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  • Vegetated Sand Filter.  Tanner Springs Park in the Pearl District of downtown Portland, Oregon is a modern-day experiment in sustainable design and stormwater management.  The water feature, designed by Herbert Dreiseitl is an effort to re-create the pre-industrial wetlands and riparian ecology of the original Tanner Creek that flowed to the nearby Willamette River in the early 1800s.  One sustainability feature of the park is the collection, treatment and recirculation of all rainwater that falls within the park.  Additional sustainability features include the re-use of basalt cobbles, or Belgian Blocks, for walkways and the re-use of rusty railroad rails for the undulating wall.
    Vegetated Sand Filter.jpg
  • Stormwater Management Facilities in the right-of-way provide water quality function before flows infiltrate at dry wells under the streets.  The engineered soil is the filter medium.  The inlet with steel grate is an overflow, to prevent backup flooding in the streets during storms of greater intensity or extended duration.  New Columbia project for the Housing Authority of Portland.
    Storm-Water-Swale-with-Overflow.jpg
  • Vegetated Filter Strip treats rain water runoff from parking lot before it reaches a swale which in turn discharges the stormwater into a nearby stream.   Vegetated filter strips are now a widely accepted best management practice (BMP) for low impact development.  They work on the principle of contact time and therefore require low runoff velocities.  This is achieved by maintaining low-angled slopes and avoiding flow-concentrating features such as curbs.
    Vegetated-Filter-Strip.jpg
  • Stormwater Management Facilities in the right-of-way provide water quality function before flows infiltrate at dry wells under the streets.  The engineered soil is the filter medium.  The inlet with steel grate is an overflow, to prevent backup flooding in the streets during storms of greater intensity or extended duration.  New Columbia project for the Housing Authority of Portland.
    Pocket-Swale-with-Overflow.jpg
  • Last Rays Filter Through Mist, Mount Tabor Park, Portland, Oregon. Photo 12/25/2008.
    AJH-12a-December-2015-Mount-Tabor-Pa...jpg
  • Stormwater Management Facilities in the right-of-way provide water quality function before flows infiltrate at dry wells under the streets.  The engineered soil is the filter medium.  The inlet with steel grate is an overflow, to prevent backup flooding in the streets during storms of greater intensity or extended duration.  New Columbia project for the Housing Authority of Portland.
    Bioswale-with-Overflow.jpg
  • Sunset on the west face of Chopicalqui 6,354m with the southwest ridge on the right skyline, and the north face of Huascarán Sur (South) 6,768m (right).  Viewed from Pisco Base Camp 4,700m. Huascarán National Park, Cordillera Blanca, Peru.  Nikon D200, 17-50/2.8. ND grad filter.
    Twilight Cairn, Peru
  • Last Rays Filter Through Mist, Mount Tabor Park, Portland, Oregon, USA. In 1903, John Charles Olmsted of the Massachusetts-based landscape design firm Olmsted Brothers recommended that a city park be developed at Mount Tabor.  Portland Parks Superintendent Emanuel T. Mische, who had worked at Olmsted Brothers, consulted with Olmsted on the park layout and integration of the reservoirs into the park design. Photo 12/25/2008.
    Last Rays, Diffused, Mt Tabor Park.jpg
  • Fynbos on Waaihoek Peak, Hex River Mountains, Cape Province, South Africa. Zebasberg 1,899m in the background. Nikon F90, Sigma 24/2.8. Singh-Ray ND grad filter. Fuji RDP. 1994
    Fynbos, Western Cape
  • This image, "Ebb Tide, Astoria" was previsualized.  However, what I hadn't pre-visualized was the constant rain.  Working in the pre-dawn darkness, I had to hold an umbrella with one hand while setting up tripod and camera with the other.  Astoria Bridge (4.1 mi / 6.5km long) spans the mouth of the Columbia River between Astoria, Oregon and Point Ellice near Megler, Washington. Construction was started in 1962 and completed in 1966.  Nikon D200, 17-50mm/2.8, ND filters.
