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  • The Oregon State Office Building (left) and twin glass spire towers of the Oregon Convention Center dominate the urban skyline in the Lloyd District neighborhood of Portland, Oregon. The State Office Building was designed by the architecture firm of GBD Architects and the Convention Center was designed by Zimmer Gunsul Frasca Architects (ZGF).  Mount Tabor, an extinct volcano within the city limits, is visible in the background.
    Oregon Convention Center Portland.jpg
  • The full moon rises over Mount Tabor Park, framed by the glass towers of the Oregon Convention Center, Portland, Oregon. This full moon appearing on the 31 July 2015 is called a Blue Moon, which refers to the second of two full moons appearing in the same calendar month. The last time this happened was in 2012, and another one isn't due until 2018.
    Oregon Convention Center Blue Moon.jpg
  • Oregon Geology sign describing Abert Rim, the 760-meter-high (2,500 ft) fault scarp (photo background), formed during the Miocene Period by block faulting.  The 250m (800 ft) sheer-sided basalt cap also forms the bed of Lake Abert on the adjacent block to the west.  Hwy 31, Valley Falls, Lake County, Oregon.
    Oregon Geology Sign, Abert Rim, Horiz
  • Mel gets Oregon Geology ... sign describing Abert Rim, the 760-meter-high (2,500 ft) fault scarp (photo background), formed during the Miocene Period by block faulting.  The 250m (800 ft) sheer-sided basalt cap also forms the bed of Lake Abert on the adjacent block to the west.  Hwy 31, Valley Falls, Lake County, Oregon.
    Oregon Geology Sign, Abert Rim, Person
  • Lewis Creek Pedestrian Bridge, a wooden bridge spanning Lewis Creek at Lewis Creek Park on the north shore of Foster Reservoir, Sweet Home, Linn County, Oregon.  Venue for the Best in the West Triathlon, a Half Ironman triathlon on 10 September 2011.
    lewis-creek-bridge-foster-lake-orego...jpg
  • Oregon Geology sign describing Abert Rim, the 760-meter-high (2,500 ft) fault scarp (photo background), formed during the Miocene Period by block faulting.  The 250m (800 ft) sheer-sided basalt cap also forms the bed of Lake Abert on the adjacent block to the west.  Hwy 31, Valley Falls, Lake County, Oregon.
    Oregon Geology Sign, Abert Rim, Vertical
  • The new Sauvie Island Bridge, spanning the Multnomah Channel, was opened in 2008.  This tied-arch design with a 360ft (110m) span replaced the original 1950 Parker truss bridge with a 200ft (61m) main span, after cracks were discovered in 2001.  Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT).
    AJH_221012_1274.jpg
  • The new Sauvie Island Bridge, spanning the Multnomah Channel, was opened in 2008.  This tied-arch design with a 360ft (110m) span replaced the original 1950 Parker truss bridge with a 200ft (61m) main span, after cracks were discovered in 2001.  Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT).
    AJH_221012_1278.jpg
  • The new Sauvie Island Bridge, spanning the Multnomah Channel, was opened in 2008.  This tied-arch design with a 360ft (110m) span replaced the original 1950 Parker truss bridge with a 200ft (61m) main span, after cracks were discovered in 2001.  Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT).
    AJH_221012_1268.jpg
  • Reservoir 6 headhouse, Mount Tabor Park,  Portland, Oregon, USA.
    AJH-09a-September-2015-Mount-Tabor-P...jpg
  • The new Sauvie Island Bridge, spanning the Multnomah Channel, was opened in 2008.  This tied-arch design with a 360ft (110m) span replaced the original 1950 Parker truss bridge with a 200ft (61m) main span, after cracks were discovered in 2001.  Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT).
    AJH_221012_1282.jpg
  • The new Sauvie Island Bridge, spanning the Multnomah Channel, was opened in 2008.  This tied-arch design with a 360ft (110m) span replaced the original 1950 Parker truss bridge with a 200ft (61m) main span, after cracks were discovered in 2001.  Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT).
    AJH_221012_1280.jpg
  • The new Sauvie Island Bridge, spanning the Multnomah Channel, was opened in 2008.  This tied-arch design with a 360ft (110m) span replaced the original 1950 Parker truss bridge with a 200ft (61m) main span, after cracks were discovered in 2001.  Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT).
    AJH_221012_1275.jpg
  • "Memory 99" is an outdoor steel sculpture designed by Lee Kelly, installed at the north end of the North Park Blocks in downtown Portland, Oregon.  The two-ton sculpture is fabricated from Corten steel, giving it a stable, rusted appearance.  The sculpture is located at the entrance to the Pacific Northwest College of Art’s (PNCA) Arlene and Harold Schnitzer Center for Art and Design and was dedicated in 2012.
    Lee Kelly Memory Sculpture.jpg
  • The new Sauvie Island Bridge, spanning the Multnomah Channel, was opened in 2008.  This tied-arch design with a 360ft (110m) span replaced the original 1950 Parker truss bridge with a 200ft (61m) main span, after cracks were discovered in 2001.  Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT).
