Rusty train bridge just west of the locks. These old bridges are cool, with the large counterweight lift mechanism.
Tag: Bridge
Dredging out the East Cofferdam
They are still digging out the river bottom on the East cofferdam on the 14th St. Bridge Project in South Park. I wonder if I am the only one photographing the project, from beginning to end?
South Park Bridge- A Look Back
Two similar views of the South Park Bridge that is now under reconstruction. The mid-span or the part that raises for boat traffic has been dismantled for some time. Currently there are two cofferdams in place where new bridge columns will be built.
Rivets
Rivets holding the tower pieces together on the Golden Gate Bridge.
14th St. Bridge


Recent photos of the construction of the new 14th St. ( Duwamish River ) Bridge. Top Photo: view of East Span with new cofferdam behind the barge. Middle Photo: view of the new cofferdam on West side of span. Bottom Photo: view of original East Span. The interesting thing in this view is the eight vertical I-beams that had to be installed on the old section in order to hold the weight of the crane parked on top. The bridge could not hold the load of a crane that was needed to build the new bridge. Driving the 8 beams into the river bottom to add strength was a cool, engineering idea.
Cofferdams Finished
The two cofferdams for the new bridge in South Park are finished. I am not sure if the water has been pumped out or not. Apparently the project is going to continue on during the evenings for a while.
Cofferdam Wall
A section of the cofferdam built for the construction of the new South Park Bridge.
Crane
The large crane at the site of the South Park Bridge. There are three cranes at the site at this time. This large one sits on a very large barge. Even with a wide angle lens I couldn’t get all of the barge in one shot. The yellow crane up on the old bridge in the background will give you a sense of scale.
Channel
Duwamish River at 14th St. Bridge. These pilings, I believe, were put in place to guide the large ships through the narrow passage of the drawbridge. Right now construction of the new bridge is progressing. They are building the cofferdams for the new bridge using the large crane seen in a previous post.
Archeological Dig at 14th St. Bridge
Before the actual construction starts on the new bridge an archeological survey of the site must be done. A few dig spots, like this one, are being looked at. You can see the different strata of the soil. Once the survey is done the SDOT website will post data, images and a video of the survey. More information than I can comprehend, although there are some interesting things being found. There were no permanent villages or settlements in this location of the current river and bridge, just seasonal fishing camps. The black tank holds water they use for sluicing the material as needed.
Downriver
Down river, the Willamette does seem large and powerful. You can see two bridges in the background. Love all of the bridges connecting different parts of Portlandia.





























