Damage to bridges and structures
Last updated 1 February 2023
3. Types of bridges and structures
Did you know?
We currently look after 708 structures across Stockport:
- 102 road bridges
- 152 footbridges
- 316 retaining walls
- 104 culverts
- 19 subways
- 13 sign and signal gantries
- 1 tunnel
- 1 special structure
Bridge
A structure with a span of 1.5m or more spanning and providing passage over an obstacle. For example:
- watercourse
- railway
- road
- valley
- subways
- underpasses
Footbridge
A structure with a span of 1.5m or more spanning and providing passage over an obstacle, where the main function is to carry pedestrian traffic only. For example:
- watercourse
- railway
- road
- valley
- pedestrian cycleways
Culvert
A drainage structure with a span of 1.5m or more passing beneath a highway embankment that has a proportion of the embankment, rather than a bridge deck, between its uppermost point and the road running courses. Culverts are normally rectangular or circular in cross section.
Retaining wall
A wall associated with the highway where the dominant function is to act as a retaining structure, and with a minimum retained height of 1.35m
Sign/signal gantry
A structure spanning the highway, the primary function of which is to support traffic signs and signalling equipment.
Steps
A flight of stairs leading up or down from the highway, footway or park land.
Subway
A bridge providing passage under a road for use by pedestrians.
Tunnel
A tunnel with an enclosed length of 150m or more through which a road passes.
Special structure
A structure affecting the highway, maintained by us, that does not fit into any other category.