Geospatial data used for display purposes in HEC-RAS for levees, ineffective flow areas, are blocked obstructions are stored outside of the Cross Section block of information. A summary of additional cross section properties is summarized in Table B-4. Table B-4. Addition cross section properties options for the spatial data file.
Keyword
Value Type
Value
Levee records
BEGIN LEVEES:
None
Marks beginning of Levees object.
LEVEE ID:
String
Levee identifier. Corresponds to ID in LEVEE POSITIONS object on cross section.
SURFACE LINE:
Location array
Array elements contain 3D coordinates of levee profile points. Array concludes with END:
END LEVEES:
None
Marks end of Levees object.
Ineffective flow area records
BEGIN INEFFECTIVE AREAS:
None
Marks beginning of Ineffective Areas object.
INEFFECTIVE ID:
String
Ineffective area identifier. Corresponds to ID in INEFFECTIVE POSITIONS object on cross section. Concludes with an "END:".
POLYGON:
Location array
Array elements contain 2D coordinates of ineffective area polygon points.
END INEFFECTIVE AREAS:
None
Marks end of Ineffective Areas object.
Blocked obstruction records
BEGIN BLOCKED AREAS:
None
Marks beginning Blocked Obstructions object.
BLOCKED ID:
String
Blocked obstructions identifier. Corresponds to ID in BLOCKED POSITIONS object on cross section.
POLYGON:
Location array
Array elements contain 2D coordinates of ineffective area polygon points.