Road ecology blog: Variable message sign, no stopping in road, at a location with frequent black bear sightings, Great Smokey Mountains National Park

Variable message sign, no stopping in road, at a location with fVariable message sign, no stopping in road, at a location with frequent black bear sightings, Great Smokey Mountains National Park

Elk (Cervus canadensis) showing ivory teeth, Cataloochee Valley, Great Smoky Mountains National Park, North Carolina, USA

Elk (Cervus canadensis), Cataloochee Valley, Great Smoky MountaiElk (Cervus canadensis), Cataloochee Valley, Great Smoky Mountains National Park, North Carolina, USA

Fog and blue mountain ridges, Great Smoky Mountains, North Carolina, USA

Fog and blue mountain ridges, Great Smoky Mountains, North CarolFog and blue mountain ridges, Great Smoky Mountains, North Carolina, USA Fog and blue mountain ridges, Great Smoky Mountains, North CarolFog and blue mountain ridges, Great Smoky Mountains, North Carolina, USA

Road ecology blog: Screen to reduce visual and noise disturbance on wildlife overpass Groote Heide, across A2 motorway (about 50 m wide), The Netherlands

Screen to reduce visual and noise disturbance, wildlife overpassWildlife overpass Groote Heide, across A2 motorway (about 50 m wide), The Netherlands. This overpass connects forests, heath lands and inland sand dunes. Target species include Eurasian badger (Meles meles), pine marten (Martes martes) viviparous lizard or common lizard (Zootoca vivipara (formerly Lacerta vivipara)), bats, moor frog (Rana arvalis), great crested newt (Triturus cristatus), European nightjar (Caprimulgus europaeus), crickets, butterflies, and other insects. Roe deer (Capreolus capreolus) also use the ecoduct. There is a low fence at the entrance to block wild boar (Sus scrofa) as they are not desired in the areas on the other side.

Click here for images of wildlife fencing.

Click here for images of multifunctional underpasses.

Click here for images of wildlife underpasses.

For other images of wildlife overpasses (wildlife only) click here.

For images of multifunctional wildlife overpasses (wildlife, water, humans, non-motorized vehicles, motorized vehicles) click here.

For images of landscape bridges, road tunnels or very wide overpasses over longer road sections click here.

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All content © 2019 Marcel Huijser

Elk (Cervus canadensis), Cataloochee Valley, Great Smoky Mountains National Park, North Carolina, USA

Elk (Cervus canadensis), Cataloochee Valley, Great Smoky MountaiElk (Cervus canadensis), Cataloochee Valley, Great Smoky Mountains National Park, North Carolina, USA

Road ecology blog: Pool for amphibians on top of wildlife overpass.

Wildlife overpass Groote Heide, across A2 motorway (about 50 m wide), The Netherlands. This overpass connects forests, heath lands and inland sand dunes. Target species include Eurasian badger (Meles meles), pine marten (Martes martes) viviparous lizard or common lizard (Zootoca vivipara (formerly Lacerta vivipara)), bats, moor frog (Rana arvalis), great crested newt (Triturus cristatus), European nightjar (Caprimulgus europaeus), crickets, butterflies, and other insects. Roe deer (Capreolus capreolus) also use the ecoduct. There is a low fence at the entrance to block wild boar (Sus scrofa) as they are not desired in the areas on the other side.

Pool for amphibians on top of wildlife overpass Groote Heide, acWildlife overpass Groote Heide, across A2 motorway (about 50 m wide), The Netherlands. This overpass connects forests, heath lands and inland sand dunes. Target species include Eurasian badger (Meles meles), pine marten (Martes martes) viviparous lizard or common lizard (Zootoca vivipara (formerly Lacerta vivipara)), bats, moor frog (Rana arvalis), great crested newt (Triturus cristatus), European nightjar (Caprimulgus europaeus), crickets, butterflies, and other insects. Roe deer (Capreolus capreolus) also use the ecoduct. There is a low fence at the entrance to block wild boar (Sus scrofa) as they are not desired in the areas on the other side.

