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“We Bring Engineering to Life” 3-D Stream Restoration Design, Monitoring and Beyond David Bidelspach, PE - Stantec Consulting Greg Jennings, PE – NCSU.

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Presentation on theme: "“We Bring Engineering to Life” 3-D Stream Restoration Design, Monitoring and Beyond David Bidelspach, PE - Stantec Consulting Greg Jennings, PE – NCSU."— Presentation transcript:

1 “We Bring Engineering to Life” 3-D Stream Restoration Design, Monitoring and Beyond David Bidelspach, PE - Stantec Consulting Greg Jennings, PE – NCSU BAE Dan Clinton, PE – Town of Cary Barbara Doll, PE – NC Sea Grant

2 “We Bring Engineering to Life” We are living in a 3-D World  DESIGN  MODELING  RE-DESIGN – Design Iterations  CONSTRUCTION  MONITORING  BEYOND – What is next

3 “We Bring Engineering to Life” What is a 3-D Design  Eagle Point  Surv-CAD  Geo-Pak  Land Desktop  Autodesk Civil Series  RiverMorph?  HEC-RAS? - Manage Points - Define Alignments - Create Points from Alignments - Build Surfaces

4 “We Bring Engineering to Life”

5 What is a 3-D Design  Eagle Point  Surv-CAD  Geo-Pak  Land Desktop  Autodesk Civil Series  RiverMorph ?  HEC-RAS ?

6 “We Bring Engineering to Life” Benefits - of 3-D Design  Hydraulic Modeling is Not Limited  Easier to Create Design Revisions and Iterations –Better Estimate of Quantities –Optimization of Project Reaches –Constructability  Assist in Construction Stakeout  GPS Guided Construction Equipment – Good Check for On-site Stupidity During Construction

7 “We Bring Engineering to Life” 3-D Design – Existing Surface

8 “We Bring Engineering to Life” 3-D Design –Valley Slope

9 “We Bring Engineering to Life” 3D- Morph Table, Entrainment NCD River Course II

10 “We Bring Engineering to Life” 3-D Design – Constraints and Thalweg

11 “We Bring Engineering to Life” 3D – Design Beltwidth

12 “We Bring Engineering to Life” 3-D Design - Layout and Design

13 “We Bring Engineering to Life” 3D – Breaklines for Surface

14 “We Bring Engineering to Life” 3D – Layout and Design

15 “We Bring Engineering to Life” 3-D Design - Modeling Summary  Engineering to Check and Design –Sediment, Backwater, Velocity, & Shear Stress  HEC-RAS Limitations –1-D only cannot model actual flow around bends, in constrictions, or other 2-D, 3-D flows cannot model channel-floodplain interactions

16 “We Bring Engineering to Life” HEC-RAS ….. 3-D?

17 “We Bring Engineering to Life” HEC-RAS – 2 Geometry Files

18 “We Bring Engineering to Life” HEC-RAS

19 HEC-RAS

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25 3D & 2D Modeling

26 “We Bring Engineering to Life” 3D – Simulations for Design

27 “We Bring Engineering to Life” Re-Design, Constructability

28 “We Bring Engineering to Life” Optimization

29 Optimization

30 3-D Construction ?

31 “We Bring Engineering to Life” 3-D Construction  Limited construction oversight  As-built conditions surveyed during construction  Efficient digging

32 GPS Construction Demo December 6th-7th 2006

33 “We Bring Engineering to Life”

34 Top Con GPS Hardware Installation 12-04-06 ~ 8 hrs

35 “We Bring Engineering to Life” Traditional Cut Stake

36 “We Bring Engineering to Life” Traditional Laser Level Setup

37 “We Bring Engineering to Life”

38 GPS Sensors on Bucket and Stick

39 “We Bring Engineering to Life” GPS Sensors on Boom and Stick

40 “We Bring Engineering to Life” Nightly removal of GPS antennas

41 “We Bring Engineering to Life” GPS Demo

42 “We Bring Engineering to Life” GPS Display in Cab of Cat 325

43 “We Bring Engineering to Life”

44 GPS Rover and Grade Rodman

45 “We Bring Engineering to Life” 3-D Monitoring Data Analysis  Shows current condition of the project  Compares current condition to previous years  Shows how stream is functioning  Shows trends and direction

46 “We Bring Engineering to Life” 3D - Monitoring  Photo Documentation  Profile Analysis - 3D Surveys  Cross-sectional Analysis - 3D Surveys  Planform Analysis - CAD

