Tickford Bridge - for the latest updates, visit our Major Projects page. The bridges and structures on the highways across Milton Keynes are inspected, maintained and repaired by the council. Highways structures includes over 300 underpasses, over 300 porte cocheres - the iconic covered walkways in CMK, retaining walls and the Great Holm Obelisk. We look after over 763 bridges across Milton Keynes from small footbridges connecting redway links over streams and brooks, to the large concrete and suspension bridges carrying traffic on dual carriageways. The bridge over the V6 Grafton Street near Bradwell is also an aquaduct for the Grand Union Canal. Historical bridges Tickford Bridge in Newport Pagnell and Tyringham Bridge near Olney are Grade I listed Scheduled Monuments. This means that any works on them, even minor repairs, must be done with full approval and permission of the relevant authorities including Historic England due to their historical importance. Tickford Bridge was built in 1810 and is one of the last cast iron bridges in Britain in use today that carries traffic the 17 metres over the River Ouzel in Newport Pagnell. Tyringham Bridge was designed and built in 1793 by Sir John Soane who designed the nearby Tyringham House. Tyringham Bridge repairs A road traffic incident damaged the bridge in August so the bridge had to be fully closed so that an assessment of the damage could take place. As the bridge is a Grade I Ancient Scheduled Monument, all works had to be planned and approved by Historic England before it could be reopened. Both the southern parapets were extensively damaged by the collision however repair works are now complete and the bridge will reopen on Friday 18 November. Porte Cocheres There are over 300 porte cocheres in CMK which are part of the original Milton Keynes city centre design. We regularly inspect all these structures to check for any defects. Porte cocheres means 'coach gateway' and these provide a covered walkway for pedestrians who are moving around the city centre. All porte cocheres are painted black. To find out more about porte cocheres in MK, watch our short video on our YouTube channel. Underpasses There are over 300 underpasses across MK, connecting the residential and industrial area through the redway network. Underpasses allow pedestrians and cyclists to safely cross a grid road. If you need to report an issue with an underpass such as lights out or graffiti, please use the Report it form or call 01908 252353.