    Ebb Tide, Astoria Bridge
  • Vegetated bioswale detail of stormwater facilities, Eastbank Esplanade, Madison Street Parking Lot, Portland, Oregon.
    Vegetated Swale Filter.jpg
  • The heartwarming experience of turtle hatchlings returning to the sea just after sunset on the sheltered Pacific Ocean beach of Playa la Ropa, Zihuatanejo, Guerrero, Mexico.  These green turtles (Chelonia mydas), once common, are now endangered and have been released by "turtle-saver" volunteers working to save them from extinction.  Releasing them just after sunset maximizes their chances of survival by evading predators, both natural and human.  Good luck little fellas!
    Turtle hatchlings, Zihuatanejo.jpg
  • Outlier Piling, Astoria, Oregon. Hundred-year-old pilings along Astoria's waterfront, that once supported a thriving fish processing and packing industry, Astoria, Oregon, USA.
    Outlier Piling, Columbia River, Asto...jpg
  • Boiler Relic, Columbia River, Astoria.  This repurposed ship's boiler, once located at the heart of a thriving fish processing and packing industry, stands as a stark reminder of the boom years for Astoria's waterfront beginning in the 1880s.  Astoria, Oregon, USA.
    Boiler Relic, Columbia River, Astori...jpg
  • Mooring Dolphin, Columbia River, Megler, Washington. Hundred-year-old pilings along the Columbia River, that once supported a thriving fish processing and packing industry around Astoria, Oregon, USA.
    Mooring Dolphin, Columbia River, Meg...jpg
  • Mount Tabor Park 2020 Calendar Back Cover, Portland, Oregon
    AJH_2020_Calendar-Mt-Tabor-Park-2-Ba...jpg
  • Seven Pilings, Columbia River, Astoria, Oregon. Hundred-year-old pilings along Astoria's waterfront, that once supported a thriving fish processing and packing industry, Astoria, Oregon, USA.
    Seven Pilings, Columbia River, Astor...jpg
  • Refuge, Columbia River, Astoria.  A ship in transit waits out a winter storm as it lashes the Astoria waterfront with rain squalls.  These hundred-year-old pilings once supported a thriving fish processing and packing industry, Astoria, Oregon, USA.
    Refuge, Columbia River, Astoria.jpg
  • This solitary rock about a mile off the Bay of Zihuatanejo is known by various names: La Piedra Solitaria, Roca Negra and Rock of Chequetan.  It is an important navigation aid to mariners and local fishermen, and a popular dive site amongst sport divers. Zihuatanejo, Mexico.
    La Piedra Solitaria Zihuatanejo.jpg
  • Net Loft, Columbia River, Astoria, Oregon.  The Uppertown Net Loft, also known as Alderbrook Station, was built on the Columbia River in 1897 by the Union Fisherman's Cooperative Packing Company, a union formed in 1896.  On 1 December 2007, a violent winter storm ripped off the top story, The strange row of window frames is all that remains of that top story.  The new, flatter roof was installed after the storm.  Astoria, Oregon, USA.
    Net Loft, Columbia River, Astoria.jpg
  • The Last Joist, Columbia River, Astoria, Oregon. Hundred-year-old pilings along Astoria's waterfront, that once supported a thriving fish processing and packing industry, Astoria, Oregon, USA.
    The Last Joist, Columbia River, Asto...jpg
  • Nine Legged Structure, Columbia River, Astoria.  This concrete structure, once located at the heart of a thriving fish processing and packing industry, is all that remains of the wooden pier and pilings that once surrounded it.  Astoria, Oregon, USA.
    Nine Legged Structure, Columbia Rive...jpg
  • Bull Run Lake 968m (3,175ft), with Mount Hood 3,424m (11,234ft) beyond.  This is the highest reservoir in the Bull Run Watershed and is celebrated for the high purity of its water.  This is the origin of Portland's drinking water.  Nikon D700, 24-70/2.8.
