Brunel Bridge could be an informal or local reference to any one of several famous bridges in England built by Isambard Kingdom Brunel, including:

• The Clifton Suspension Bridge across the Avon Gorge in Bristol
• The Royal Albert Bridge across the River Tamar from Devon to Cornwall
• Maidenhead Railway Bridge across the River Thames in Maidenhead

or:

• The proposed pedestrian and cycle bridge over the River Thames between Rotherhithe and Canary Wharf

Other

• The Brunel Bridge Roundabout in Slough, famous by its appearance in the opening titles of the Ricky Gervais sitcom The Office