Guide to Civil 3D for Stream Restoration Engineering

A. Hydrological Analysis

  1. TR-55 Analysis 

(need to create reference to using object data with Map 3D)
(create reference to map 3d topologies)

            a. Watershed Delineation 
                1. Find Existing Topography (traditional survey cogo points, Google Earth, USGS Topo, Surface Metadata)

            b.  Land Use Delineation

                1. Imagery (NAIP, Google Earth)

                2. Attach Object Data to Land Use Delineated Polygons
                3. Export Polygons to Excel

                4. Assign Land Use in Via Excel Pull Down Menus

            c.  Soils GIS Data

                1. Download SHP files from NRCS Soils Data Map

                2. Create Additional Column for hydrologic soil grouping

                3. Import Soils Data into Map 3D

            d. Map 3D Topolology Analysis

            e.  Export Finished Topology Overlay to Excel

                1. vlookup Funciton

                2. Compute Overall Curve Number and Land Area

            f. NRCS TR-55 Program????

B. Hydraulical Analysis

    1.  HEC-RAS
        a. Create Sample Lines along Centerline Alignment

        b. Export Cross Section report in Reports Manager

        c. Assign Manning's Number to Existing Cross Sections

        d. Input hydrological analysis peaks flows.

        e. Generate WSE Profile and Export to Civil 3D

C. Design Proposed Stream Cross Section

    1. Analyze existing conditions of stream and existing stream type.

    2.  Use flowmaster to determine WSE for various frequency interval storm events.

D. Design Proposed Stream Centerline Alignment

1. Show to set up alignment properly.  Aiming tangents as riffles, pulling PVI's to change tangential direction.

2. Know how to move alignment if profiles are already set up.

2. Use (bankfull to bankfull) * 6 = 1 wavelength

1. Determine contraints for the stream.  (cut/fill at riffles/pools; sensitive areas to avoid; target location/elevation) 

2. Create dynamic block with automatic aligning to for quick real-time analysis of stream 

3. Create Fixed Tangent Curves; or add curves when adding alignment as polyline.

4. Analyze Stream Contraints (ex. longitudal wavelength = 6 * bankfull width

5. Curves between Tangents must not have a radius less than the width from centerline to edge of floodplain

E. Design Proposed Bankfull Profile

In order to build the stream, the profile and alignment will need to be referenced.  To minimize necessary calculations, the easiest way to automate the design process is by referencing the bankfull elevation.   If the riffle and pool cross sections are designed together correctly, the bankfull profile will be continuous without any abrubt changes.  The differing stream cross sections will join correctly in a continous fashion when the bankfull profile of the pool is equal to the pool depth plus riffle depth at the deepest location of the pool.

F. Excel Analysis

Width/Elevation Export

Create Imported Profiles

    1. Export Existing Profile into Excel
    2. Creating Proposed Long-Pro (longitudal profile)
    3. Importing Proposed Long-Pro

    4. Superimposing Profiles onto Stream Centerline Profile

G. Build Stream Assembly

Use Slope to Elevation Generic Subassembly

H. Width Relationship Geometric Corridor

Set up Dynamic Feature Line
Set up Target Parameters to Imported Profiles.

I. Construct Stream TINN Model Stream using a Feature Line Dependent Corridor

    1. Set up target parameters to profiles and dynamic feature lines

    2. Create Offset Alignments


J.  In-Stream Structures

    1. Pipe Networks

        a. Log and Rock Vanes Using Pipes

L.  Final Proposed Surface

F. Surfaces
   1. Stream Breaklines
   2. Creating Final Surface
   3. Remove Portions of a Surface
   4. Place external surfaces in drawing

M. Section Views

Program Workflow

Set alignment and bankfull profile manually >>>

Export Alignment and bankfull Profile to Excel >>>

User enters proposed stream cross section dimensions >>>

Set Left/Right Pools (set first curve which sets subsequent curves) >>>

(Future -- Allow Tweaks for TOPB start/stop; Pool begin/end) >>>

Create width/height tables for THWG;TOPB; BOTB >>>

Output width/height profiles to prn; change to txt  >>>

Ideally finishes with automated input process whereby prevous profiles are overwritten and all target parameters are held.

Create Width Corridor

Set Target Parameters Automatically (width profiles)

Automatically Derive Feature Lines and Name Them

Civil 3D Tips


Custom User Interface

Styles Creation and Tweaking

Civil 3D Obect Control by setting object layer names with four letter code ending

CAD Standard Naming Conventions

Map 3D Object Data

Profile Band Styles to Represent Pools and Riffles.

Alignment Band Styles

Showdrawingtips; aeccimportstyles; macrorecorder; show menu; hide ribbon; 


Before Large Storm Event

After Large Storm Event