A WBE and DBE Engineering Firm Serving Northern New England Since 1994

Route 9 Bridge Kennebunk, ME

Northstar Hydro, Inc. provided hydrologic, hydraulic and scour analysis to Maine DOT’s contractor for preliminary and final design for proposed replacement of the Route 9 bridge between Kennebunk and Kennebunkport.  Unsteady flow modeling with model HECRAS and field monitoring provided data on water elevations, velocities, and rate of flow through the bridge under a variety of storm and daily tide conditions. The model helped to determine whether the bridge impacted upstream water levels and provided scour related variables. The site is shown in the photo below and the tidal river is shown in the air photo.