Longham Bridge is a Grade II listed building in the Dorset local planning authority area, England. First listed on 5 May 1952. Road bridge.

Longham Bridge

WRENN ID
still-flint-gilt
Grade
II
Local Planning Authority
Dorset
Constituency
Christchurch MP: Sir Christopher Chope (Con)
Country
England
Date first listed
5 May 1952
Type
Road bridge
Address
Longham Bridge, Ringwood Road, Bournemouth, Christchurch and Poole
OS grid reference
SZ 064 973
Coordinates
50.77528, -1.91013
Source
Historic England listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Longham Bridge is a road bridge over the River Stour, originally built in 1728 and later rebuilt and widened in 1792. It features eleven low round-headed arches supported by ashlar piers and red brick vaults. The bridge has stone triangular cutwaters with simple chamfered capitals. There is a stone and brick arch located further north over the mill stream leading to Longham Pumping Station, which was constructed in 1885. On the east side, a footway is cantilevered out on concrete beams, added around 1960, while the west side includes a large duct over the cutwaters. The approach ramp has brick sides.

Local climate

Longham Bridge receives an average of 850 mm of rain a year. This makes it wetter than 60% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 84% of listed buildings.

It experiences an average of 11 freeze-thaw cycles a year, fewer than 90% of listed buildings. Of these, 4 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

More on this building

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