General

• Built on AutoCAD: Runs in AutoCAD versions 2009 to 2000 as well as AutoCAD Map, LandDesktop and Civil3D and on IntelliCAD 6.4
• Project Setup: Flexible data storage methods
• Drawing Cleanup: Fix common drafting errors
• Drafting Enchancements: Handy tools for working in AutoCAD such as Join Nearest, Shrinkwrap Entities, Polyline Utilities, Drawing Inspector, Layer Inspector and Twist Screen
• Data Compatibility: Supports industry standard LandXML and scores of specific data conversions

Surfaces

• Build Surfaces: By triangulation or rectangular grids
• Contouring: One step triangulate and contour from 3D entities as well as contouring from surface files
• Slope Analysis: Label and report surface slopes at selected points and slope zone analysis

Watersheds

• Watershed Analysis: Watershed delineation, ponding analysis, and real-time inspector for flows and drainage areas
• Runoff Tracking: Draws 3D flow lines that follow the surface model
• Peak Flow: Calculate peak flow by various methods from runoff parameters of storm event, drainage area, time of concentration and runoff coefficients
• Hydrographs: Route hydrographs from multiple watersheds through ponds and channels using TR-20

Hydraulic Structures

• Pond Sizing and Design: Detention pond sizing, bench and valley pond design, stage-storage calculation and graphs
• Spillway, Weir, Orifice, Culvert, Channel Design: Routines to design the dimensions and flows for structures plus reports and drafting for them
• Multiple Outlet Design: Combines orifices, weirs, drop pipes, culverts and user-defined outlets to design the overall stage-discharge
• Stage-Storage and Stage-Discharge: Routines to input, edit, report and draw

Sewer Networks

• Define Inlets, Structures, Pipes, Storm Events: Setup libraries with parameters for these network components
• Layout Structures and Pipes: Place structures and set pipe connections
• DTM-Based Runoff: Calculates drainage area, time of concentration and weighted runoff coefficent from inlet location on surface model. DTM also used to figure minimum cover for pipes
• Analyze Flow: Calculate inlet intercepted and bypass flows, gutter spread and depth, pipe flow depth and velocity, and hydraulic and energy grade lines
• Size Pipes and Set Inverts: Apply flow analysis to have program set pipe size and/or invert elevations
• Collison Conflicts Check: Reports any collisions between networks within specified tolerance
• Draw Sewer Network: Draw structures and pipes in plan view, in 3D using 3D Faces and in profiles

Companion Programs

• Carlson SurvCE: Data collection for Windows CE and Pocket PC
• Carlson Field: Take Carlson and AutoCAD to the field for data collection and stakeout with total stations and GPS
• Carlson Takeoff: Construction Estimating for earthworks, subgrades, material quantities, strata quantities and trench networks
• Carlson  Point Clouds: Process laser scan data to generate models, breaklines and points
• Carlson Natural Regrade: Design stable land surfaces that follow natural hydrologic and geomorphology principles
• Carlson Geology: Models drillholes and strata structures and attributes