The vendor is required to provide third party review and modeling services in review of drainage studies and improvement plans, and modeling services on an as-needed basis.
- Primarily support agency staff with the review of drainage studies for various development projects within the county.
- The drainage study review aims to verify that modeling techniques are appropriate and to ensure compliance with hydrology and hydraulics standards, and as applicable, storm water quality regulatory requirements.
- The size and complexity of drainage studies will vary based on the level of detail needed for each project, per the county drainage study requirements.
- Drainage studies for development projects range from large master plan areas to small infill projects; selected consultants will be expected to be able to access and review commonly used modeling software such as hi-res, storm, storm cad, etc.
- As well as the county hydrology calculator, SacCalc, area hydrology model (SAHM) and low impact development credit and treatment sizing calculation spreadsheet.
- Occasionally, the selected consultants may be asked to support agency staff with the following:
- Review of improvement plans for development projects to ensure compliance with applicable standards and construction specifications; review of improvement plans is subject to a formal 20-10-10 day review cycle (20 work days for initial submittals, and 10 work days for each subsequent resubmittal).
- Hydrologic and hydraulic modeling efforts to determine floodplains.
- Development of master drainage studies and/or updates to existing master drainage studies.
- CLOMR/LOMR submittals to FEMA.
- Attending meetings with the agency and developers to discuss review comments.
- The selected consultants to provide a time and cost estimate for approval prior to initiating the task.

- Contract Period/Term: 2 years