Rose Bridge, Mottisfont

Location: Hampshire

Client: National Trust

Architect: Rocon Contractors

Value: Not disclosed

The Rose Bridge is located within the Grade II listed Park and Garden of Mottisfont Abbey, crossing the Abbey Stream, part of the River Test.

It forms an important connection between the south lawn and riverside walk, contributing to the wider setting of the Grade I listed Abbey House and the remains of the Chapter House. Historically, a bridge existed at this location from at least the mid-19th century, originally as a simple level crossing. A later 1990s replacement introduced an arched steel and timber structure, altering both its appearance and usability.

The existing bridge had deteriorated significantly, with the timber deck becoming unsafe for use. Its arched profile restricted accessibility, preventing use by wheelchair users and mobility vehicles. The project was further constrained by its highly sensitive setting, including the river’s SSSI designation, nearby salmon spawning areas, mature tree roots and archaeological considerations. Any replacement needed to satisfy Environment Agency requirements, avoid increasing flood risk or debris blockage, and preserve the historic character of the site.

SFK Consulting undertook a detailed inspection and options appraisal, supported by historical research, hydrological modelling and flood risk assessment.

Archival photographs confirmed that a level bridge had historically existed, supporting the case for a more accessible design. Analysis of the wider river system demonstrated that a reduced soffit level would not increase flood risk. This enabled the development of a low-level bridge without ramps, improving accessibility while minimising impact on trees and archaeology.

The new structure comprises hollow steel beams supporting an iroko timber deck, selected for durability and sustainability. Existing abutments were retained, avoiding any in-river works. The original hinged steel fencing was carefully restored and incorporated into a new compliant balustrade, preserving historic character. The bridge was prefabricated off-site and installed in a single lift to minimise disruption and environmental impact.

Completed in 2024, the new Rose Bridge successfully restores the historic form of a level crossing while delivering full accessibility for all visitors.

The project was delivered within a tightly constrained construction window, avoiding impacts on the river environment, wildlife and surrounding heritage assets. The result is a carefully considered and elegant structure that enhances both the functionality and setting of Mottisfont Abbey, combining engineering, conservation and environmental sensitivity in a highly complex context.

Photo credit: Ethan Davis Creative

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