This cache forms part of the Bow Heritage Trail.
Three Colt Bridge was built in 1830 and is contemporary with the opening of the Hertford Union Canal. The Hertford Union Canal was instigated by Sir George Duckett and constructed by Francis Giles. It spanned 2km from the Regent's Canal to the Lee Navigation. It was later bought by the Regent’s Canal Company before it joined the Grand Union system in 1929. At the northern edge of the bridge is Victoria Park, a Grade II* registered park.
The bridge has a slightly cambered cast iron girder deck with an open geometric iron parapet railing on the east side and iron mesh screen on the west side. The bridge abutments are of stock brick with stone quoins. At either end of the bridge are brick wing walls with a brick band and stone coping. The bridge surface is of concrete topped with asphalt. The brick work on the canal towpath exhibits historic wear patterns relating to 19th century rope marks caused by horses towing canal boats.
Three Colt Bridge is Grade II* listed.
Magnetic cache - use stealth.