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Ketchikan Hospital

…management activities, which included oversight of the architecture and engineering team for completion of the design. DOWL also served as the construction manager through a Construction Manager/General Contractor (CM/GC) process…

Sheridan 4MG Water Tank

…prepared options for rehabilitation or total reconstruction. The city selected rehabilitation so the PER was submitted to the Wyoming Water Development Commission and State Revolving Funds Program and the $3…

Swan River Floodplain Delineation Study

DOWL recently completed the hydraulic evaluation and floodplain mapping tasks for a 19.1-mile reach of Swan River, from Swan Lake to the Missoula County line, for the Montana Department of…

TranPlanMT

The Montana Department of Transportation (MDT) contracted DOWL to update Montana’s statewide long-range transportation plan. The update provides a comprehensive outlook and outlines a policy roadmap to guide future MDT…

Chambers Covered Bridge

…tilt further to the side, causing concern that the bridge could completely fail. The City declared an emergency to dismantle it in early spring rather than waiting for summer. Due…

Williams Northwest Pipeline Bridge Inspections

for use during inspection and maintenance. Our inspections of Williams Northwest Pipeline Bridge infrastructure included the Flaming Gorge bridge, as well as Green River and Kemmerer compressor stations in southwest…

Meadow Creek Fish Passage

for Coho, chinook, and sockeye salmon. DOWL provided the full suite of design and support services, including a geotechnical investigation, topographic survey, and geomorphic analysis. DOWL completed a cost-benefit analysis…

Warm Springs Creek Emergency Bridge Replacement

During severe flooding, significant erosion occurred behind the bridge wingwalls resulting in the road closure of Highway 191. Highway 191 is an important transportation corridor serving the rural communities of…

Blacktail Deer Creek Floodplain Study

DOWL has completed the hydraulic modeling and mapping for a new enhanced level (with floodway) floodplain study for an 11-mile reach of Blacktail Deer Creek in Beaverhead County. This flood…

Bighorn Canal

…during irrigation season. DOWL designed several reconstruction projects, including the replacement of two flumes with eight-foot and nine-foot-diameter inverted siphons as well as a new wasteway structure. DOWL also completed…