Highway

Highway Drainage and Large Culvert Design, 5 miles of Route 3 in Bar Harbor, Maine

Northstar worked with HNTB for the Maine DOT to provide drainage design and large culvert hydrologic and hydraulic design for over 5 miles of reconstructed Route 3 north of Bar Harbor, Maine on Mount Desert Island.  The project included a number of large culverts, some with fish passage improvements as well as several miles of […]

VTrans Culvert H&H Analysis, VT Statewide

Northstar Hydro has conducted numerous hydrologic and hydraulic analysis of culverts for Towns throughout Vermont.  Projects are initiated when the Town requests a review of replacement alternatives for specific culverts through VTrans.  Northstar Hydro conducts a site visit, confers with local officials, assesses hydrologic flow, and recommends several culvert sizing alternatives based on hydraulic and environmental standards. […]

Highway Drainage for Proposed Interchange, Waterville, ME

Northstar Hydro worked with FST and Maine DOT to provide hydrologic and hydraulic design services for a new exit ramp from the Maine Turnpike. Northstar conducted a hydrologic analysis, drainage review, and/or sizing design of 17 cross culverts: 5 new culverts, 6 culvert extensions, and 6 additional culverts beyond the project but reviewed as part of the […]

Design Build: I-91 Twin Bridges over West River, Brattleboro, VT

Subcontractor for hydrologic, hydraulic and scour design services for design-build replacement of I-91 bridges over West River in Brattleboro, Vermont. Design included evaluation of complex pier scour, potential ice effects, and potential for rock scour for major highway bridge over medium sized river. Subcontractor to FIGG Bridge within Design-Build team

Copyright by Northstar Hydro, Inc., 2017