Denali Borough planners review $6.4 million rough estimate to build roads for Lignite Subdivision

Denali Borough planning commissioners on Nov. 19 heard a rough order-of-magnitude road-cost estimate for the proposed Lignite Subdivision that totals about $6.4 million for two phases, officials said.

Mayor (unnamed) summarized the Design Alaska estimate, saying Phase 1 (the northern loop) was estimated at roughly $3.8 million and Phase 2 (the bottom/southern segment) at about $2.5 million. Staff noted the consultant used state DOT road standards adjusted for rural/remote conditions and that the estimate requires reconciliation where per-mile costs differed between the two phases.

Commissioners and staff ran through the arithmetic on per-lot and per-acre costs. Staff presented a back-of-the-envelope average cost per lot of about $165,000, noting that the figure is derived from the consultant’s conceptual design and the current 39‑lot concept and that the numbers are a preliminary, rough estimate rather than a final bid.

Public commenter Barbara Breeze raised environmental concerns about sourcing sand and gravel from braided-river areas near Dry Creek springs and Lake Knight Springs, urging the borough to prioritize upland sources to avoid damage to groundwater, springs and adjacent wells. Breeze said: "It's pretty important regarding groundwater, noise, dust, but especially the groundwater, especially so close to Dry Creek Springs." Staff acknowledged the concern and said they had inspected a borough-owned gravel pit off Stampede Road but were not yet certain it could supply the specified material.

Commissioners discussed alternatives to reduce the borough’s upfront cost, including changing lot sizes, phasing roads so fewer lots are served initially, and seeking a developer or contractor to build and sell homes that would amortize infrastructure costs. They also discussed deed restrictions or design parameters (for example, limiting short-term rentals) to preserve long-term housing affordability if development proceeds.

No formal action was taken. Staff said the estimate would inform capital improvement planning and budgeting and recommended sharing the numbers with the assembly to consider whether to place funding placeholders or pursue grants and matching funds. Mayor/staff noted the borough has a budgetary reserve (approximately $1.2 million) but that this project would require a broader capital stack.

Next steps: staff will ask Design Alaska to reconcile per-mile cost discrepancies between Phase 1 and Phase 2, continue investigating upland gravel sources, and bring refined estimates and funding options to the assembly for further direction.