    Mt Hood Bull Run Lake Panorama.jpg
  • Mount Tabor Park 2020 Calendar Back Cover, Portland, Oregon
    AJH_13_Back-Cover-2020.jpg
  • Dam 1, a curved concrete gravity dam, constructed 1925-1929, in the 102-square-mile Bull Run watershed near Mount Hood, has a maximum reservoir capacity of 10 billion gallons, making it the primary contributor to the Portland Water System Distribution Area.  The spillway gates visible in this photo, added to the dam in 1955, increased the reservoir capacity from the original 8.8 billion gallons to 10 billion gallons.
    Spillway Dam 1 Bull Run.jpg
  • Cockade 3161m, Elephant 3109m and flat-topped Mlambonja Buttress 3007m (right), from the Xeni Valley near Xeni Cave, Mdedelelo Wilderness.  Xeni Peak is the broad-tapered sun-lit, free-standing column immediately left of uMlambonja Buttress (1961 p54).  The lower, closer, sunlit peak superimposed on Mlambonja Buttress is Mount Helga 2702m. Ukhahlamba-Drakensberg Park, KwaZulu-Natal, South Africa.  Nikon F4, 24/2.8D. Kodak E100SW. December 1996.
    Xeni Peak uMlambonja Drakensberg.jpg
  • Forest plants in the Bull Run watershed near Mount Hood, Oregon.  This is the origin of Portland's drinking water, which flows by gravity to the Mount Tabor reservoirs before entering the City's water distribution network.
    Forest plants 1 Bull Run.jpg
  • Solar eclipse 2017, Mount Tabor Park, Portland, Oregon. August 21, 2017.
    AJH_170821_1013.jpg
  • The Bull Run River is active salmon habitat, Bull Run watershed near Mount Hood, Oregon.
    Bull Run River Oregon.jpg
  • Path and forest plants in the Bull Run watershed near Mount Hood, Oregon.  This is the origin of Portland's drinking water, which flows by gravity to the Mount Tabor reservoirs before entering the City's water distribution network.
    Forest Plants and Path Bull Run.jpg
  • Drakensberg escarpment sunrise from Ntaba Ndanyazana 3084m, Ifidi.  Middle distance: Mnweni Needles, far distance: Cathedral and Cathkin ridges, Ukahlamba-Drakensberg Park, KwaZulu-Natal, South Africa. Nikon F90, 35-135/3.5. E100SW. December 1996.
    Mnweni Sunrise Drakensberg.jpg
  • Dam 1, a curved concrete gravity dam, constructed 1925-1929, in the 102-square-mile Bull Run watershed near Mount Hood, has a maximum reservoir capacity of 10 billion gallons, making it the primary contributor to the Portland Water System Distribution Area.
    Steps Dam Bull Run.jpg
  • Bull Run Lake 968m (3,175ft), with Mount Hood 3,424m (11,234ft) beyond.  This is the highest reservoir in the Bull Run Watershed and is celebrated for the high purity of its water.  This is the origin of Portland's drinking water.
    Mount Hood Bull Run Lake.jpg
  • Outlet valve at Bull Run Lake 968m (3,175ft), with Mount Hood 3,424m (11,234ft) beyond. This is the highest reservoir in the Bull Run Watershed and is celebrated for the high purity of its water. This is the origin of Portland's drinking water, which flows by gravity to the Mount Tabor reservoirs before entering the City's water distribution network.
    Valve Mount Hood Bull Run Lake.jpg
  • Hiker on Arendsig Ridge, above the uMlambonja River Valley. The red grass is rooigras (Themeda triandra). Above the cliffs is the Ngwavu Plateau and the Ganabu Ridge rising to the left. Ukhahlamba-Drakensberg Park, KwaZulu-Natal, South Africa.  Nikon F100; 24-50/3.3-4.5D. Kodak E100VS.
    uMlambonja River Valley Drakensberg.jpg
  • Flat-topped Cathkin Peak 3149m and Sterkhorn 2973m at sunrise from Monks Cowl Forest Station, Mdedelelo Wilderness. Ukhahlamba-Drakensberg Park, KwaZulu-Natal, South Africa.  Nikon F90, 24/2.8D. Fuji RDPII. April 1996.