    AJH_221012_1279.jpg
  • Hand-painted canvases depicting salmon stretch as far as the eye can see along the banks of the Willamette River at the Oregon Trout Portland Triathlon, sponsored by The Freshwater Trust. Photo: 23 August 2009.  The Freshwater Trust is a not-for-profit organization that works to preserve and restore freshwater ecosystems through water health and fish recovery, under the Clean Water & Endangered Species Acts.
    AJH_090823_0423.jpg
  • Cobblestones on SE Belmont Street, Portland, Oregon.
    Cobblestones
  • The new Sauvie Island Bridge, spanning the Multnomah Channel, was opened in 2008.  This tied-arch design with a 360ft (110m) span replaced the original 1950 Parker truss bridge with a 200ft (61m) main span, after cracks were discovered in 2001.  Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT).
    AJH_221012_1273.jpg
  • The new Sauvie Island Bridge, spanning the Multnomah Channel, was opened in 2008.  This tied-arch design with a 360ft (110m) span replaced the original 1950 Parker truss bridge with a 200ft (61m) main span, after cracks were discovered in 2001.  Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT).
    AJH_221012_1270.jpg
  • Ship passing the Astoria-Megler Bridge (1966) spans the mouth of the Columbia River between Astoria, Oregon and Point Ellice near Megler, Washington. The bridge type is a steel cantilever through truss, designed jointly by the state highway departments of Oregon and Washington. Construction was started in 1962 and completed in 1966. Total length: 4.1 mi / 6.5km.
    AJH_081227_2567.jpg
  • Reservoir 6 headhouse, Mount Tabor Park,  Portland, Oregon, USA.
    AJH-04b-April-2015-Mount-Tabor-Park-...jpg
  • Reservoir 5 at dusk, Mount Tabor Park, Portland, Oregon.
    AJH-08a-August-2015-Mount-Tabor-Park...jpg
  • Original Light Fixture, Mount Tabor Park, Portland, Oregon, USA.
    AJH-07b-July-2015-Mount-Tabor-Park-C...jpg
  • Drinking water Reservoir 5, Mount Tabor Park Portland, Oregon, USA.
    AJH-06b-June-2015-Mount-Tabor-Park-C...jpg
  • Statue in Mt Tabor Park of Harvey W. Scott, 1838-1910. Inscription states: "Pioneer, Editor, Publisher and molder of public opinion in Oregon and the nation." He was editor of the The Oregonian newspaper from 1866-1872. The statue was found toppled to the ground on the morning of 20 October 2020 following a series of statue removals during racial justice protests in Portland. On 20 February 2021, a sculpture entitled Bust of York, by an unidentified artist, appeared on the same pedestal.
    06-June-2014.jpg
  • Lewis Creek Pedestrian Bridge, a wooden bridge spanning Lewis Creek at Lewis Creek Park on the north shore of Foster Reservoir, Sweet Home, Linn County, Oregon.
    AJH_110910_4755.jpg
  • Illumination Rock 2,909m (9,543ft) and Illumination Saddle 2,865m (9,400ft).  Illumination Rock is a spectacular spire of rotten basalt on the southwest side of Mt Hood, a stratovolcano in the Cascade Volcanic Arc of Northern Oregon.  Powerful glacial forces have eroded down a former rock ridge, leaving this sprire shaped like the fin of a fish.  The mountain's twelve glaciers are thinning as a result of glacial retreat.
    Illumination Rock, Mt Hood
  • The new Sauvie Island Bridge, spanning the Multnomah Channel, was opened in 2008.  This tied-arch design with a 360ft (110m) span replaced the original 1950 Parker truss bridge with a 200ft (61m) main span, after cracks were discovered in 2001.  Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT).
    AJH_221012_1281.jpg
  • The new Sauvie Island Bridge, spanning the Multnomah Channel, was opened in 2008.  This tied-arch design with a 360ft (110m) span replaced the original 1950 Parker truss bridge with a 200ft (61m) main span, after cracks were discovered in 2001.  Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT).
    AJH_221012_1276.jpg
  • The new Sauvie Island Bridge, spanning the Multnomah Channel, was opened in 2008.  This tied-arch design with a 360ft (110m) span replaced the original 1950 Parker truss bridge with a 200ft (61m) main span, after cracks were discovered in 2001.  Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT).
    AJH_221012_1277.jpg
  • The new Sauvie Island Bridge, spanning the Multnomah Channel, was opened in 2008.  This tied-arch design with a 360ft (110m) span replaced the original 1950 Parker truss bridge with a 200ft (61m) main span, after cracks were discovered in 2001.  Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT).
    AJH_221012_1269.jpg
  • The new Sauvie Island Bridge, spanning the Multnomah Channel, was opened in 2008.  This tied-arch design with a 360ft (110m) span replaced the original 1950 Parker truss bridge with a 200ft (61m) main span, after cracks were discovered in 2001.  Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT).
