Älgån River, Sweden

Älgån River, Sweden

May 6, 2026

14 culverts, Rulles basin, Belgium

14 culverts, Rulles basin, Belgium

March 23, 2026

Lescoude Culvert and Gué d’Ahetze Dam, France

Lescoude Culvert and Gué d’Ahetze Dam, France

July 14, 2023

Pessegueiro multi-culvert road crossing, River Vascão, Portugal

Pessegueiro multi-culvert road crossing, River Vascão, Portugal

March 9, 2022

Crosthwaite Culvert, UK

Crosthwaite Culvert, UK

November 28, 2018

Swin Burn, River North Tyne (U.K.)

Swin Burn, River North Tyne (U.K.)

September 20, 2018