DJ&A served as the prime consultant responsible for coordinating all aspects of project development for the 10.7-mile Fernan Lake Road, located along Fernan Lake near Coeur d’Alene, Idaho. Working closely with Western Federal Lands Highway Division (WFLHD), DJ&A developed plans, specifications, and an engineer’s cost estimate to reconstruct and widen the road with primary goals of improving safety and addressing environmental concerns.
DJ&A prepared full right-of-way plans for the project, including exhibits for each of the 77 acquisition parcels. In-house staff performed all acquisition with in-house staff, including relocations, without engaging any parcel in eminent domain proceedings.
To complete the work, DJ&A supported a WFLHD-led Environmental Assessment by providing archeological investigation, documentation of historic Civilian Conservation Corps retaining walls on the project, and coordinated with SHPO. DJ&A also prepared documentation to obtain permits to perform stream restoration and in-water work around the shoreline.
- Provided construction engineering support
- Designed culverts, MSE wall, trailhead parking lot, and right-of-way monumentation
- Performed rock bolting and stabilization and utility relocation coordination
- Facilitated right-of-way negotiation and acquisition
- Performed traffic analysis and archeological investigation
- Conducted topographic survey , mapping, property boundary and cadastral ties
- Facilitated public involvement including public information meetings
Due to the close proximity of the road to the shore of the lake, DJ&A designers produced a tight design that aligned the road between steep cut slope and the lake while meeting minimum safety constraints. The project included the design of a 444’ concrete curved-deck bridge around Lilly Pad Bay, and multiple smaller structures including pipe culverts, concrete box culverts, and pipe arches.