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Stormwater Management Program - Other Initiatives
Other Initiatives
Stormwater management has increased in complexity over the years.   As the deleterious effect of stormwater has been quantified and qualified, regulatory oversight has become more specific.  As a result, ODOT has launched several stormwater-specific initiatives.  They include:
 
  • The Stormwater Action Team (SWAT)
  • ODOT-DEQ Streamlining of Stormwater Management Plan (SWMP) Approvals for CWA Section 401 Water Quality Certification
  • ODOT Hydraulics Manual Chapter 14 (Water Quality) development
  • Asset Management: Inventory of ODOT owned engineered water quality BMPs, and development of Operations and Maintenance Manuals.
  • Water quality focused monitoring and research
 

Stormwater Action Team
 
The SWAT is the focus of ODOT, resource and regulatory agencies to develop a consistent program for managing highway runoff.  In May 2006, ODOT, FHWA, and the natural resource agencies embarked on a collaborative venture to promote improved stormwater management.  The SWAT has since successfully completed its effort.  One goal was to streamline permitting processes and to ensure that all parties are in agreement on permitting requirements. The natural resource agencies involved were:
 
  • National Marine Fisheries Service (NMFS),
  • Oregon Department of Environmental Quality (DEQ),
  • U.S. Fish and Wildlife Service (USFWS),
  • U.S. Environmental Protection Agency (EPA), and
  • Oregon Department of Fish and Wildlife (ODFW).

A comprehensive literature review conducted and was used to inform and direct the development of the technical guidance.  Discipline experts were also consulted during the development of the water quality and flow control (water quantity) design storm definitions.  The final selections of the design storms and elements of the BMP Selection Tool and User’s Guide and BMP Summary Reports were the result of consensus.  The products from the SWAT effort are used in both the Stormwater Management Plan Approval Streamlining and in the ODOT Hydraulics Manual.
 

Stormwater Management Plan Approval Streamlining
 
Highway projects that require Clean Water Act Section 404 permits need to receive CWA Section 401 Water Quality Certification from the Oregon DEQ.  Approval of the Stormwater Management Plan (SWMP) is usually a condition of the 401 Certification.  Streamlining the SWMP approval process was determined to be a way to reduce permitting delays, provide consistency in expectations and ensure water quality standards were met.  The original Memorandum of Agreement (MOA) was signed in 2007, and a revision completed to include SWAT efforts.
 

ODOT Hydraulics Manual
 
The Water Quality Chapter of the ODOT Hydraulics Manual provides the design criteria for a wide range of water quality treatment facilities, including those than can be used in a LID context. 
 
As new treatment techniques are developed, new BMPs or BMP modifications will be included in the Hydraulic Decision Deviation Process.  New types of BMPs proposed for projects are subject to a higher level of review within ODOT.  This ensures that there is enough supporting information on treatment effectiveness, that the design criteria are well thought out, and that the BMP can be monitored and evaluated for future inclusion in the Hydraulics Manual.


Asset Management of Water Quality Facilities

ODOT began installing engineered water quality treatment facilities in the mid 1970’s.  In the mid 1990’s the pace of construction picked up and ODOT now has over 150 engineered BMPs on the ground.  (Engineered BMPs are those that require a hydraulic analysis to support the size and design of the facility.)  In 2007, ODOT commissioned an inventory of the facilities as part of an effort to make sure that maintenance obligations and requirements are being met.  Maintaining the database of engineered BMPs is an ongoing effort.
 
Not included in the inventory are the innumerable non-engineered elements of the highway system that contribute to improving the quality of highway runoff.  Among these are:
 
  • Vegetated shoulders and side slopes,
  • Vegetated flat bottomed roadside ditches, and
  • Sediment traps to capture sanding material.
 
 
Asset Management of Pipe Outfalls

ODOT is currently gathering information on pipe outfalls discharging stormwater from ODOT highways within Phase I/II communities.
PHASE 1: Define Limits of DEQ Phase I/II communities (Completed)
PHASE 2: File Research - Identify construction plan sets within limits defined in Phase 1 (Completed)
PHASE 2a: File Research - Identify construction plan sets with drainage information (Completed)
PHASE 3: Outfall Data Collection using construction plans and GIS tools (In Progress)
 
Operations & Maintenance (O&M) Manuals 
 

Water Quality Focused Monitoring and Research

Water quality improvement management of highway runoff depends on information about runoff and treatment techniques used.  ODOT has funded several research projects associated with water quality in past years.  There is a current water quality research project examining copper speciation in highway runoff.  Reports on completed projects can be accessed at the ODOT Research Unit Website.
 
 
 
 
 

Contacts
Headquarters
William Fletcher - William.B.FLETCHER@odot.state.or.us
Water Quality/Resources Program Coordinator
(503) 986-3509
 
Jennifer Sellers - Jennifer.Sellers@odot.state.or.us
Environmental Program Coordinator
(503) 731-8523
 
Alvin Shoblom - Alvin.SHOBLOM@odot.state.or.us
Senior Hydraulics Engineer
(503) 986-3365
 
Region 1
William Fletcher - William.B.FLETCHER@odot.state.or.us
Water Quality/Resources Program Coordinator
(503) 986-3509

Region 2
William Fletcher - William.B.FLETCHER@odot.state.or.us
Water Quality/Resources Program Coordinator
(503) 986-3509

Region 3
William Fletcher - William.B.FLETCHER@odot.state.or.us
Water Quality/Resources Program Coordinator
(503) 986-3509

Region 4
William Fletcher - William.B.FLETCHER@odot.state.or.us
Water Quality/Resources Program Coordinator
(503) 986-3509

Region 5
William Fletcher - William.B.FLETCHER@odot.state.or.us
Water Quality/Resources Program Coordinator
(503) 986-3509

Resources


Stormwater Treatment Techniques and Strategies Resources
Hydraulics Manual (See Water Quality Chapter)
Hydraulic Design Deviation Process
ODOT Research Unit Website