|
|
|
|
A1999-004.1155 : Burnside Bridge construction : pouring reinforced concrete deck. |
12/31/1925 |
|
|
|
|
A1999-004.1154 : Aerial of Burnside Bridge |
05/10/1926 |
|
|
|
|
A1999-004.1162 : Burnside Bridge : operating machinery - motors, solenoid brakes, differential gear, emergency brakes, limit switches |
05/31/1926 |
|
|
|
|
A1999-004.1161 : Burnside Bridge : main trunnion, counterweight arm and counterweight 1315 tons |
05/31/1926 |
|
|
|
|
A1999-004.1160 : Burnside Bridge : one of two control tables in towers for operation bascule lift spans |
05/31/1926 |
|
|
|
|
A1999-004.1159 : Burnside Bridge completed : looking north toward railroad bridge (Steel Bridge) |
05/31/1926 |
|
|
|
|
A1999-004.1158 : Burnside Bridge : main rack and pinion and live - load shoe |
05/31/1926 |
|
|
|
|
A1999-004.1157 : Burnside Bridge : east approach showiing steel griders encased in concrete |
05/31/1926 |
|
|
|
|
A1999-004.1156 : Burnside Bridge completed : looking down stream and toward industrial and residential section on east side of the Willamette |
05/31/1926 |
|
|
|
|
A1999-004.1167 : Ross Island Bridge construction : south approach spans under construction |
06/30/1926 |
|
|
|
|
A1999-004.1168 : Ross Island Bridge construction : Ross Island Intra - City Highway Bridge, August, 1926 |
08/31/1926 |
|
|
|
|
A1999-004.1169 : Ross Island Bridge construction : setting final section of chord in 435 feet cantilever span. |
10/31/1926 |
|
|
|
|
A1999-004.1165 : Ross Island Bridge : Ross Island Highway Bridge over Willamettee River, on day of dedication opening |
12/21/1926 |
|
|
|
|
A1999-004.1164 : Ross Island Bridge construction : making closure of 535 feet Cantilever span, 123 feet above water surface |
12/31/1926 |
|
|
|
|
A1999-004.1163 : Ross Island Bridge construction : swinging final section of chord into position for closure of 535 - feet Cantilever Span |
12/31/1926 |