    AJH_221012_1272.jpg
  • Gatehouse 1 and Dosing House at Reservoir 1, one of three open reservoirs at Mount Tabor Park and of five total in Portland.  The 3 open reservoirs in Mount Tabor Park, with their ancillary structures, were placed in the National Register of Historic Places on January 15, 2004.  Environmental Protection Agency (EPA) regulation: Long Term 2 Enhanced Surface Water Treatment Rule, referred to as the LT2 rule imposes new requirements that open water reservoirs be covered, buried or additionally treated.  This applies to Portland's five open reservoirs and to the unfiltered Bull Run source supplying them. Mount Tabor Park, Portland, Oregon, USA.
    AJH-05a-May-2015-Mount-Tabor-Park-Ca...jpg
  • The beautiful red and yellow leaves that fall from deciduous trees are a splendid sign of Autumn.  Located on an extinct volcanic cinder cone, and designed in 1909 by Frederick Law Olmsted and John Charles Olmsted, this urban park celebrates its centennial in 2009/2010, at a time when the future of the beloved open water reservoirs within the park is threatened by new EPA regulations.  Mount Tabor Park, Portland, Oregon, USA.  Nikon F4, 20-35/2.8D. Fuji RVP 50.  Photo: November 2001.
    AJH-10b-October-2015-Mount-Tabor-Par...jpg
  • Sunrise on Waldo Lake 1650m (5,414ft).  Waldo Lake is the headwaters of the North Fork of the Middle Fork of the Willamette River, and the only lake in the Oregon Scenic Waterways System.  Mt Ray 2134m (7,002ft) is visible on skyline at left, while the summit of Fuji Mountain 2177m (7,144ft) lies partially obscured by cloud (center).
    Waldo-Lake-Shoreline-Wilderness.jpg
  • Last Rays Filter Through Mist, Mount Tabor Park, Portland, Oregon. Photo 12/25/2008.
    AJH-12a-December-2015-Mount-Tabor-Pa...jpg
  • Reservoir 5 inlet weir from the dosing house, Mount Tabor Park, Portland, Oregon, USA.
    AJH-08b-August-2015-Mount-Tabor-Park...jpg
  • Island silhouette on Waldo Lake 1650m (5,414ft), with sunset over Klovdahl Bay.  Viewed from Shadow Bay on the east shore.  Waldo Lake is the headwaters of the North Fork of the Middle Fork of the Willamette River, and the only lake in the Oregon Scenic Waterways System.
    Waldo-Lake-Island-Silhouette-Horizon...jpg
  • Castle Crags from Illumination Saddle 2,865m (9,400ft), with Leuthold Couloir (FA 1932) far left, and the Yocum Ridge above the couloir.  Castle Crag is a spectacular spire of rotten basalt on the southwest side of Mt Hood, a stratovolcano in the Cascade Volcanic Arc of Northern Oregon.  Powerful glacial forces have eroded down a former rock ridge, leaving this fantasy sprire.  The mountain's twelve glaciers are thinning as a result of glacial retreat.
    Castle Crags, Mt Hood
  • Hand-painted canvases depicting salmon stretch as far as the eye can see along the banks of the Willamette River at the Oregon Trout Portland Triathlon, sponsored by The Freshwater Trust. Photo: 23 August 2009.  The Freshwater Trust is a not-for-profit organization that works to preserve and restore freshwater ecosystems through water health and fish recovery, under the Clean Water & Endangered Species Acts.
    AJH_090823_0455.jpg
  • Remains of the railroad trestle at Trestle Bay, Fort Stevens, built in 1885 for construction of the South Jetty at the Columbia River Bar. Hammond, Oregon.
    south-jetty-railroad-trestle-columbi...jpg
  • Purple crocus in bloom, Mount Tabor Park, Portland, Oregon, USA.
    AJH-02b-February-2015-Mount-Tabor-Pa...jpg
  • Historic light fixture and firs, Mount Tabor Park, Portland, Oregon, USA
    AJH-10a-October-2015-Mount-Tabor-Par...jpg
  • Acer circinatum (Vine Maple), Mount Tabor Park, Portland, Oregon, USA
    AJH-09b-September-2015-Mount-Tabor-P...jpg
  • Fremont Bridge (1973) at night, reflected in the Willamette River with Portland's downtown skyline beyond.  With a main span of 383m (1,255ft), the Fremont Bridge has the longest span of any bridge in Oregon.
    fremont-bridge-night-reflection-port...jpg
  • 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. This is one of three open reservoirs at Mt Tabor Park and of five total in Portland.  The 3 open reservoirs in Mount Tabor Park were placed in the National Register of Historic Places on January 15, 2004.  Environmental Protection Agency (EPA) regulation: Long Term 2 Enhanced Surface Water Treatment Rule, referred to as the LT2 rule imposes new requirements that open water reservoirs be covered, buried or additionally treated.  This applies to Portland's five open reservoirs and to the unfiltered Bull Run sourse supplying them. Portland, Oregon, USA.
    AJH-12b-December-2015-Mount-Tabor-Pa...jpg
  • Empty Reservoir 1, Mount Tabor Park, Portland, Oregon, USA.
    AJH-11a-November-2015-Mount-Tabor-Pa...jpg
  • Island silhouette on Waldo Lake 1650m (5,414ft), with sunset over Klovdahl Bay.  Viewed from Shadow Bay on the east shore.  Waldo Lake is the headwaters of the North Fork of the Middle Fork of the Willamette River, and the only lake in the Oregon Scenic Waterways System.
