A2001-008.212 : Photograph of plans for Union Ave Viaduct over the Troutdale branch of the Oregon - Washington Railroad & Navigation Company AP/4599 06/30/1915
A2001-008.211 : Looking east from Station "B" showing completed concreting tower [Union Ave] AP/4598 04/22/1916
A2001-008.210 : Looking east from Station "B" showing woodwork on temporary viaduct completed [Union Ave] AP/4597 04/08/1916
A2001-008.137 : View from second hopper tower, looking down on south unit [Union Ave, Martin Luther King Jr Blvd] AP/4519 06/15/1916
A2001-008.136 : Rear view of north abutment [Union Ave] AP/4518 06/15/1916
A2001-008.135 : Rear view of south abutment [Union Ave] AP/4517 06/15/1916
A2001-008.134 : Looking north from concreting tower with view of sand fill approach from north and intersection of Union Ave and Columbia Blvd AP/4516 06/10/1916
A2001-008.133 : Looking north from concreting tower at forms in #3 Unit nearing completion [Union Ave] AP/4515 06/10/1916
A2001-008.132 : Looking south from concreting tower at completed forms in #1 Unit as reinforcing steel is installed [Union Ave] AP/4514 06/10/1916
A2001-008.131 : Looking west from Station "A" with view of nearly completely poured south end and newly begun north end [Union Ave] AP/4513 05/29/1916
A2001-008.130 : View from Station "A" showing concrete forms at south end, no. 1 unit, as columns and abutment are poured [Union Ave] AP/4512 05/29/1916
A2001-008.129 : View from concreting tower looking down on concrete forms and as columns are poured [Union Ave] AP/4511 05/29/1916
A2001-008.128 : Rear view of south abutment, forms in place as concrete is poured [Union Ave, Martin Luther King Jr Blvd] AP/4510 05/29/1916
A2001-008.127 : Looking west at construction site from Station "A" with view of spouting and chutes ready to pour concrete [Union Ave] AP/4509 05/05/1916
A2001-008.126 : Looking east from temporary trestle toward pedestal foundations and forms ready for concrete [Union Ave] AP/4508 05/05/1916