    Cathkin Sterkhorn Drakensberg.jpg
  • Dam 1, a curved concrete gravity dam, constructed 1925-1929, in the 102-square-mile Bull Run watershed near Mount Hood, has a maximum reservoir capacity of 10 billion gallons, making it the primary contributor to the Portland Water System Distribution Area.  The spillway gates visible in this photo, added to the dam in 1955, increased the reservoir capacity from the original 8.8 billion gallons to 10 billion gallons.
    Stilling Basin Dam 1 Bull Run.jpg
  • Dam 1, a curved concrete gravity dam, constructed 1925-1929, in the 102-square-mile Bull Run watershed near Mount Hood, has a maximum reservoir capacity of 10 billion gallons, making it the primary contributor to the Portland Water System Distribution Area.  The spillway gates visible in this photo, added to the dam in 1955, increased the reservoir capacity from the original 8.8 billion gallons to 10 billion gallons.
    Spillway Gates Vertical Bull Run.jpg
  • Water level gauge and outlet valve at Bull Run Lake 968m (3,175ft). This is the highest reservoir in the Bull Run Watershed and is celebrated for the high purity of its water. This is the origin of Portland's drinking water, which flows by gravity to the Mount Tabor reservoirs before entering the City's water distribution network.
    Gauge and Valve Bull Run Lake.jpg
  • This image, "Ebb Tide, Columbia River, Astoria" was previsualized.  But what wasn't anticipated was the constant rain.  Working in the pre-dawn darkness, I had to hold an umbrella with one hand while setting up tripod and camera with the other.  The Astoria-Megler Bridge (4.1 mi / 6.5km long) spans the mouth of the Columbia River between Astoria, Oregon and Point Ellice near Megler, Washington. Construction was started in 1962 and completed in 1966.
    Ebb Tide, Columbia River, Astoria.jpg
  • Dam 1, a curved concrete gravity dam, constructed 1925-1929, in the 102-square-mile Bull Run watershed near Mount Hood, has a maximum reservoir capacity of 10 billion gallons, making it the primary contributor to the Portland Water System Distribution Area.  The spillway gates visible in this photo, added to the dam in 1955, increased the reservoir capacity from the original 8.8 billion gallons to 10 billion gallons.
    Spillway Gates Horizontal Bull Run.jpg
  • Dam 1, a curved concrete gravity dam, constructed 1925-1929, in the 102-square-mile Bull Run watershed near Mount Hood, has a maximum reservoir capacity of 10 billion gallons, making it the primary contributor to the Portland Water System Distribution Area.  The spillway gates visible in this photo, added to the dam in 1955, increased the reservoir capacity from the original 8.8 billion gallons to 10 billion gallons.
    Dam 1 Gatehouse Bull Run.jpg
  • Outlet valve at Bull Run Lake 968m (3,175ft), with Mount Hood 3,424m (11,234ft) beyond. This is the highest reservoir in the Bull Run Watershed and is celebrated for the high purity of its water. This is the origin of Portland's drinking water, which flows by gravity to the Mount Tabor reservoirs before entering the City's water distribution network.
    Mt Hood and Valve Bull Run Lake.jpg
  • Red dawn and reflection in a wetland marsh near Tugela Falls on the Amphitheatre summit plateau.  In profile, left to right are Eastern Buttress 3047m, Devil's Tooth, Inner Tower and Mount Oompie. Ukhahlamba-Drakensberg Park, KwaZulu-Natal, South Africa.  Nikon F90, 24/2.8D. E100SW. December 1996.
    Red Dawn Summit Wetland Drakensberg.jpg
  • The north face of Giant's Castle 3315m and Bushman's River Valley, framed by Mtchichi (Leucosidea sericea) the common woody shrub of the Drakensberg.  Its gnarled and twisted trunk makes it look old, hence its Afrikaans name "ouhout" (old wood).   Ukhahlamba-Drakensberg Park, KwaZulu-Natal, South Africa.  Nikon D200; 20-35/2.8.
