Transcript 2003 mtg Hydrology and Hydraulics.pps

AASHTO
Subcommittee on Design
Boston, Massachusetts
June 12, 2003
Report from
Task Force on
Hydrology and Hydraulics
6/12/2003
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Highway Drainage Guidelines
Model Drainage Manual
• 2003 HDG and MDM are forwarded to SOD
– HDG new Chapter 15 balloted in 2002.
• Roy Jorgensen Associates, Inc., assisted Task Force.
• Technical update by the Task Force members.
• Very high quality professional documents.
– HDG: 15 chapters. Dual Units.
– MDM: 21 chapters. SI and US Customary editions.
– H&H Glossary included with both HDG and MDM.
6/12/2003
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On-going Research Projects
24-7(2)
24-14
24-15
24-16
25-12
21-07
24-18
24-19
24-20
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Countermeasures
Scour at Contracted Bridge Sites
Bridge Scour in Cohesive Materials
Channel Migration
Wet Detention Pond Research
Development of Portable Scour Measuring Equipment
Countermeasures to Protect Bridge Abutments
Environmentally Sensitive Channel and Bank Protection
Prediction of Scour at Bridge Abutments
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On-going Research Projects
Continued
24-07(146)
Development of Software Verification Protocol for
H&H Models
15-24 Hydraulic Loss Coefficients for Culverts
24-23 Riprap Design Criteria, Specifications, and Quality Control
24-24 Criteria for Selecting Hydraulic Models
24-25 Risk-based Guidelines for Determining the Need for
Investigation of Unknown Bridge Foundations
24-26 Effects of Debris on Pier Scour at Bridges
24-8
Scour at Bridge Foundations Research Needs. Projects funded
FY98: 3 projects 24-14, 24-15, 24-16
FY01: 3 projects
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2005 Problem Statements to be
Submitted by H&H Task Force
• Time Rate of Scour at Wide and Skewed Bridges
• Coordinated Update of Rainfall Maps in United States (NOAA/NWS
moving too slowly. Funding as NCHRP project will help)
• Effects of Fractured or Degradable Rock on Pier Scour at Bridges
• Procedure for Determination of Joint Probability of Design Peak Flows
at Stream Confluences
• Development of Bench Test Method for Determining Manning’s nvalue for Culverts
• Effects of Riprap on Fish Habitat
• Evaluation of Long-Term Performance of Stormwater BMPs.
6/12/2003
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Problem Statements Drafted
Scour at Bridge Foundations-- Research Needs
Development of a Specification to Mitigate Hydroplaning
Effects
Develop Hydraulically Efficient Bridge Rail
Development of a Prediction Model for Ice Jam Formation
In-Situ Scour Measuring Device
Integration of Water Quality and Drainage Structure Design
Coastal and Tidal Waterway Stability and Scour
Turbidity and Wash Load Effect on Scour Depth
6/12/2003
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2008 HDG and MDM
• Technical updates
– Capture changes in HDSs, HECs, and software
– Preliminary list of enhancements is available
– HDG new topics: MS4 guidelines, workflow, groundwater,
hydroplaning.
– HDG and MDM: Chairs are working on lists of enhancements.
• Improve usability
– Easier to use
– Increase sales
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Task Force Membership
Region 1
Maryland *
Pennsylvania **
Vacant
Region 2
Arkansas
Florida
North Carolina
South Carolina
Virginia
* Chair
** Vice Chair
Region 3
Illinois
Indiana
Kansas
Minnesota
Region 4
Alaska
California
Hawaii
Idaho
Oklahoma
South Dakota
Texas
Utah
Wyoming
Other
Ontario, Quebec
FHWA, AASHTO Liaison
6/12/2003
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Task Force Participation
Year
1990
1991
1992
1993
1994
1995
1996
6/12/2003
Spring
17
14
15
16
19
18
17
Fall
17
16
16
13
18
18
14
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|
|
|
|
|
|
|
Year
1997
1998
1999
2000
2001
2002
2003
Spring
20
16
17
18
18
17
17
Fall
16
17
17
18
17
19
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Special Recognition
Phil Thompson
FHWA Secretary to Task Force 1989 - 2003
Retiring June 2003
Phil has provided 14 years of dedicated and
distinguished service to the Task Force.
The FHWA will appoint a new secretary soon.
6/12/2003
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