Lamar Valley in infrared, Yellowstone National Park, Wyoming, USA

Lamar Valley in infrared, Yellowstone National Park, Wyoming, USLamar Valley in infrared, Yellowstone National Park, Wyoming, USA

Road ecology blog: Fence to block wild boar from accessing wildlife overpass. Wildlife overpass Groote Heide, across A2 motorway (about 50 m wide), The Netherlands. This overpass connects forests, heath lands and inland sand dunes. Target species include Eurasian badger (Meles meles), pine marten (Martes martes) viviparous lizard or common lizard (Zootoca vivipara (formerly Lacerta vivipara)), bats, moor frog (Rana arvalis), great crested newt (Triturus cristatus), European nightjar (Caprimulgus europaeus), crickets, butterflies, and other insects. Roe deer (Capreolus capreolus) also use the ecoduct. There is a low fence at the entrance to block wild boar (Sus scrofa) as they are not desired in the areas on the other side.

Fence to block wild boar from accessing wildlife overpass GrooteWildlife overpass Groote Heide, across A2 motorway (about 50 m wide), The Netherlands. This overpass connects forests, heath lands and inland sand dunes. Target species include Eurasian badger (Meles meles), pine marten (Martes martes) viviparous lizard or common lizard (Zootoca vivipara (formerly Lacerta vivipara)), bats, moor frog (Rana arvalis), great crested newt (Triturus cristatus), European nightjar (Caprimulgus europaeus), crickets, butterflies, and other insects. Roe deer (Capreolus capreolus) also use the ecoduct. There is a low fence at the entrance to block wild boar (Sus scrofa) as they are not desired in the areas on the other side. Fence to block wild boar from accessing wildlife overpass GrooteWildlife overpass Groote Heide, across A2 motorway (about 50 m wide), The Netherlands. This overpass connects forests, heath lands and inland sand dunes. Target species include Eurasian badger (Meles meles), pine marten (Martes martes) viviparous lizard or common lizard (Zootoca vivipara (formerly Lacerta vivipara)), bats, moor frog (Rana arvalis), great crested newt (Triturus cristatus), European nightjar (Caprimulgus europaeus), crickets, butterflies, and other insects. Roe deer (Capreolus capreolus) also use the ecoduct. There is a low fence at the entrance to block wild boar (Sus scrofa) as they are not desired in the areas on the other side. Fence to block wild boar from accessing wildlife overpass GrooteWildlife overpass Groote Heide, across A2 motorway (about 50 m wide), The Netherlands. This overpass connects forests, heath lands and inland sand dunes. Target species include Eurasian badger (Meles meles), pine marten (Martes martes) viviparous lizard or common lizard (Zootoca vivipara (formerly Lacerta vivipara)), bats, moor frog (Rana arvalis), great crested newt (Triturus cristatus), European nightjar (Caprimulgus europaeus), crickets, butterflies, and other insects. Roe deer (Capreolus capreolus) also use the ecoduct. There is a low fence at the entrance to block wild boar (Sus scrofa) as they are not desired in the areas on the other side.

Road ecology blog: Pulling someone out of the ditch, Yellowstone National Park, Wyoming, USA. With the snow covered road it is often not possible to see where the pavement ends and where the ditch begins.... once the right tires go off the surface it is too late and the vehicle slides off the road. In this type of situation it is best to look at the yellow center line (when visible) and use that to pick your line rather than picking your line on where you think the edge of the road is. Note the elk in the background, on the road, on the slope.

Pulling someone out of the ditch, Yellowstone National Park, WyoPulling someone out of the ditch, Yellowstone National Park, Wyoming, USA. It is often not possible to see where the pavement ends and where the ditch begins.... once the right tires go off the surface it is too late and the vehicle slides off the road.

Pulling someone out of the ditch, Yellowstone National Park, WyoPulling someone out of the ditch, Yellowstone National Park, Wyoming, USA. It is often not possible to see where the pavement ends and where the ditch begins.... once the right tires go off the surface it is too late and the vehicle slides off the road.

Pulling someone out of the ditch, Yellowstone National Park, WyoPulling someone out of the ditch, Yellowstone National Park, Wyoming, USA. It is often not possible to see where the pavement ends and where the ditch begins.... once the right tires go off the surface it is too late and the vehicle slides off the road. Pulling someone out of the ditch, Yellowstone National Park, WyoPulling someone out of the ditch, Yellowstone National Park, Wyoming, USA. It is often not possible to see where the pavement ends and where the ditch begins.... once the right tires go off the surface it is too late and the vehicle slides off the road. Pulling someone out of the ditch, Yellowstone National Park, WyoPulling someone out of the ditch, Yellowstone National Park, Wyoming, USA. It is often not possible to see where the pavement ends and where the ditch begins.... once the right tires go off the surface it is too late and the vehicle slides off the road. Pulling someone out of the ditch, Yellowstone National Park, WyoPulling someone out of the ditch, Yellowstone National Park, Wyoming, USA. It is often not possible to see where the pavement ends and where the ditch begins.... once the right tires go off the surface it is too late and the vehicle slides off the road. Pulling someone out of the ditch, Yellowstone National Park, WyoPulling someone out of the ditch, Yellowstone National Park, Wyoming, USA. It is often not possible to see where the pavement ends and where the ditch begins.... once the right tires go off the surface it is too late and the vehicle slides off the road.