    Giants Castle Bushmans River Valley ...jpg
  • Sunrise Alpenglow warms the basalt cliffs of Beacon Buttress 3121m (10,240 ft), also known as Western Buttress, with Eastern Buttress 3047m (9,996 ft), Devil's Tooth 3019m (9,902 ft) and Inner Tower 3044m (9,986 ft). Ukhahlamba-Drakensberg Park, KwaZulu-Natal, South Africa.  Nikon F90, 24/2.8D. Fuji RDP. September 1994
    Beacon Buttress Drakensberg.jpg
  • Sun stars radiate from the crescent-shaped sliver of sun not obscured by the moon.  This photo was taken at the height of the solar eclipse, at 0922 PTD on August 21, 2017.   This was only a partial eclipse, as viewed from Mount Tabor Park in Portland, Oregon. These radiating sun stars are caused by the aperture blades in the lense closed down to form a small iris.  Nikon D700, Nikon AF Nikkor 300mm f/4 IF-ED, Nikon TC-301.
    AJH_170821_1040.jpg
  • Reeds and planter detail of stormwater facilities, Vera Katz Sliver Park, Portland, Oregon.
    Stormwater Planter Reeds.jpg
  • Tailrace at Dam 1, a curved concrete gravity dam, constructed 1925-1929, in the 102-square-mile Bull Run watershed near Mount Hood, has a maximum reservoir capacity of 10 billion gallons, making it the primary contributor to the Portland Water System Distribution Area.  This is the origin of Portland's drinking water, which flows by gravity to the Mount Tabor reservoirs before entering the City's water distribution network.
    Red Tailrace Dam 1 Bull Run.jpg
  • Dam 1, a curved concrete gravity dam, constructed 1925-1929, in the 102-square-mile Bull Run watershed near Mount Hood, has a maximum reservoir capacity of 10 billion gallons, making it the primary contributor to the Portland Water System Distribution Area.
    Dam 1 Bull Run Watershed.jpg
  • Forest plants in the Bull Run watershed near Mount Hood, Oregon.  This is the origin of Portland's drinking water, which flows by gravity to the Mount Tabor reservoirs before entering the City's water distribution network.
    Forest plants 2 Bull Run.jpg
  • The Living Roof of the California Academy of Sciences building within Golden Gate Park, and adjacent to the De Young Museum.  The roof provides stormwater management for both flow reduction and water quality.  The living roof contains over 40 native California plant species and provides habitat for a wide variety of wildlife, particularly butterflies.  The rooftop's seven undulating green hillocks pay homage to the iconic topography of San Francisco and blurs the boundary between building and parkland.  Living roofs significantly reduce Heat Island Effect, and the vent windows help manage interior climate.
    Living-Roof.jpg
  • Navigation buoy and stacked pallets on the Columbia River, Astoria, Oregon.  Dawn 30-second exposure at f/16.  .Nikon F4, 20mm/2.8.  Fuji Velvia RVP 50.  Singh-Ray ND and ND grad filters.   Rendered in black & white using Nik Silver Efex Pro and Photoshop CS5.
    Buoy and Stacked Pallets, Astoria.jpg
  • Landscaped stormwater planter strip manages rain water from the "first flush" during a rainfall event.  Stormwater has filled the first chamber and is overtopping a weir and filling the second chamber.  Green streets collect stormwater runoff and route it through facilities like this planter where vegetation and soils filter pollutants before allowing water to soak into the ground.  These facilities replenish groundwater and enhance neighborhood green spaces.  Green streets require routine cleaning and maintenance.  This facility is on NE 47th Avenue at NE Davis Street in Portland, Oregon.
    Green-Street-Stormwater-Planter.jpg
  • Landscaped stormwater planter strip manages rain water from the "first flush" during a rainfall event.  Stormwater has filled the first chamber and is overtopping a weir and filling the second chamber.  Green streets collect stormwater runoff and route it through facilities like this planter where vegetation and soils filter pollutants before allowing water to soak into the ground.  These facilities replenish groundwater and enhance neighborhood green spaces.  Green streets require routine cleaning and maintenance.  This facility is on NE 47th Avenue at NE Davis Street in Portland, Oregon.
    Storm-Water-Planter-First-Flush.jpg
  • Rounded river pebbles are used in swales and stormwater planters to protect filter media from erosive flow velocities.
