Gross Reservoir Expansion Project
Sector: Hydro • Location: Boulder, Colorado, United States
Source: Coyote Gulch
A project to raise the Gross Reservoir dam by 131 feet to a new height of 471 feet, nearly tripling the reservoir's capacity to 119,000 acre-feet. The project involves placing roller-compacted concrete on top of the existing dam and adding 118 new steps to the dam structure. The expansion aims to ensure future water security for Denver Water's delivery system amid climate change impacts.
- Status
- Under Construction
- Sector
- Hydro, Water Supply and Storage, Cement, Government
- Location
- Boulder, Colorado, United States of America
- Updated
- 22 Jul 2026
- Source
- Coyote Gulch
ConstructChat
Ask ConstructChat about Gross Reservoir Expansion 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 | Under Construction |
Taiyo status | Under Construction |
Taiyo last update | 2026-07-22 |
Contact
| Not available for this record. |
Description
Description | A project to raise the Gross Reservoir dam by 131 feet to a new height of 471 feet, nearly tripling the reservoir's capacity to 119,000 acre-feet. The project involves placing roller-compacted concrete on top of the existing dam and adding 118 new steps to the dam structure. The expansion aims to ensure future water security for Denver Water's delivery system amid climate change impacts. |
Original sector | Water Infrastructure |
Budget |
Location
Country | United States of America (USA) |
State | Colorado |
City | Boulder |
Source
Source | Coyote Gulch |
URL |
More Details
Record type | Project |
Sector | Hydro, Water Supply and Storage, Cement, Government |
Article published date | 2025-06-08 |
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