
     The elevation of the base of the dam in feet NGVD.

12  Flood Pool  (Reservr.Floodpool)              Numeric
     The elevation of the top of the flood pool in feet NGVD.  This elevation is the level of the reservoir
     for use in reducing downstream flooding.  Therefore, it may be the same as the spillway elevation.

13  Spillway  (Reservr.Spillway)                 Numeric
     The bottom elevation of the spillway in feet NGVD.

14  Conservation  (Reservr.Conserpool)           Numeric
     The elevation of the top of the conservation pool in feet NGVD.  This level represents the level of
     the reservoir for the project's authorized purposes, other than flood control.  For may reservoirs,
     this is the same as the recreation pool.

15  Dead Pool  (Reservr.Deadpool)                Numeric
     The elevation of the top of the dead pool in feet NGVD.  This is the elevation of the reservoir when
     all possible water is drained from it.  It is sometimes equated with the sediment pool.  This may be
     the same as the drawdown elevation.


Reservoir Form (Curve)

     Note: The capacity information allows scrolling through the multiple entries.

16  Elev  (Rescap.Elev)                          Numeric
     An elevation of the water level in feet NGVD for the associated storage value.  The 
     elevation values are given for an associated storage value, which is as described below.  Multiple
     pairs of elevation height-storage volume values are given to form a storage-elevation table.

17  Storage  (Rescap.Storage)                    Numeric   
     The storage in hundreds of acre-feet for the associated elevation value.