Spokane, Portland, and Seattle Railway Steam Locomotive Number 453 formerly Great Northern Number 1577 (Class J-2), at Vancouver, Washington, 1938.

Spokane, Portland, and Seattle Railway Steam Locomotive Number 458 formerly Great Northern Number 1638 (Class J-2), at Vancouver, Washington, 1938.

Spokane, Portland, and Seattle Railway Steam Locomotive Number 506 formerly Great Northern Number 3123 (Class O-1), at Vancouver, Washington, 1938.

Spokane, Portland, and Seattle Railway Steam Locomotive Number 507 at Vancouver, Washington, 1938.

Spokane, Portland, and Seattle Railway Steam Locomotive Number 508 (formerly Great Northern Class O-1), at Vancouver, Washington, 1947.

Spokane, Portland, and Seattle Railway Steam Locomotive Number 512 formerly Great Northern, at Vancouver, Washington, 1948.

Spokane, Portland, and Seattle Railway Steam Locomotive Number 550 (formerly Great Northern Class O-4), at Vancouver, Washington, 1949.

Spokane, Portland, and Seattle Railway Steam Locomotive Number 624 formerly Great Northern Number 1047 (Class E-14), at Vancouver, Washington, 1937.

Spokane, Portland, and Seattle Railway Steam Locomotive Number 625 with passenger train, formerly Great Northern Class E-14, at Vancouver, Washington, 1947.

Spokane, Portland, and Seattle Railway Steam Locomotive Number 625 with passenger train at station, formerly Great Northern Class E-14, at Vancouver, Washington, 1947.

An aerial view of the City of Vancouver, Washington, undated. This is a postcard image.

Color postcard view of steam locomotive powered passenger train passing over the SP&S Columbia River Bridge, postmarked August 1912. This is a postcard image.

General view looking south of the SP&S Columbia River draw bridge at Vancouver, Washington, April 24, 1908. This is a postcard image.

Color postcard view looking through the SP&S Columbia River Bridge to the south, postmarked August 28, 1909. This is a postcard image.

Raising the first bent of the traveler used in erecting the SP&S Columbia River Bridge, August 30, 1907. This is a postcard image.

A view of the "Mule" on pier Number 1 of the SP&S Columbia River Bridge at Vancouver, Washington, circa 1908. This is a postcard image.

Construction workers on the SP&S Columbia River Bridge, circa. 1908. This is a postcard image.

SP&S Columbia River Bridge; 44 ton lift, Vancouver bridge, circa 1908. This is a postcard image.

Eight construction workers who worked with timbers on the construction of the SP&S Columbia River Bridge, circa 1908. This is a postcard image.

A view of open draw span on the SP&S Columbia River Bridge at Vancouver, Washington, December 1, 1907. This is a postcard image.

A view of the concrete mixing plant used during construction of the SP&S Columbia River Bridge, February 22, 1908. This is a postcard image.

A view of the concrete mixing plant used during construction of the SP&S Columbia River Bridge, February 22, 1908. This is a postcard image.

Color postcard view of the SP&S Columbia River Bridge from the Vancouver end with southbound passenger train on the bridge, January 15, 1914. This is a postcard image.

Color postcard view of the SP&S Columbia River Bridge, postmarked January 2, 1913. This is a postcard image.

Construction workers on the SP&S Columbia River Bridge, January 31, 1908. This is a postcard image.

First locomotive on the SP&S Columbia River Bridge, January 9, 1908.

A view of the north end of the SP&S Columbia River Bridge, postmarked July 13, 1912. This is a postcard image.

Color postcard panorama view of the SP&S Columbia River Bridge, May 18, 1909. This is a folding postcard image.

Eighty foot deck plate girders to be used on the SP&S Columbia River Bridge, May 3, 1907. This is a postcard image.

Color postcard view of the SP&S Columbia River Bridge looking south with a northbound passenger train, postmarked November 1, 1912. This is a postcard image.