    Waldo-Lake-Island-Silhouette-Vertica...jpg
  • Cobblestones on SE Belmont Street, Portland, Oregon.
    Cobblestones
  • Panorama view of the Portland downtown skyline and Willamette River from Hawthorne Bridge to Morrison Bridge, showing the swim leg of the Oregon Trout Portland Triathlon, sponsored by The Freshwater Trust, 31 August 2008.  The Freshwater Trust is a not-for-profit organization that works to preserve and restore freshwater ecosystems through water health and fish recovery, under the Clean Water & Endangered Species Acts.
    portland-downtown-skyline-panorama-t...jpg
  • Patterns in beach sand in this close-up view are reminiscent of Chinese art, depicting the pointed rock spires of Huangshan.  Cannon Beach, Oregon.
    Huangshan Spire Sand Patterns Cannon...jpg
  • The Bull Run River is active salmon habitat, Bull Run watershed near Mount Hood, Oregon.
    Bull Run River Oregon.jpg
  • Sedum oreganum / Oregon Stonecrop.  Sedum is a large family of hardy succulents commonly known as stonecrop.  Many Sedum varieties have the necessary characteristics for ecoroofs, namely adaptability to harsh growing conditions, need for minimal maintenance and irrigation, ability to grow in shallow soil depths, and ability to establish and spread quickly.
    Green-Roof-Sedum-oreganum_Oregon-Sto...jpg
  • Waterfall detail, Nehalem River, Oregon.
    Waterfall Nehalem River Oregon Coast.jpg
  • Winter Storm, Cannon Beach, Oregon.
    Winter Ocean Storm Cannon Beach Oreg...jpg
  • Surfers and Tillamook Rock Light House, Oregon.
    Surfers Tillamook Rock Lighthouse Pa...jpg
  • Oregon Coast, Hug Point State Park
    Hug Point State Park Oregon.jpg
  • Haystack Rock and one of "The Needles" - sea stacks on the Oregon Coast at Cannon Beach.
    Haystack Rock Yin Yang Oregon.jpg
  • Franklin High School's north facade is bathed in warm evening light in 2018, after completion of an extensive seismic upgrade and remodel project. Between 2015 and 2017, the school was modernized and expanded, with funding from a $482 million bond measure in 2012. The modernization included a new arts center, a new gym, biomedical, and culinary arts building, seismic retrofitting, and a new entrance. The main building was designed by Floyd Naramore, modeled on the Colonial Revival architectural style, and completed in 1917.
    franklin-high-school-portland-oregon.jpg
  • The new Sauvie Island Bridge was assembled in Portland and floated down the Willamette River and Multnomah Channel, then guided into position alongside the old 1950 bridge on December 28, 2007. The original Parker truss bridge (green paint, background) built in 1950 with a 200ft (61m) main span, was replaced with this tied-arch design with a 360ft (110m) span, after cracks were discovered in 2001. The new bridge was opened in 2008. Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT). Portland Oregon USA.
    AJH_071228_1763.jpg
  • The new Sauvie Island Bridge was assembled in Portland and floated down the Willamette River and Multnomah Channel, then guided into position alongside the old 1950 bridge on December 28, 2007. The original Parker truss bridge (green paint, background) built in 1950 with a 200ft (61m) main span, was replaced with this tied-arch design with a 360ft (110m) span, after cracks were discovered in 2001. The new bridge was opened in 2008. Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT). Portland Oregon USA.
    AJH_071228_1761.jpg
  • The new Sauvie Island Bridge was assembled in Portland and floated down the Willamette River and Multnomah Channel, then guided into position alongside the old 1950 bridge on December 28, 2007. The original Parker truss bridge (green paint, background) built in 1950 with a 200ft (61m) main span, was replaced with this tied-arch design with a 360ft (110m) span, after cracks were discovered in 2001. The new bridge was opened in 2008. Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT). Portland Oregon USA.
    AJH_071228_1759.jpg
  • The new Sauvie Island Bridge being delivered down the Willamette River to the construction site. The new bridge was assembled in Portland and floated down the Willamette River and Multnomah Channel, then guided into position alongside the old 1950 bridge on December 28, 2007. The new bridge was opened in 2008. Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT). Portland Oregon USA.
    AJH_071228_1754.jpg
  • Supermoon rises over Mount Tabor Park and Mount Hood 11,239 ft, Portland, Oregon
    Haliburton-2016-Calendar-Cover1-Mt-T...jpg
  • Richardson Bridge (1912) is a rare example of a double-intersection Warren through truss design. A Warren truss (or equilateral truss) utilizes equilateral triangles in its truss geometry for ultimate weight-saving efficiency. This bridge has been moved twice, but remaining within Oregon. Originally built in 1912 over the Crooked River in Crook County, it was relocated in 1956 to a crossing of the Siuslaw River in Lane County, and finally, in 1986, relocated to its current location in West Eugene and converted to a pedestrian-bicycle crossing of Amazon Creek for the Fern Ridge Trail. Partial dismantling for the 1956 and 1986 relocations saw the original rivet fasteners being replaced with modern-era high strength bolts. Notable is the absence of upper lateral bracing. Lane County, Oregon, USA.
