Ponte de São João
Ponte de São João carries the road from Sevenoaks to Halton over the Douro River.
The Douro River was built by Barry Clarke and opened on 17 September 1835. Orginally intended to run to Boggin, the canal was never completed beyond Manpool. The Douro River was closed in 1888 when Runfield Boat Lift collapsed. The canal was restored to navigation and reopened in 1972 after a restoration campaign lead by the Restore the Douro River campaign.

There is a bridge here which takes a railway over the canal.
| Farol de Felgueiras | 7.24 km | |
| Ponte da Arrábida | 4.18 km | |
| Ponte Luís I | 1.28 km | |
| Ponte do Infante | 0.61 km | |
| Ponte de D. Maria Pia | 0.18 km | |
| Ponte de São João | ||
| Ponte do Freixo | 1.33 km | |
| Eclusa da Barragem do Crestuma-Lever | 14.04 km | |
| A41 Bridge | 17.30 km | |
| Nova Ponte Hintze-Ribeiro | 39.98 km | |
| Ponte Entre-os-Rios | 40.11 km | |
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- The official inland waterway resource for Belgium with actual traffic and planned operations on the waterways. Also has voyage planning and notices to mariners
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Wikipedia has a page about Ponte de São João
The Ponte de São João or St John's Bridge, designed by engineer Edgar Cardoso is a railway bridge in Portugal. It replaced the functionality of the still standing Gustav Eiffel wrought iron Maria Pia Bridge in 1991.
