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Johnson Wetland Mitigation Project

The Johnson Wetland Mitigation Site will provide compensatory wetland mitigation for anticipated impacts from future transportation projects. DOWL was retained by the Montana Department of Transportation to analyze the viability…

Poly Drive Reconstruction and Storm Drain Design

…pipe ranging from 12-inch PVC pipe to 36-inch RCP storm drain pipe, over 65 inlets, and installation of a 96-inch manhole at the intersection with Zimmerman trail. DOWL developed rain…

Lowe River Dike Repair

DOWL assisted the City of Valdez, Alaska in the preparation of plans, specifications, estimate, permitting, Storm Water Pollution Prevention Plan documents, and construction inspection for approximately 500 feet of dike…

GPS

THIS SITE IS NO LONGER IN SERVICE Please navigate to https://gps.dowl.com

Southern Oregon Seismic Bridge Project

commitments required some bridges to be under construction in 2020. To meet these funding requirements, construction was split into three different bundles. Retrofit strategies, earthquake-resisting elements (EREs), and earthquake-resisting systems…

I-405: Fremont Bridge Approach Ramps

…the design, DOWL was competitively awarded an additional bridge preservation project located on the I-405 northbound ramp to US26 westbound. DOWL was able to quickly contract with Oregon Department of…

Bernhardt Creek Slide Repair

…analysis, the team selected a retaining wall as the preferred alternative because it presented the best combination of reasonable risk, constructability, cost-effectiveness, environmental and permitting options, and minimized traffic impacts….

Sweet Creek Road

…evolved into a complex 15-span bridge in order to maximize its effectiveness in preventing further landslides at the site and maintaining access. It is now the longest bridge in the…

Steamboat Springs Airport Master Plan

…areas for near-term hangar development prior to the alternatives task, to accomodate current demand. The project included public outreach through city council, public open houses, and a project advisory committee….