    AJH_221115_1613_MA.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-columbia-river.jpg
  • Mariners' Warning.  The remains of the wreck of the Peter Iredale contrast with the warm glow of two fishing vessels beyond the horizon, working beneath a Pacific winter squall hitting the Oregon coast at midnight.  Once a two-thousand ton four-masted steel barque, this bow section is all that remains of the sailing vessel that ran aground on 25 October 1906.  Nikon D700, 20-35/2.8D.
    peter-iredale-shipwreck-fishing-vess...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
  • Whilamut Passage Bridge (2011 & 2013), official name for the Willamette River Interstate-5 Bridges, a pair of new deck arch concrete bridges spanning the Willamette River at Eugene in Lane County, Oregon. The name honors the area’s native population. Construction began in 2009; the west span was completed in 2011, and the east span was completed and opened in August 2013. They carry Interstate-5 traffic and replaced an earlier bridge completed in 1961. Contractors: Hamilton Construction Company / Slayden Construction. Lead Engineers: OBEC Consulting Engineers / TY Lin International. Owner: Oregon Department of Transportation (ODOT). The Knickerbocker Bicycle Bridge (1980) is visible in background.
    AJH_221117_1879.jpg
  • Ferry Street Bridge (1950), also called Coburg Road Bridge for the road that it carries, is a two-span continuous Warren through truss steel bridge, with polygonal top chord, spanning the Willamette River. It is located near downtown Eugene, where the city’s founder Eugene Skinner once operated a ferry service. The bridge has long multi-beam concrete approach spans, accounting for the flood plain and floodway corresponding to the river hydrology. The bridge was constructed in 1950 – replacing its predecessor from 1876 – and was extensively rehabilitated in 1999 by Mowat Construction Company. Notable features are its mid-span pier (mid river), supporting a continuous truss, ornamental lighting, and separated pedestrian/bicycle walkways on both sides, supported by curved cantilever sidewalk brackets. Lane County, Oregon, USA.
    AJH_221116_1697.jpg
  • Booth-Kelly Railroad Bridge (1882), now called Hayden Bridge, is a single span Whipple through truss spanning the McKenzie River in Springfield. A Whipple truss is a (stronger) variation of the Pratt truss, also called a “Double Intersection Pratt”, characterized by diagonal tension members crossing adjacent verticals, thereby spanning two panels instead of just one for the Pratt truss. It is considered the oldest surviving bridge in Oregon, while rare and significant for its wrought iron Phoenix columns. This bridge has been moved once. Originally built in 1882 by Phoenixville Bridge Works at Corrine, Utah, it was dismantled and relocated in 1901 to its current location to serve the since abandoned Weyerhaeuser Logging Railway. The bridge was abandoned in 1987, then decked for pedestrian use and reopened in 2019. Notable also is the use of longitudinal bracing rods beneath the bottom chord bracing the deck beams. Lane County, Oregon, USA.
    AJH_221116_1739.jpg
  • Booth-Kelly Railroad Bridge (1882), now called Hayden Bridge, is a single span Whipple through truss spanning the McKenzie River in Springfield. A Whipple truss is a (stronger) variation of the Pratt truss, also called a “Double Intersection Pratt”, characterized by diagonal tension members crossing adjacent verticals, thereby spanning two panels instead of just one for the Pratt truss. It is considered the oldest surviving bridge in Oregon, while rare and significant for its wrought iron Phoenix columns. This bridge has been moved once. Originally built in 1882 by Phoenixville Bridge Works at Corrine, Utah, it was dismantled and relocated in 1901 to its current location to serve the since abandoned Weyerhaeuser Logging Railway. The bridge was abandoned in 1987, then decked for pedestrian use and reopened in 2019. Notable also is the use of longitudinal bracing rods beneath the bottom chord bracing the deck beams. Lane County, Oregon, USA.
    AJH_221116_1731.jpg
  • Booth-Kelly Railroad Bridge (1882), now called Hayden Bridge, is a single span Whipple through truss spanning the McKenzie River in Springfield. A Whipple truss is a (stronger) variation of the Pratt truss, also called a “Double Intersection Pratt”, characterized by diagonal tension members crossing adjacent verticals, thereby spanning two panels instead of just one for the Pratt truss. It is considered the oldest surviving bridge in Oregon, while rare and significant for its wrought iron Phoenix columns. This bridge has been moved once. Originally built in 1882 by Phoenixville Bridge Works at Corrine, Utah, it was dismantled and relocated in 1901 to its current location to serve the since abandoned Weyerhaeuser Logging Railway. The bridge was abandoned in 1987, then decked for pedestrian use and reopened in 2019. Notable also is the use of longitudinal bracing rods beneath the bottom chord bracing the deck beams. Lane County, Oregon, USA.
