Median, Type 4 (Flat bottom ditch)

Adhoc Name: Type 4
Description: Median, Type 4 (Flat bottom ditch)

Typical Section showing variables

ADHOC DESCRIPTIONS

Flat Bottom Ditch Option 1. A fixed slope at a fixed distance with a flat slope at a fixed distance from Roadway A. Roadway B ties to the flat ditch bottom with a straight-line tie.

Applicable Adhocs:
Design Side (L or R) - Choose which side to use for “Roadway A”, Left (L) or Right (R) roadway.
Design Option Number - Use 1 for Option 1
Fixed Distance - Distance measured in the horizontal direction from Roadway A to end the fixed slope.
Fixed Slope - Slope value in a Rise:Run format used to draw the Roadway A side of the Flat Bottom Ditch.
Ditch Bottom Width - Width of the proposed ditch bottom.

Flat Bottom Ditch Option 2. A fixed slope to a point located by a line in dgn (Median Designator Line) with a flat slope at a fixed distance from Roadway A. Roadway B ties to that ditch bottom with a straight-line tie.

Applicable Adhocs:
Design Side (L or R) - Choose which side to use for “Roadway A”, Left (L) or Right (R) roadway.
Design Option Number - Use 2 for Option 2
Fixed Slope - Slope value in a Rise:Run format used to draw the Roadway A side of the Flat Bottom Ditch.
Ditch Bottom Width - Width of the proposed ditch bottom.

Flat Bottom Ditch Option 3. A fixed slope to an elevation (special ditch profile) with a flat slope at a fixed distance from Roadway A. Roadway B ties to that ditch bottom with a straight-line tie.

Applicable Adhocs:
Design Side (L or R) - Choose which side to use for “Roadway A”, Left (L) or Right (R) roadway.
Design Option Number - Use 3 for Option 3
Special Profile Name - Name of profile used to set the elevation of the bottom of the Flat Bottom Ditch.
Fixed Slope - Slope value in a Rise:Run format used to draw the Roadway A side of the Flat Bottom Ditch.
Ditch Bottom Width - Width of the proposed ditch bottom.

Flat Bottom Ditch Option 4. A slope at a fixed distance to an elevation (special ditch profile) with a flat slope at a fixed distance from Roadway A. Roadway B ties to that ditch bottom with a straight-line tie.

Applicable Adhocs:
Design Side (L or R) - Choose which side to use for “Roadway A”, Left (L) or Right (R) roadway.
Design Option Number - Use 4 for Option 4
Special Profile Name - Name of profile used to set the elevation of the bottom of the Flat Bottom Ditch.
Fixed Distance - Distance measured in the horizontal direction from Roadway A to end the fixed slope.
Ditch Bottom Width - Width of the proposed ditch bottom.

Flat Bottom Ditch Option 5. A slope to a point located by a line in dgn (Median Designator Line) to an elevation (special ditch profile) with a flat slope at a fixed distance for Roadway A. Roadway B ties to that ditch bottom with a straight-line tie.

Applicable Adhocs:
Design Side (L or R) - Choose which side to use for “Roadway A”, Left (L) or Right (R) roadway.
Design Option Number - Use 5 for Option 5
Special Profile Name - Name of profile used to set the elevation of the bottom of the Flat Bottom Ditch.
Ditch Bottom Width - Width of the proposed ditch bottom.

Flat Bottom Ditch Option 6. A fixed slope to an elevation (special ditch profile) from Roadway A. A fixed slope to an elevation (special ditch profile) from Roadway B. Tie the slopes with a straight-line tie.

Applicable Adhocs:
Design Option Number - Use 6 for Option 6
Special Profile Name - Name of profile used to set the elevation of the bottom of the Flat Bottom Ditch.
Fixed Slope - Slope value in a Rise:Run format used to draw the Roadway A side of the Flat Bottom Ditch.

Flat Bottom Ditch Option 7. A fixed distance slope to an elevation (special ditch profile) from Roadway A. A fixed distance slope to an elevation (special ditch profile) from Roadway B. Tie the slopes with a straight-line tie.

Applicable Adhocs:
Design Option Number - Use 7 for Option 7
Special Profile Name - Name of profile used to set the elevation of the bottom of the Flat Bottom Ditch.
Fixed Distance - Distance measured in the horizontal direction from Roadway A to end the fixed slope.

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