#7 | Flood protection at bridge level
Protecting the centre of Besançon around the Pont de la République
25000 Besançon
47.241014, 6.028179
| Hazard | Flooding due to the overflowing of the Doubs River – Quays protected by an embankment except at bridge level |
| Length deployed | 30,2 m (x 2) |
| Equipment | 2 WL 3950 barriers in rolls and 2 aluminium cofferdams (x2) |
| Protection height | 100 cm |
| Deployment | 45′ |
| Assembly | Supported by cofferdams – Installation of EPDM seals for rails
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| Location | Pont de la République, Besançon |
Closure of the dike system of the city of Sélestat at the level of the Departmental Route 1083 bridge
67600 Sélestat
48.272056, 7.459677
| Hazard | Centennial flood (HQ100) of the “Le Giessen” river. The river was dammed upstream and downstream of the RD1083 bridge in Sélestat. Modeling of the 100-year flood shows overflows on the bridge with a risk of flooding towards both banks. |
| Length deployed | 49 meters |
| Equipment | 2 WL-3230 and 2 WL-3250 Water-Gate © pre-attached in 1 rapid deployment box on wheels. |
| Protection height | 81 cm |
| Deployment | Quick and easy installation and uninstallation in under an hour. Car traffic can be cut off “at the last moment” when the alert threshold is reached (the RD1083 bridge representing the only crossing of the Giessen in Sélestat). |
| Assembly | The flexible barriers are supported at the ends on the guardrails which have been reinforced with metal plates for the occasion. |
| Location | Selestat | Bas-Rhin | France |
Stop flooding: La Rosselle border bridge
49.207406, 6.843217
| Hazard | Flooding of the Rosselle plain (Sarre watershed) |
| Length deployed | 15,2 meters |
| Equipment | 1 WL-5050 Water-Gate © on a roll |
| Protection height | 127 cm |
| Deployment | 10 minutes with 4 people | Petite Rosselle Fire Department |
| Assembly | The flexible barrier is supported at the ends on the parapets of the border bridge. The flexible Water-Gate © system replaces an old aluminum system that was stolen. |
| Location | Petite-Rosselle | Moselle | France |
