Sterling Highway Safety Corridor Study: Sterling to Soldotna

Project Overview

Welcome to the website for the Alaska Department of Transportation and Public Facilities (DOT&PF) Sterling Highway Safety Corridor Study. 

The DOT&PF is completing a safety enhancement study of the Sterling Highway between Soldotna and Sterling funded by the State of Alaska through a general fund appropriation. This segment of the Sterling Highway is one of four designated highway safety corridors in Alaska. This highway segment was designated a highway safety corridor because of its history of higher than average incidences of serious injury and fatal crashes. 

The study is part of DOT&PF’s continuing efforts to focus on improving safety within designated safety corridors and will provide direction to DOT&PF on future safety enhancement projects. The work of the study involved analysis of the corridor and, ultimately, a recommended alternative that will improve safety far into the future. Alternative A, a 4-lane design divided by a depressed median, was chosen by DOT&PF as the preferred alternative. Alternative A best improves the safety, capacity, and mobility of the highway. It also best meets the local land-use plans. The center-depressed median provides snow storage, allows for storm water infiltration and, importantly, mitigates lane crossover (head-on) collisions. The 4-lane design transitions from 5-lane sections in both Sterling and Soldotna The preferred alternative also includes a “best fit” multi-use trail for the full length of the roadway between Sterling and Soldotna.

Click to see the preferred alternative.

Construction of the preferred alternative is planned for 2018, depending upon the availability of funding and other factors.

Current Status

The Preliminary Engineering Report is available for review. The DOT&PF is pursuing Federal highway funds for this project and will be selecting a consultant to complete the required environmental document and design the improvements in early 2016.

Preliminary Engineering Report - 6 Mb pdf