---
title: "Granite wins $31 million early works grading contract for Willow Rock energy storage project in California"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/295706125.md"
description: "Granite Construction Inc. secured a $31 million early works grading contract for Hydrostor’s Willow Rock Energy Storage Center in Kern County, California. The project involves site preparation for an 89-acre, 500 MW advanced compressed air energy storage facility north of Rosamond. Work is scheduled to begin in July 2026 and conclude by March 2027, with the award expected to impact Granite's third-quarter 2026 capital allocation plan."
datetime: "2026-08-12T20:30:49.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/295706125.md)
  - [en](https://longbridge.com/en/news/295706125.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/295706125.md)
generator: "portal-rs"
---

# Granite wins $31 million early works grading contract for Willow Rock energy storage project in California

-   Granite won a USD 31 million early works grading package for Hydrostor’s Willow Rock Energy Storage Center in Kern County, California. \* Work covers site preparation for an 89-acre, 500 MW advanced compressed air energy storage project north of Rosamond. \* Early works started in July 2026, scheduled to finish in March 2027; award slated for Granite’s third-quarter 2026 CAP. Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Granite Construction Inc. published the original content used to generate this news brief via Business Wire (Ref. ID: 202608121630BIZWIRE\_USPR\_\_\_\_\_20260812\_BW763026) on August 12, 2026, and is solely responsible for the information contained therein. © Copyright 2026 - Public Technologies (PUBT)

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---
> **Disclaimer: This article is for reference only and does not constitute any investment advice.**