    AJH_221116_1718.jpg
  • Mount Hood 3,426m (11,239ft) viewed from Portland, Oregon.  The left skyline is the Northwest Ridge (named Cathedral Ridge); the right skyline is the Southeast Ridge.  The bulge in the Southeast Ridge is called the Steel Cliff.  Mount Hood is a stratovolcano in the Cascade Volcanic Arc of Northern Oregon. Sunrise provides backlighting glow to radiation fog (Valley Fog) filling the valleys on this cool autumn morning. Radiation fog results from radiation cooling of the ground and adjacent air under clear night skies and elevated relative humidity, most common in autumn. Normally, this fog dissipates within a few hours of sunrise as the sun warms the ground.
    AJH_221008_1243.jpg
  • The Astoria-Megler Bridge (1966) spans the mouth of the Columbia River between Astoria, Oregon and Point Ellice near Megler, Washington. The bridge type is a steel cantilever through truss, designed jointly by the state highway departments of Oregon and Washington. Construction was started in 1962 and completed in 1966. Total length: 4.1 mi / 6.5km.
    AJH_121224_0136.jpg
  • The Astoria-Megler Bridge (1966) spans the mouth of the Columbia River between Astoria, Oregon and Point Ellice near Megler, Washington. The bridge type is a steel cantilever through truss, designed jointly by the state highway departments of Oregon and Washington. Construction was started in 1962 and completed in 1966. Total length: 4.1 mi / 6.5km.
    AJH_110527_3410.jpg
  • 2016 Calendar Mount Tabor Park, Back Cover, Portland, Oregon
    Haliburton-2016-Calendar-Cover2-Mt-T...jpg
  • Richardson Bridge (1912) is a rare example of a double-intersection Warren through truss design. A Warren truss (or equilateral truss) utilizes equilateral triangles in its truss geometry for ultimate weight-saving efficiency. This bridge has been moved twice, but remaining within Oregon. Originally built in 1912 over the Crooked River in Crook County, it was relocated in 1956 to a crossing of the Siuslaw River in Lane County, and finally, in 1986, relocated to its current location in West Eugene and converted to a pedestrian-bicycle crossing of Amazon Creek for the Fern Ridge Trail. Partial dismantling for the 1956 and 1986 relocations saw the original rivet fasteners being replaced with modern-era high strength bolts. Notable is the absence of upper lateral bracing. Lane County, Oregon, USA.
    AJH_221115_1620_MA.jpg
  • Richardson Bridge (1912) is a rare example of a double-intersection Warren through truss design. A Warren truss (or equilateral truss) utilizes equilateral triangles in its truss geometry for ultimate weight-saving efficiency. This bridge has been moved twice, but remaining within Oregon. Originally built in 1912 over the Crooked River in Crook County, it was relocated in 1956 to a crossing of the Siuslaw River in Lane County, and finally, in 1986, relocated to its current location in West Eugene and converted to a pedestrian-bicycle crossing of Amazon Creek for the Fern Ridge Trail. Partial dismantling for the 1956 and 1986 relocations saw the original rivet fasteners being replaced with modern-era high strength bolts. Notable is the absence of upper lateral bracing. Lane County, Oregon, USA.
    AJH_221115_1598_MA.jpg
  • Springfield Main Street Bridge (1929), also called Willamette River Springfield Bridge, is a 3-span continuous Warren through truss bridge over the Willamette River, between Springfield and Eugene. Striking features of this bridge, constructed in 1929, are the graceful arch-shaped curvature of its polygonal top chord geometry, decorative concrete railings and entrance pylon ornamental lights. The bridge was designed by Conde B McCullough, acclaimed bridge engineer and designer of many arched bridges on the Oregon Coast Highway noted for their beauty and innovation. Other notable features: it is one of only three pre-1941 continuous truss designs, and it is the largest non-cantilever truss span in the state. Lane County, Oregon, USA.
    AJH_221115_1634.jpg
  • The new Sauvie Island Bridge was assembled in Portland and floated down the Willamette River and Multnomah Channel, then guided into position alongside the old 1950 bridge on December 28, 2007. The original Parker truss bridge (green paint, background) built in 1950 with a 200ft (61m) main span, was replaced with this tied-arch design with a 360ft (110m) span, after cracks were discovered in 2001. The new bridge was opened in 2008. Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT). Portland Oregon USA.
    AJH_071228_1762.jpg
  • The new Sauvie Island Bridge was assembled in Portland and floated down the Willamette River and Multnomah Channel, then guided into position alongside the old 1950 bridge on December 28, 2007. The original Parker truss bridge (green paint, background) built in 1950 with a 200ft (61m) main span, was replaced with this tied-arch design with a 360ft (110m) span, after cracks were discovered in 2001. The new bridge was opened in 2008. Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT). Portland Oregon USA.
    AJH_071228_1760.jpg
  • The new Sauvie Island Bridge was assembled in Portland and floated down the Willamette River and Multnomah Channel, then guided into position alongside the old 1950 bridge on December 28, 2007. The original Parker truss bridge (green paint, background) built in 1950 with a 200ft (61m) main span, was replaced with this tied-arch design with a 360ft (110m) span, after cracks were discovered in 2001. The new bridge was opened in 2008. Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT). Portland Oregon USA.