    Rain-Garden-Detail-Pebbles.jpg
  • Effective stormwater management in a dense urban area.  Swales and stormwater planters collect stormwater from roof downspouts, parking lot and street.  Appropriate vegetation filters out pollutants in the stormwater before it soaks into the ground, naturally recharging groundwater.  RiverEast Center Stormwater Management facility - a public-private stormwater management partnership (PPP) in Portland, Oregon.
    Roof-Downspout-and-Weir.jpg
  • Pink sunset light filters through dissipating storm clouds in the upper Ndedema River basin, Skoongesigt Cave, Mdedelelo Wilderness Area. Ukhahlamba-Drakensberg Park, KwaZulu-Natal, South Africa. Chinon CM5, 28/2.8. Fuji RD. December 1988.
    Ndedema Storm Drakensberg.jpg
  • Effective stormwater management in a dense urban area.  Swales and stormwater planters collect stormwater from roof downspouts, parking lot and street.  Appropriate vegetation filters out pollutants in the stormwater before it soaks into the ground, naturally recharging groundwater.  RiverEast Center Stormwater Management facility - a public-private stormwater management partnership (PPP) in Portland, Oregon.
    Swale-and-Jogger-in-Rain.jpg
  • Navigation buoy and stacked pallets on the Columbia River, Astoria, Oregon.  Dawn 30-second exposure at f/16.  Nikon F4, 20mm/2.8.  Fuji Velvia RVP 50.  Singh-Ray ND and ND grad filters.   Rendered in black & white using Nik Silver Efex Pro and Photoshop CS5.
    Buoy and Stacked Pallets, Astoria
  • Effective stormwater management in a dense urban area.  Swales and stormwater planters collect stormwater from roof downspouts, parking lot and street.  Appropriate vegetation filters out pollutants in the stormwater before it soaks into the ground, naturally recharging groundwater.  RiverEast Center Stormwater Management facility - a public-private stormwater management partnership (PPP) in Portland, Oregon.
    Swale-Jogger-and-Public-Path.jpg
  • Vegetation in this stormwater curb extension filters out pollutants in the stormwater before it soaks into the ground, naturally recharging groundwater.  Stormwater management facilities like this one are are also known as Green Street treatments.  NW 21st Avenue and Raleigh Street, Portland, Oregon.
    Green-Street-Planter-Grasses.jpg
  • A public-private stormwater management partnership (PPP) - the first of its kind in Portland.  Runoff from the public street flows into a treatment swale on private property, where vegetation filters out pollutants before it soaks into the ground, naturally recharging groundwater.  RiverEast Center Stormwater Management facility in Portland, Oregon.
    Public-Private-Partnership-Stormwate...jpg
  • Effective stormwater management in a dense urban area.  Swales and stormwater planters collect stormwater from roof downspouts, parking lot and street.  Appropriate vegetation filters out pollutants in the stormwater before it soaks into the ground, naturally recharging groundwater.  RiverEast Center Stormwater Management facility - a public-private stormwater management partnership (PPP) in Portland, Oregon.
    Parking-Lot-Stormwater-Swale.jpg
  • Hundred-year-old water distribution control valves at Gatehouse 1, Reservoir 1, Mount Tabor Park, Portland.  Photo taken 28 March 2008.  Soon after this photo was taken, one valve was overhauled, one was replaced by a modern valve, and the platform was wrapped in a reinforced security cage, making this image impossible to repeat.  The image was made at night; the vavles illuminated with two lights, filtered with blue and orange gels respectively.
    4_April.jpg
  • Hundred-year-old water distribution control valves at Gatehouse 1, Reservoir 1, Mount Tabor Park, Portland, Oregon, USA.  Photo taken 28 March 2008.  Soon after this photo was taken, one valve was overhauled, one was replaced by a modern valve, and the platform was wrapped in a reinforced security cage, making this image impossible to repeat.  The image was made at night; the valves illuminated with two lights, filtered with blue and orange gels respectively.
    Valves Reservoir 1, Mt Tabor Park.jpg
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