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  • I-5 – Secret Creek Fish Passage Project

Photos

Map showing where fish barriers will be removed at two locations along I-5 between Arlington and Sunday Lake
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Fish barriers will be removed at two locations along I-5 between Arlington and Sunday Lake
I-5 near Stanwood aerial photo
Map showing where fish barriers will be removed at two locations along I-5 between Arlington and Sunday Lake
Graphic showing temporary two-lane bypass roadway alignment on I-5 NB and SB beginning Feb. 2025
Old Highway 99 closure detour
Graphic showing locations of existing fish barrier and new 68-foot wide steel arch culverts