    AJH_071228_1756.jpg
  • The new Sauvie Island Bridge was assembled in Portland and floated down the Willamette River and Multnomah Channel, then guided into position alongside the old 1950 bridge on December 28, 2007. The original Parker truss bridge (green paint, background) built in 1950 with a 200ft (61m) main span, was replaced with this tied-arch design with a 360ft (110m) span, after cracks were discovered in 2001. The new bridge was opened in 2008. Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT). Portland Oregon USA.
    AJH_071228_1757.jpg
  • The new Sauvie Island Bridge being delivered down the Willamette River to the construction site. The new bridge was assembled in Portland and floated down the Willamette River and Multnomah Channel, then guided into position alongside the old 1950 bridge on December 28, 2007. The new bridge was opened in 2008. Contractor: Max J Kuney Construction Company; Owner: Oregon Department of Transportation (ODOT). Portland Oregon USA.
    AJH_071228_1753.jpg
  • The full moon rises over Mount Tabor Park, framed by the glass towers of the Oregon Convention Center, Portland, Oregon. This full moon appearing on the 31 July 2015 is called a Blue Moon, which refers to the second of two full moons appearing in the same calendar month. The last time this happened was in 2012, and another one isn't due until 2018.
    AJH-08a-August-2016-Mt-Tabor-Park-Ca...jpg
  • Drinking water Reservoir 5 violates the EPA LT2 Rule, Mount Tabor Park Portland, Oregon, USA.
    Drinking Water Reservoir 5 Mt Tabor ...jpg
  • Art detail in undulating rail wall, Tanner Springs Park, Portland, Oregon.  This 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.
    Tanner Springs Art 2.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
  • Euphorbia myrsinites / Myrtle Spurge.  Also know as Creeping Spurge or donkey tail.  Grown as a decorative plant in rock gardens, particularly valued in xeriscaping in dry areas.  Widely classified as a noxious weed, and in Oregon subject to quarantine.  The milky sap can cause significant skin and eye irritations.
    Leaf-Pattern-Geometric.jpg
  • Mount St Helens ash eruption, 2005, viewed from Portland, Oregon.  As if to signal the 25th anniversary of the devastating 1980 eruption, Mount St. Helens released this symbolic outpouring of ash and steam at 17:30 on Tuesday evening, March 8, 2005.  Volcanic ash rose to 36,000 feet and fell as far away as 125 miles east of the mountain. The eruption began with practically no warning, an hour after a magnitude 2.0 earthquake on the volcano's east side, and lasted 30 minutes.  Mount St. Helens, a 8,364-foot (2550m) volcano, is located about 40 miles (60km) northeast of Vancouver, Washington, Portland's sister city across the Columbia River which divides the states of Oregon and Washington.  The river in the photograph is the Willamette River, which divides Portland's east and west sides.  The Columbia River is not visible in this image; it runs perpendicular to the Willamette.  Mount St. Helens was named for British diplomat Alleyne Fitzherbert whose title was Baron St. Helens.  The mountain was named by Commander George Vancouver and the officers of H.M.S. Discovery while exploring the northern Pacific coast from 1792 to 1794.  Mount St. Helens erupted violently at 08:32 on Sunday, May 18, 1980.  Nikon F4S, 70-300/4-5.6D. Fuji RVP100F..
    Mount St Helens Eruption 2005.jpg
  • Summit Restroom (aka Harvey Scott Restroom) after restoration in 2017, Mount Tabor Park, Portland Oregon USA. The restoration project was funded by the Parks Replacement Bond. Left: Period lighting from 1924, comprising polygonal lantern-style shades, reminiscent of gaslamps. These replaced the original single white globes from 1911, thanks to the vision of Parks Superintendent Emanuel T. Mische. Mount Tabor Park, Portland, Oregon, USA.
    AJH_201024_7271.jpg
  • Whilamut Passage Bridge (2011 & 2013), official name for the Willamette River Interstate-5 Bridges, a pair of new deck arch concrete bridges spanning the Willamette River at Eugene in Lane County, Oregon. The name honors the area’s native population. Construction began in 2009; the west span was completed in 2011, and the east span was completed and opened in August 2013. They carry Interstate-5 traffic and replaced an earlier bridge completed in 1961. Contractors: Hamilton Construction Company / Slayden Construction. Lead Engineers: OBEC Consulting Engineers / TY Lin International. Owner: Oregon Department of Transportation (ODOT). The Knickerbocker Bicycle Bridge (1980) is visible in background.
    AJH_221117_1867.jpg
  • Whilamut Passage Bridge (2011 & 2013), official name for the Willamette River Interstate-5 Bridges, a pair of new deck arch concrete bridges spanning the Willamette River at Eugene in Lane County, Oregon. The name honors the area’s native population. Construction began in 2009; the west span was completed in 2011, and the east span was completed and opened in August 2013. They carry Interstate-5 traffic and replaced an earlier bridge completed in 1961. Contractors: Hamilton Construction Company / Slayden Construction. Lead Engineers: OBEC Consulting Engineers / TY Lin International. Owner: Oregon Department of Transportation (ODOT).
