FEMA Bathymetric Surveys for RiskMAP
Idaho, USA
STARR II, PTS contractor for FEMA
Hydrologic analysis across ID, WA, and OR for FEMA's Risk MAP
Services
Surveying
Hydrology
About the project
Since 2011, Harmony Design & Engineering has been a subconsultant to STARR II, which is a joint venture among Atkins North America, Stantec Consulting, and Dewberry. STARR II has been the Professional Technical Service (PTS) provider to Region 10 for FEMA’s Risk MAP program through a multiple year IDIQ contract. Harmony Design & Engineering was contracted to provide field surveying, riverine engineering and mapping, alluvial stream modeling, and community outreach and engagement services in Idaho, Washington, and Oregon.
How we did it
Field Survey activities have included obtaining current on the ground data to support hydraulic modeling analyses required for floodplain mapping projects. Field survey work has included developing cross sections, establishing benchmarks, and performing measurements for a variety of structures such as levees, dams, culverts, and bridges. Field work as also included general reconnaissance of the study area and performing independent QA/QC on all data prior to delivery to the prime contractor. Harmony has also worked directly with property owners and community officials to obtain the necessary agreements to access the study areas. All survey deliverables have been Data Capture compliant following the Survey Data Submittal Guidelines.
Community outreach services have included participating in community meetings, providing technical data to support decision making processes, providing support for discussions regarding increased regulatory product adoption and acceptance, and mitigation throughout the Risk MAP project lifecycle.
Hydrologic analysis services have included determination of peak flood discharges, the use of rainfall-runoff models, regression equations, gage analysis, and hydrograph development, to support the level of detail required for the project. Hydraulic analysis has included both 1-D and 2-D riverine models and associated floodplain mapping.