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HYDINFRA -- Mn/DOT’s Hydraulic Infrastructure Database and Illicit Discharge Inspection. Bonnie Peterson, HYDINFRA Coordinator Mn/DOT Bridge Hydraulics . HYDINFRA is Mn/DOT’s Hyd raulic Infra structure Database. HYDINFRA ’s Purpose:.

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hydinfra mn dot s hydraulic infrastructure database and illicit discharge inspection
HYDINFRA -- Mn/DOT’s Hydraulic Infrastructure DatabaseandIllicit Discharge Inspection

Bonnie Peterson,

HYDINFRA Coordinator

Mn/DOT Bridge Hydraulics

hydinfra s purpose
HYDINFRA’s Purpose:

Manage information about storm drainage system components, including:

  • Pipes
  • Hydraulic Structures
  • Special Hydraulic Structures
  • Ponds
  • Structural Pollution Control Devices (SPCDs)
  • Ditches
  • Outfalls
  • Illicit Discharge
ms4 changes to hydinfra
MS4 changes to HYDINFRA:
  • Ponds, SPCDs and Ditches
  • Outfalls and Illicit Discharge Inspection
inputs for mn dot s illicit discharge data development
Inputs for Mn/DOT’sIllicit Discharge Data Development:
  • AMEC/Bonestroo’s Illicit Discharge Data Form for Mn/DOT Metro’s MS4 Permit
  • CWP’s IDDE Guidance Manual
  • MS4 Permit, Page 9
slide6
MS4s must develop, implement and enforce a program to detect and eliminate illicit discharges (with bmps and goals):
  • With a storm sewer map that has:
    • Ponds, streams, lakes, wetlands in our system
    • SPCDs in our system
    • All Pipes with 24” diameter at minimum but “all conveyances” is requested.
    • Outfalls – outlets to others’ storm systems (not diffuse flow)
  • Prohibit non-stormwater discharges and enforce.
  • Program to “detect non-stormwater discharges including dumping”
  • Inform employees, business and public of hazards of improper waste disposal and illegal discharge.
  • (Other mostly clean waters sources are not included unless identified as a problem. Residential car washing, street washing and fire-fighting water plus cleaner water sources aren’t included in illicit discharge.)

MS4 Permit Requirements for Illicit Discharge, pg 9 of permit

slide7
Illicit Dischargeis a discharge or deposit of polluting materials, liquid or solid, that can be transported to natural waterways.
hydinfra inspectors
HYDINFRA Inspectors
  • Student Workers
  • Maintenance People
  • Consultants
  • Long-Term HYDINFRA Inspectors
illicit discharges to mn dot
Illicit Discharges to Mn/DOT:
  • Look for:
    • Unexpected pipes coming into the highway storm drain system.
    • Pipes flowing when storm drains shouldn’t be.
  • HYDINFRA can also record deposits of dumped or otherwise deposited polluting materials.
if mn dot inspectors find an illicit discharge
If Mn/DOT Inspectors find anIllicit Discharge:
  • Report it to Area Maintenance Supervisor within 24 hours for follow-up.
  • Accidental chemical spills by trucks are not reported as Illicit Discharge, but are logged by Dispatch and forwarded to MPCA Duty Officer and cleaned up by trucking company’s contractor. Mn/DOT Maintenance does emergency containment.
data access methods
Data Access Methods

HYDINFRA

Database

Oracle Server

Forms

Reports

ArcView GIS