D3-State Route 89 Henness Pass Pavement Rehabilitation Project

PROJECT DESCRIPTION:

Along State Route 89 (SR 89) from the Sierra/Nevada County line to the junction with State Route 49 (SR 49) in Sierraville. Rehabilitate pavement and drainage systems, construct maintenance vehicle pullouts, upgrade signs and guardrail to American Disability Act (ADA) standards, and install Traffic Management System (TMS) elements.

PROJECT MAP:

PURPOSE AND NEED:

The purpose of this project is to preserve the existing pavement and prevent further deterioration of the roadway from the Sierra County line to the SR 89/SR 49 junction in Sierraville. The project will also extend the operational life of various drainage systems, modernize pedestrian facilities, and improve safety features within the project limits.

The existing pavement shows signs of cracking and is projected to deteriorate further in the absence of a pavement maintenance project. Multiple culverts are also in need of rehabilitation and/or replacement to restore functionality. Sidewalks and driveways along SR 89 within Sierraville do not meet current ADA standards and show signs of distress and deterioration.

PROJECT COSTS:
Support Cost   $6.28 million
Capital Cost    $15.56 million
Total Project Cost  $21.84 million

PROJECT SCHEDULE:

Project Approval & Environmental Document	August 2027
Design Completed	June 2028
Advertise Project	September 2028
Begin Construction	December 2028
Complete Construction	June 2029

PROJECT CONTACTS:
Christopher Sugar, Project Manager, (530) 812-4314; christopher.sugar@dot.ca.gov
Jeremy Linder, Public Information Officer, (530) 701-5209; jeremy.linder@dot.ca.gov