# weir.res

| Field                                                                                                                         | Description                                        |   Type  |    Unit    |  Default |       Range       |
| ----------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------- | :-----: | :--------: | :------: | :---------------: |
| [name](https://swatplus.gitbook.io/io-docs/~/changes/GiVD5ID0WVyRIAumaMy2/introduction/reservoirs/weir.res/name)              | Name of the reservoir weir record                  |  string |     n/a    |    n/a   |        n/a        |
| [numb\_steps](https://swatplus.gitbook.io/io-docs/~/changes/GiVD5ID0WVyRIAumaMy2/introduction/reservoirs/weir.res/numb_steps) | Number of time steps in day for weir routing       | integer |     n/a    |    24    |        1-24       |
| [disch\_co](https://swatplus.gitbook.io/io-docs/~/changes/GiVD5ID0WVyRIAumaMy2/introduction/reservoirs/weir.res/disch_co)     | Weir discharge coefficient                         |   real  |     n/a    |    1.0   |                   |
| <p><a href="weir.res/energy_co">energy\_co</a></p><p></p>                                                                     | Energy coefficient                                 |   real  | m^1/2 d^-1 | 150000.0 | 147000.0-153000.0 |
| [weir\_wd](https://swatplus.gitbook.io/io-docs/~/changes/GiVD5ID0WVyRIAumaMy2/introduction/reservoirs/weir.res/weir_wd)       | Width of weir                                      |   real  |      m     |    2.0   |                   |
| [vel\_co](https://swatplus.gitbook.io/io-docs/~/changes/GiVD5ID0WVyRIAumaMy2/introduction/reservoirs/weir.res/vel_co)         | Velocity exponent coefficient for bedding material |   real  |     n/a    |   1.75   |                   |
| [dp\_co](https://swatplus.gitbook.io/io-docs/~/changes/GiVD5ID0WVyRIAumaMy2/introduction/reservoirs/weir.res/dp_co)           | Depth exponent coefficient for bedding material    |   real  |     n/a    |    1.0   |                   |