    AJH_221117_1875.jpg
  • Richardson Bridge (1912) is a rare example of a double-intersection Warren through truss design. A Warren truss (or equilateral truss) utilizes equilateral triangles in its truss geometry for ultimate weight-saving efficiency. This bridge has been moved twice, but remaining within Oregon. Originally built in 1912 over the Crooked River in Crook County, it was relocated in 1956 to a crossing of the Siuslaw River in Lane County, and finally, in 1986, relocated to its current location in West Eugene and converted to a pedestrian-bicycle crossing of Amazon Creek for the Fern Ridge Trail. Partial dismantling for the 1956 and 1986 relocations saw the original rivet fasteners being replaced with modern-era high strength bolts. Notable is the absence of upper lateral bracing. Lane County, Oregon, USA.
    AJH_221115_1627_MA.jpg
  • Richardson Bridge (1912) is a rare example of a double-intersection Warren through truss design. A Warren truss (or equilateral truss) utilizes equilateral triangles in its truss geometry for ultimate weight-saving efficiency. This bridge has been moved twice, but remaining within Oregon. Originally built in 1912 over the Crooked River in Crook County, it was relocated in 1956 to a crossing of the Siuslaw River in Lane County, and finally, in 1986, relocated to its current location in West Eugene and converted to a pedestrian-bicycle crossing of Amazon Creek for the Fern Ridge Trail. Partial dismantling for the 1956 and 1986 relocations saw the original rivet fasteners being replaced with modern-era high strength bolts. Notable is the absence of upper lateral bracing. Lane County, Oregon, USA.
    AJH_221115_1593_MA.jpg
  • Richardson Bridge (1912) is a rare example of a double-intersection Warren through truss design. A Warren truss (or equilateral truss) utilizes equilateral triangles in its truss geometry for ultimate weight-saving efficiency. This bridge has been moved twice, but remaining within Oregon. Originally built in 1912 over the Crooked River in Crook County, it was relocated in 1956 to a crossing of the Siuslaw River in Lane County, and finally, in 1986, relocated to its current location in West Eugene and converted to a pedestrian-bicycle crossing of Amazon Creek for the Fern Ridge Trail. Partial dismantling for the 1956 and 1986 relocations saw the original rivet fasteners being replaced with modern-era high strength bolts. Notable is the absence of upper lateral bracing. Lane County, Oregon, USA.
    AJH_221115_1574_MA.jpg
  • Peter DeFazio Bridge (1999) is a pedestrian and bicycle suspension bridge across the Willamette River in Eugene. Its eye-catching form displays interesting and unique architecture, with a modernist take on the classic suspension bridge. The DeFazio Bridge is celebrated for providing transportation and recreation opportunities that are in harmony with the natural environment, conveniently connecting several multi-use pathways and serving as primary bicycle-pedestrian artery between downtown Eugene and neighborhoods north of the river. Gradual grades on main span, approach ramps and stairs make this bridge the functional equivalent of the ultimate freeway spaghetti-interchange for pedestrians and bicyclists, yet its artful architecture compliments the beautiful urban park setting of Alton Baker Park. The DeFazio Bridge enhances accessibility to, and use of, the park – a marvel of modern bridge engineering. The bridge was designed by Jiri Strasky of Strasky Husty and Partners, and OBEC Consulting Engineers, built by Mowat Construction Company, and named after the Oregon Congressman. Lane County, Oregon, USA.
    AJH_221117_1845.jpg
  • Springfield Main Street Bridge (1929), also called Willamette River Springfield Bridge, is a 3-span continuous Warren through truss bridge over the Willamette River, between Springfield and Eugene. Striking features of this bridge, constructed in 1929, are the graceful arch-shaped curvature of its polygonal top chord geometry, decorative concrete railings and entrance pylon ornamental lights. The bridge was designed by Conde B McCullough, acclaimed bridge engineer and designer of many arched bridges on the Oregon Coast Highway noted for their beauty and innovation. Other notable features: it is one of only three pre-1941 continuous truss designs, and it is the largest non-cantilever truss span in the state. Lane County, Oregon, USA.
    AJH_221115_1631.jpg
  • Booth-Kelly Railroad Bridge (1882), now called Hayden Bridge, is a single span Whipple through truss spanning the McKenzie River in Springfield. A Whipple truss is a (stronger) variation of the Pratt truss, also called a “Double Intersection Pratt”, characterized by diagonal tension members crossing adjacent verticals, thereby spanning two panels instead of just one for the Pratt truss. It is considered the oldest surviving bridge in Oregon, while rare and significant for its wrought iron Phoenix columns. This bridge has been moved once. Originally built in 1882 by Phoenixville Bridge Works at Corrine, Utah, it was dismantled and relocated in 1901 to its current location to serve the since abandoned Weyerhaeuser Logging Railway. The bridge was abandoned in 1987, then decked for pedestrian use and reopened in 2019. Notable also is the use of longitudinal bracing rods beneath the bottom chord bracing the deck beams. Lane County, Oregon, USA.
    AJH_221116_1735.jpg
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