Location: Snohomish County, WA
Owner: Washington State Department of Transportation
OCI was responsible for the Drainage Design and Temporary Sediment and Erosion Control (TESC) Design for the SR 9/92 Intersection Improvements Design Build Project in Snohomish County, WA. The main elements of the proposed development consist of widening SR 9 north of the intersection and widening SR 92 east of the intersection. A new signal system was added at the intersection to accommodate the widening. Improvements to the existing drainage system and stormwater quality were also addressed by constructing a detention pond, using natural dispersion facilities and Filterra systems for enhanced treatment and oil control. Specifically, OCI was in charge of the TESC Plans, TESC Narrative, Conveyance and BMP sizing, Water Quality Monitoring Plan, Drainage Plans, Hydraulic Report, Drainage Existing Conditions Survey, Downstream Analysis, and Special Provisions.

Service Details >>
- Stormwater Management and Design
- Stormwater Detention, Infiltration, and Treatment Design
- Hydrologic and Hydraulic Modeling
- Stormwater Pollution Prevention Plan (SWPPP) and Narrative
- Temporary Erosion and Sediment Control (TESC) Plans
- Green Streets and On-Site Stormwater Management Approaches
- Bridge Scour Analysis
- Highway Runoff Dilution and Loading Stormwater (HI-RUN) Model
- Culvert Analysis and Design


Deepa leads Osborn Consulting’s Transportation Drainage practice and brings experience focused on surface water engineering and modeling. Deepa has worked on several design build (WSDOT and Sound Transit) and local agency stormwater projects. Her main focus has been on transportation drainage design, hydrologic and hydraulic modeling and analysis, neighborhood drainage improvements, stormwater planning and design projects including project ranking and prioritization, temporary erosion and sediment control design, environmental compliance involving permit coordination, compliance regulation (NPDES and Sewer Discharge Permits), and field inspections. Deepa has excellent record of meeting client schedules and completing work with a high degree of accuracy and competence. She is currently the co-chair for the ASCE Seattle Section Water Resources Committee.
OCI Shareholder and Board Member
Joined OCI: 2008
Education: MS in Environmental Systems Engineering, University of Regina
Licenses and Certifications: PE in Washington State, Certified Erosion and Sediment Control Lead (CESCL), WSDOT Highway Runoff Manual (HRM) Trained, WSDOT Fish Passage and Stream Restoration Design Training
Associations: ASCE, WTS
HOBBIES & INTERESTS
Deepa likes to spend her free time catching up on TV shows and movies. She enjoys a good masala Bollywood movie any day. Originally from the southern part of India, Deepa loves travelling and visiting places, listening to her daughter talk non-stop about football or any other sports for that matter, and craves spicy food from any cuisine.