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The decommissioned and abandoned Oak Knoll Military Hospital.
Night, 4 minute exposure. Full moon, sodium vapor lights and natural LED flashlight.
Reprocessed and replaced, May 2024.
Bern Be 8/8 articulated tram on route 9 crossing the Kornhausbrücke over the river Aare. 16/09/1974 [TRM 147].
Photography from a flight over the North American prairies: the journey was from Saskatoon, Saskatchewan into the province of Alberta. A snow-covered landscape shows an interplay of light and shadows.
The rappelling group lends scale to the massive portal as they check their equipment at the base (bottom center).
I woke up early on a Sunday morning to attend a studio portrait session. I bathed, had my breakfast and prepped up my gear only to find out that it was re-scheduled. Well, crap happens. Good thing I had this for my project. It was a quick shot and I even forgot to check that my ISO was apparently set to 4k. Surprisingly it looked detailed and well-exposed in spite of the technical error.
An infographic I came across about how infrastructure may change in cities to reflect social use of technologies.
Photo © Tristan Savatier - All Rights Reserved - License this photo on www.loupiote.com/14612069608
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Single lane bridge with sign that says: "Weak Bridge - Heavy Vehicles Not Allowed - Cross One at a Time".
If you like this photo, follow me on instagram (tristan_sf) and don't hesitate to leave a comment or email me.
A double rainbow appears over the Hoonah Ranger Station. Hoonah Ranger District, Tongass National Forest. USDA Forest Service photo by Rachel Weston.
Work proceeds during Phase I of the Craigie Drawbridge Rehabilitation Project.
The Craigie Drawbridge carries McGrath O’Brien Highway (Route 28) between Land Blvd. in Cambridge and Leverett Circle in Boston. Visit the Craigie Drawbridge Rehabilitation project on the web for more information.
Bike and pedestrian access in each direction will be maintained during construction. As a result of the construction activities, the Charles River Channel will be closed to all marine traffic reopening no later than April 27, 2010.
Braving frigid December temperatures a worker tightens a nut on one of the flat jacks around a pintle on the underside of a precast concrete shell that will become part of the Olmsted dam spanning the Ohio River between Illinois and Kentucky. The flat jacks fitted to the underside of the shells are used to adjust the elevation of the shells once they are lowered into the river.
Wedged in securely, a welder checks his handiwork attaching a steel tower to a giant concrete shell that is a component of the Olmsted dam being built a few miles upstream of the confluence of the Mississippi and Ohio rivers.
Creating his own sun on a cold December afternoon, a welder attaches a steel template to the underside of a precast concrete shell that will be submerged in the Ohio River and filled with concrete to become a part of the Olmsted dam.
Engineering students work on improving a compost bin at the Arcata Sanctuary. Other student projects include: solar food dehydration • public free food kiosk • sink to toilet reuse • greywater treatment • rainwater catchment.
International Development Secretary Alok Sharma met with factory workers at a Unilever oral care plant on the outskirts of Addis Ababa, Ethiopia.
Credit: Anna Dubuis / DFID
Normally, details like these are almost invisible. They're almost everywhere, so we pay no attention. I've started to notice them. And what puzzles me the most is, who keeps up with all the keys?
Tiddenfoot Waterside Park, Leighton Buzzard, Bedfordshire, England
April 2025
Leica M3 camera
Zeiss Planar f2.0 50mm lens
Kodak Ultramax 400 film
May 2010 photo of the southern mile of the Alaskan Way Viaduct. See the same landscape 18 months later.
Learn more about the SR 99 Alaskan Way Viaduct Replacement Program.
Location: Staten Island, New York and Bayonne, New Jersey
Carry: 4 road lanes of NY 440/NJ440 with walkway
Type: Steel arch bridge
Opened: 15 November 1931
Average daily traffic volumes (2008): 20,000
Construction trailers, sign reading "Government of Ontario / Sewage System Improvements: Lillian Street Interceptor / Canada-Ontario project in co-operation with the City of Thunder Bay / Regional Economic Expansion."
Undated.
Accession 1991-03 #83
For more information about Thunder Bay's history, visit www.thunderbay.ca/archives
Taken on highway 14 in Vancouver, Washington.
Trucks are the mobile part of our national infrastructure. Virtually everything is moved by truck at some time in its life cycle. I was a truck driver for 10 years and hauled all kinds of stuff about 1 million miles. Paper products of all kinds, Electronics, Potatoes, Fish Food, TV Guide Magazines, Groceries, Bulk Wheat, etc.
Le tracel de Cap-Rouge, situé dans le quartier de Cap-Rouge à Québec (Québec), est un grand viaduc ferroviaire, du type pont à tréteaux (ou aussi pont à chevalets), achevé en 1908, encore en service.
Les ponts à tréteaux (ou ponts à chevalets) sont très présents sur tout le continent américain, au point de symboliser les exploits des constructeurs de chemins de fer du XIXe siècle. Ils sont très connus dans le monde entier, grâce au cinéma qui exploite toutes les possibilités de spectacles vertigineux et d’acrobaties qu’ils peuvent suggérer. Ils ont d’abord existé en bois, puis sur tréteaux de fer extrêmement grêles et économes de matière, comme le fut le pont de Kinzua dans sa première version (1882), et souvent ensuite renforcés ou convertis en acier au début du XXe siècle. C’est à cette ultime génération de ponts élaborés, faisant appel aux nouvelles techniques du rivetage à chaud, des poutres en treillis et du fonçage à l’air comprimé qu’appartient le tracel de Cap-Rouge.
Les documents d’époque montrent comment chaque rivet chauffé à blanc était lancé verticalement à l’aide d'une pince : un collègue attrapait au vol le rivet dans un entonnoir métallique avant de le renvoyer encore plus haut, à la pince, vers un autre ouvrier, et ainsi de suite, jusqu’à l’acheminer vers le lieu d'utilisation, où le rivet était posé à coups de masse : ce périlleux exercice demandait à coup sûr force et adresse.
La haute et longue silhouette du viaduc domine depuis un siècle le doux paysage de l'embouchure de la rivière du Cap-Rouge, avec ses pittoresques maisons aux couleurs vives. Les avis sont très partagés sur l'esthétique de l'ouvrage. Les plus philosophes parmi les riverains disent que, puisqu'il faut vivre avec lui, autant le trouver beau ! Les historiens et les visiteurs y voient un témoignage du savoir-faire des anciens ingénieurs et constructeurs, et l'un des plus magnifiques exemples de monument de l'archéologie industrielle.
Construction Dominion Bridge Company.
Dimensions:.
Longueur: 1 016 m.
Longueur des travées: 18 - 48 m.
Hauteur au dessus de l'eau / fond de vallée: 52 m.
Piles:.
Hauteur max. 44 m.
Nimbre de piles: 30.
4, 288 t d,acier de construction utilisés.
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© Ronald Santerre