47 “We Bring Engineering to Life” 3D – Surveys vs. 1-D Surveys

48 “We Bring Engineering to Life” 3D – Surveys vs. 1-D Surveys

49 “We Bring Engineering to Life” Example Photo Point Photo Point 19

50 “We Bring Engineering to Life” Photo Objectives in Plan View

51 “We Bring Engineering to Life” Profile Analysis  Utilize CAD Program if data collected with the use of a Total Station  Alignment set at as-built time –Allows for direct comparison of stationing –Alter alignment if channel migrates “significantly”  Record thalweg length annually  Survey at the thalweg based on stream feature

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54 Pool Length 84 ft to 71ft Pool Length 13 ft to 43 ft

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57 Pool Length 84 ft to 71ft Pool Length 13 ft to 43 ft

58 “We Bring Engineering to Life” Profile Analysis  Utilize CAD Program if data collected with the use of a Total Station  Alignment set at as-built time –Allows for direct comparison of stationing –Alter alignment if channel migrates “significantly”  Record thalweg length annually  Survey at the thalweg based on stream feature

59 “We Bring Engineering to Life” Profile Analysis  Plot –Thalweg –Water Surface –Bankfull (Design) –Bankfull (Depositional Bench) –Top of Bank –Vanes and other structures

60 “We Bring Engineering to Life” Creating Stationing from Survey Points  Create Stationing Based on a Baseline –Thalweg Baseline vs. Centerline Baseline  Exporting Points Based on a Baseline Alignment –Changing description keys for River Morph of other software programs –AutoCAD, Micro-Station, Eagle Point, Arc-View, and SurvCAD

61 “We Bring Engineering to Life” Profile from Baseline

62 “We Bring Engineering to Life” Using a Base Alignment

63 “We Bring Engineering to Life” Using a Base Alignment

64 “We Bring Engineering to Life” Profile from Thalweg

65 “We Bring Engineering to Life” Using the Stream Profile

66 “We Bring Engineering to Life” Example Profile

67 “We Bring Engineering to Life” Example Structure Profiles

68 “We Bring Engineering to Life” Surveying Stream Features

69 “We Bring Engineering to Life” Looking upstream at Cross Vane ~ Sta: 4+00 Surveying Stream Features

70 “We Bring Engineering to Life” Placement of Pin Flags Looking downstream at Cross Vane ~ Sta: 5+00

71 “We Bring Engineering to Life” Profile Analysis  Calculations –Lengths and Slopes of stream features From Excel / CAD –Spacing of stream features –Locations of features with respect to planform –Report Minimum, Maximum and Median for length, spacing and slope in summary table

72 “We Bring Engineering to Life” Cross-section Analysis  Utilize CAD Program if data collected has been collected with a Total Station  Alignment and stationing are set at as-built time –Allows for direct comparison of stationing –Allows for easier data collection

73 “We Bring Engineering to Life” Cross-section Analysis  Plot –Channel bed –End Pins –Bankfull Line –Top of Bank Line (if appropriate) –Survey Bank Profiles

74 “We Bring Engineering to Life” Cross-section Analysis  Calculations –Bankfull Area –Bankfull Width –Bankfull Mean Depth –Bankfull Maximum Depth –Floodprone Width –Width/depth Ratio –Entrenchment Ratio

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78 Cross-section Calculations  Notes of Caution –Area must be calculated based on the same datum year after year –Area can be calculated based on bankfull deposition but the standard should be the designed bankfull –Survey line must be consistent year after year

79 “We Bring Engineering to Life” Cross Section Location Correct X-Section Misplaced X-Section

80 “We Bring Engineering to Life” Planform Analysis  Utilize CAD Program if data collected on Total Station  Most variable of all measurements  Field measurements very difficult and most variable  Works best if as-built to designed underlain current monitoring

81 “We Bring Engineering to Life” Planform Analysis  Results –Radius of Curvature –Meander Wave Length –Channel Belt Width –Valley Length

82 “We Bring Engineering to Life” Planform Analysis

83 “We Bring Engineering to Life” Planform Analysis Radius Of Curvature

84 “We Bring Engineering to Life” Planform Analysis Belt Width and MeanderWavelength

85 “We Bring Engineering to Life” Planform Example Overlay As-build

86 “We Bring Engineering to Life” And Beyond ? “ The more I learn the less I know”

87 “We Bring Engineering to Life”

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93 Contact Information ? David Bidelspach Stantec – Raleigh NC 919-218-0864 David_Bidelspach@ncsu.edu David.Bidelspach@stantec.com


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