MarshExcDT

Last updated: 2021-02-12

Inserts marsh excavation links from a defined target surface (MARSH) up to a different target surface (EXIST) based on Wisconsin DOT standard depth tables.

Inserts links that represent the area of marsh excavation.

The first step the subassembly takes is to determine the location of the Marsh Excavation intercept location on Target Surface 1. This is a distance, measured outward from the attachment point, where the marsh excavation link intercepts Target Surface 1. To determine this distance, the maximum depth between Target Surface 1 and Target Surface 2 is computed between user specified offsets, measured from the Inside Offset Used to Obtain Marsh Depth and Outside Offset Used to Obtain Marsh Depth. Once the maximum depth value has been determined, the parameter defining the marsh intercept distance value is determined, based on parameters set for Marsh Intercept Distance Value with Max Depth 0-10', Marsh Intercept Distance Value with Max Depth 10-14', etc. If the determined depth is greater than 30', theFixed Intercept Distance Value will be used. User has the option of overriding this marsh intercept distance value assignment by setting the Fixed Marsh Excavation Intercept Distance parameter to Yes and entering a user defined value for this distance or assigning a target object to define the intercept location.

Once the Marsh Intercept location on Target Surface 1 has been determined, a link is inserted downward until it intercepts Target Surface 2, using the slope specified.

The attachment is at the slope intercept point of the daylight link.

In layout mode, this subassembly displays a links projecting from a point 5 feet below the baseline profile upward using the slope of the marsh excavation link.

Info: All dimensions are in feet unless otherwise noted. All slopes are in run-over-rise form (for example, 4:1) unless indicated as a percent slope with a "%" sign.

Parameter Description Type Default
Side Specifies which side to place the subassembly. Left/Right Right
Slope of Marsh Excavation Link Specifies the slope of the link inserted from Target Surface1 to the intersection with Target Surface2. Positive values slope down and inward, while negative values slope down and away. Slope 0.25:1
Inside Offset Used to Obtain Marsh Depth Specifies the inside offset to use to obtain the maximum depth of Marsh. Offsets measured from baseline. Positive values are to the right of the baseline and negative values specify offsets to the left of the baseline.   0
Outside Offset Used to Obtain Marsh Depth Specifies the outside offset to use to obtain the maximum depth of Marsh. Offsets measured from baseline. Positive values are to the right of the baseline and negative values specify offsets to the left of the baseline.   50
Fixed Marsh Excavation Intercept Distance This parameter specifies whether a fixed intercept distance value should be used, versus a computed value. Yes\No No
Fixed Intercept Distance Value Fixed distance from attachment point used to determine the marsh excavation intercept location. Numeric 2.0
Marsh Intercept Distance Value with Max Depth 0-10' Distance from the attachment point to the marsh excavation intercept location when the maximum marsh depth between the defined offsets is between 0 and 10 feet. Numeric, positive 0.0
Marsh Intercept Distance Value with Max Depth 10-14' Distance from the attachment point to the marsh excavation intercept location when the maximum marsh depth between the defined offsets is greater then 10 feet and less then or equal to 14 feet. Numeric, positive 2.0
Marsh Intercept Distance Value with Max Depth 14-18' Distance from the attachment point to the marsh excavation intercept location when the maximum marsh depth between the defined offsets is greater then 14 feet and less then or equal to 18 feet. Numeric, positive 4.0
Marsh Intercept Distance Value with Max Depth 18-22' Distance from the attachment point to the marsh excavation intercept location when the maximum marsh depth between the defined offsets is greater then 18 feet and less then or equal to 22 feet. Numeric, positive 6.0
Marsh Intercept Distance Value with Max Depth 22-26' Distance from the attachment point to the marsh excavation intercept location when the maximum marsh depth between the defined offsets is greater then 22 feet and less then or equal to 26 feet. Numeric, positive 8.0
Marsh Intercept Distance Value with Max Depth 26-30' Distance from the attachment point to the marsh excavation intercept location when the maximum marsh depth between the defined offsets is greater then 26 feet and less then or equal to 30 feet. Numeric, positive 10.0

This section lists the parameters in this subassembly that can be mapped to one or more target objects, such as a surface, alignment, or profile object in a drawing.

Parameter Description Status
Target Surface1 Name of the Surface representing the existing terrain. The following object types can be used as targets for specifying this surface: surfaces. Required
Target Surface2 Name of the Surface representing the Marsh layer. The following object types can be used as targets for specifying this surface: surfaces. Required
Offset May be used to override a fixed marsh excavation intercept offset value. The following object types can be used as targets for specifying this offset: alignments, polylines, feature lines, or survey figures. Optional

None

Point/Link/Shape Codes Description
P51 Marsh_Daylight  
P52 Marsh_Bottom  
L19 MarshEx_Top  
L20 MarshEx Bottom of Marsh Excavation
L21

MarshEx

LBLMarsh

Bottom of Marsh Excavation

Code for optional slope labeling of link

S11 MarshEx Marsh Excavation