Last Chance Grade Tunnel Project
Sector: Road • Location: California, United States
Source: Planetizen
A $2.1 billion tunnel project to save Highway 101 in Northern California by bypassing a landslide-prone section known as Last Chance Grade. The 6,000-foot tunnel will be the longest in state history and aims to provide a reliable transportation route between Eureka and Crescent City, which currently faces repeated closures due to rockslides and erosion.
- Status
- Prospective
- Sector
- Road, Tunnel, Government
- Location
- California, United States of America
- Updated
- 22 Jul 2026
- Source
- Planetizen
ConstructChat
Ask ConstructChat about Last Chance Grade Tunnel Project
Pick a question to edit it, or write your own.
First answer free · no account
Project Information FAQ
Project Information
Participants
Sponsoring Agency |
Status
Original status | planned |
Taiyo status | Prospective |
Taiyo last update | 2026-07-22 |
Contact
| Not available for this record. |
Description
Description | A $2.1 billion tunnel project to save Highway 101 in Northern California by bypassing a landslide-prone section known as Last Chance Grade. The 6,000-foot tunnel will be the longest in state history and aims to provide a reliable transportation route between Eureka and Crescent City, which currently faces repeated closures due to rockslides and erosion. |
Original sector | Transportation |
Budget |
Location
Country | United States of America (USA) |
State | California |
Source
Source | Planetizen |
URL |
More Details
Record type | Project |
Sector | Road, Tunnel, Government |
Article published date | 2025-09-16 |
Research
Free account
View all details
You are reading the public part. A free account opens the rest:
- Every detail on this project
- News and media coverage
- Technical research
Free account · no card · lands you back on this project