| PROJ_NAME | Text | Project name |
| PHTKN | Text | Is there a photo available (yes|no) |
| GPSTKN | Text | Is there a GPS readin available (yes|no) |
| PROBL | Text | A description of the problem caused by the constriction |
| REACH_ID | Number | Reach ID (a number) |
| SEGMENT_ID | Text | Segment ID |
| RCHPTID | Text | Reach Point ID |
| Ph2SegID | Text | Primary key used to identify the record |
| CONST_TYPE | Text | Type of constriction |
| WIDTH | Number | Width of constriction in ft. |
| CHANNEL | Text | Is there a channel constriction? |
| FLOODPRONE | Text | Is there a floodprone constriction? |