Landscapes: Snow covered creek, Yellowstone National Park, Wyoming, USA

Snow covered creek, Yellowstone National Park, Wyoming, USASnow covered creek, Yellowstone National Park, Wyoming, USA

Road ecology blog: Jump-out or escape ramp, allowing large and medium sized mammals to escape from the fenced road corridor, A2 motorway, The Netherlands

Jump-out or escape ramp, allowing large and medium sized mammalsJump-out or escape ramp, allowing large and medium sized mammals to escape from the fenced road corridor, A2 motorway, The Netherlands

Click here for more images of wildlife jump-outs or escape ramps.

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The cold way... Winter travel on snow covered roads, Wyoming, USA

Winter travel on snow covered roads, Wyoming, USAWinter travel on snow covered roads, Wyoming, USA Winter travel on snow covered roads, Wyoming, USAWinter travel on snow covered roads, Wyoming, USA

Road ecology blog: Wildlife overpass Groote Heide, across A2 motorway (about 50 m wide), The Netherlands. This overpass connects forests, heath lands and inland sand dunes. Target species include Eurasian badger (Meles meles), pine marten (Martes martes) viviparous lizard or common lizard (Zootoca vivipara (formerly Lacerta vivipara)), bats, moor frog (Rana arvalis), great crested newt (Triturus cristatus), European nightjar (Caprimulgus europaeus), crickets, butterflies, and other insects. Roe deer (Capreolus capreolus) also use the ecoduct. There is a low fence at the entrance to block wild boar (Sus scrofa) as they are not desired in the areas on the other side.

Wildlife overpass Groote Heide, across A2 motorway (about 50 m wWildlife overpass Groote Heide, across A2 motorway (about 50 m wide), The Netherlands. This overpass connects forests, heath lands and inland sand dunes. Target species include Eurasian badger (Meles meles), pine marten (Martes martes) viviparous lizard or common lizard (Zootoca vivipara (formerly Lacerta vivipara)), bats, moor frog (Rana arvalis), great crested newt (Triturus cristatus), European nightjar (Caprimulgus europaeus), crickets, butterflies, and other insects. Roe deer (Capreolus capreolus) also use the ecoduct. There is a low fence at the entrance to block wild boar (Sus scrofa) as they are not desired in the areas on the other side.

Wildlife overpass Groote Heide, across A2 motorway (about 50 m wWildlife overpass Groote Heide, across A2 motorway (about 50 m wide), The Netherlands. This overpass connects forests, heath lands and inland sand dunes. Target species include Eurasian badger (Meles meles), pine marten (Martes martes) viviparous lizard or common lizard (Zootoca vivipara (formerly Lacerta vivipara)), bats, moor frog (Rana arvalis), great crested newt (Triturus cristatus), European nightjar (Caprimulgus europaeus), crickets, butterflies, and other insects. Roe deer (Capreolus capreolus) also use the ecoduct. There is a low fence at the entrance to block wild boar (Sus scrofa) as they are not desired in the areas on the other side. Wildlife overpass Groote Heide, across A2 motorway (about 50 m wWildlife overpass Groote Heide, across A2 motorway (about 50 m wide), The Netherlands. This overpass connects forests, heath lands and inland sand dunes. Target species include Eurasian badger (Meles meles), pine marten (Martes martes) viviparous lizard or common lizard (Zootoca vivipara (formerly Lacerta vivipara)), bats, moor frog (Rana arvalis), great crested newt (Triturus cristatus), European nightjar (Caprimulgus europaeus), crickets, butterflies, and other insects. Roe deer (Capreolus capreolus) also use the ecoduct. There is a low fence at the entrance to block wild boar (Sus scrofa) as they are not desired in the areas on the other side.