Project record

Barton to New Holland tidal flood-defence scheme

Participation
Planned procurement
Participation checked

Detailed design, land discussions and environmental assessment; Full Business Case targeted for summer 2027

Participation source

The Environment Agency and Arup are developing tidal embankment improvements between Barton and New Holland. Land requirements, habitat effects and possible separate Barrow Haven works shape the route to the 2027 business case.

Barton to New Holland tidal flood-defence scheme project diagram: Detailed design 2026; Full Business Case summer 2027; Phased works 2028-29 planned. Land footprint and habitat design to Consents and Full Business Case to Phased embankment construction.

IMWO original project diagram; source: Environment Agency

Location

United Kingdom / Europe

Segment

Tidal embankment and outfall adaptation

Phase

Planning / Confirmed

Last checked

3 November 2026

Coverage

Related sectors

Tidal embankment and outfall adaptation is the primary work classification. Related sectors connect this record to adjacent marine delivery and market coverage.

Subject index

Related subjects

These subject pages bring together related projects, technical articles, reports, and evidence methods.

Project anatomy

Contract scope and delivery roles

Client / authority
Environment Agency
Delivery parties
Arup - Full Business Case and detailed-design services
Contract route
Arup's Full Business Case contract began at the end of December 2025. The main construction programme remains in design and funding development.
Execution window
The owner targets the business case for summer 2027, preparatory elements from late 2027 and phased construction during 2028-29. Barrow Haven adaptation may follow a separate consent-led phase.
Works package
Raising and adapting tidal embankments, associated drainage and outfalls, and property flood-resilience measures, with possible separate Barrow Haven adaptation.
Marine interfaces
An inland embankment extension changes land requirements and habitat effects. Engagement with Natural England and the MMO is informing the design and licensing approach.
Commercial evidence boundary
The reported GBP 750,000 allocation supports continued 2026/27 development. Local council funding and the wider scheme estimate have separate scopes; construction quantities and access depend on the selected embankment footprint.

Evidence gap

What remains unverified

Outstanding evidence

  • Agreed inland embankment footprint and land access
  • Habitat design and the authorities' marine-licensing determination
  • Barrow Haven phasing and summer 2027 Full Business Case scope

Reporting status

Project phase
Planning
Evidence confidence
Confirmed
Last checked
3 November 2026
Cited sources
4

Sources and related records

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