Whitton Bridge Pasture is a Site of Special Scientific Interest (SSSI) in the unitary authority of Stockton-on-Tees, England.

The biological interest is focused on the species-rich mesotrophic grassland found across the site, which is actively maintained by grazing.

The site is small and isolated, and therefore requires careful management to avoid damage caused by activity on neighbouring land.

[2][5] Because Whitton Bridge Pasture is located in North East England it experiences a climate that is different from the UK average.

The dominant species are Red Fescue (Festuca rubra), Common Bent (Agrostis capillaris) and Yorkshire Fog (Holcus lanatus).

The less abundant species of grass include, Crested Dog's-tail (Cynosurus cristatus), Heath-grass (Danthonia decumbens) and Cocksfoot (Dactylis glomerata).

The subcommunity also has many broad-leaved herbs including Common Knapweed (Centaurea nigra), Tormentil (Potentilla erecta), Devils-bit scabious (Succisa pratensis) and Betony (Stachys officinalis).

The subcommunity also contains Meadow barley (Hordeum secalinum), a perennial grass, which is a characteristic species of the Tees Lowland.

Species-rich grassland, such as that found at Whitton Bridge, requires careful management for it to retain its high species diversity.

[11][12] Management of the site requires moderate grazing during the summer and autumn to help maintain the species diversity.

For example, herbicides, thought to be generally damaging for the species richness, could get onto the site from the drift of spray from surrounding fields.