BRIMSTONE 3 — UK Government Major Projects Portfolio (GMPP) — Tollgate Data

BRIMSTONE 3BRIMSTONE 3 (MOD) appears in 3 snapshots of the UK GMPP, from 2023 Mar to 2026 Mar.Its planned finish is 31 Jan 2031, 21 months later than the 30 Apr 2029 first planned.Its latest rating is Amber (2026 Mar), up from Red at 2023 Mar.

Snapshot

Cost

Planned finish

Rating

2023 Mar

30 Apr 2029

Red

2025 Mar

31 Dec 2028

Amber

2026 Mar

31 Jan 2031

Amber

Cite: IPA / NISTA (Cabinet Office) (2026). UK Government Major Projects Portfolio (GMPP): BRIMSTONE 3. Tollgate Data, https://data.tollgatehq.com/projects/uk-gmpp/brimstone3, as at 31 Mar 2026. Licence: OGL v3.QuestionsIs BRIMSTONE 3 late? Its planned finish is 31 Jan 2031, 21 months later than the 30 Apr 2029 first planned.What is BRIMSTONE 3's latest rating? Its latest rating is Amber (2026 Mar), up from Red at 2023 Mar.UK Government Major Projects Portfolio (GMPP)UK Government Major Projects Portfolio (GMPP) projects