Skip to main content

Spokane Street Bridge and West Seattle Bridge

Below in this photo the Spokane Street Bridge and West Seattle Bridge can be seen rising above Harbor Island and the Duwamish River.






The Spokane Street Bridge is a 1991 concrete swing bridge which replaced the earlier Old Spokane Street Bridge (AKA North Bridge) which was completed in 1924.  The Spokane Street Bridge serves as the lower level of the dual structure West Seattle Bridge, the longest span is 480 feet.  More information on the Old Spokane Street Bridge can be found on Bridgehunter.com

Bridge Hunter on the 1924 Old Spokane Street Bridge

The completed Old Spokane Street Bridge can be seen on the 1924 City map of Seattle.

1924 Map of Seattle

Interestingly the 1924 Old Spokane Street Bridge was proceeded by two other bridges.  The previous bridge to the 1924 span was the Third Spokane Street Drawbridge which was a truss span completed in 1917.  Previous to the 1917 the span there was an earlier truss which crossed to what was presumably Harbor Island when it was under construction in 1907 called the Second Spokane Street Bridge.

Bridgehunter on 1917 Third Spokane Street Bridge

Bridgehunter on the 1907 Second Spokane Street Bridge

Historylink.org actually has an article on both the Third Spokane Street Bridge the Second Spokane Street Bridge.

Historylink.org on the Third Spokane Street Bridge

Historylink on the Second Spokane Street Bridge

The West Seattle Bridge was under construction from 1981 to 1984 and was meant to relieve traffic congestion on the 1924 Spokane Street Bridge.  The West Seattle Bridge is Sectional Cantilever Bridge that is 2,607 feet long and has a maximum clearance of 140 feet.  The West Seattle Bridge essentially part of a freeway grade west from I-5 which crosses a junction with WA 99 before leveling off to a street grade near SW Genesee Street.

When I was driving through the area I met Spokane Street at Harbor Avenue and continued east to WA 99 on the Spokane Street Bridge.  The Spokane Street Bridge provided views of the substructure of the West Seattle Bridge.





Comments

Popular posts from this blog

Establishing the numbering conventions of California's chargeable Interstates

The Federal Highway Aid Act of 1956 brought the Interstate Highway System into existence which would largely be constructed by Federal Highway Administration fund matching.  The Interstate Highway System was deliberately numbered to run opposite the established conventions of the US Route System.  While the Interstate Highway numbering conventions are now well established there was a period during the late 1950s where they were still being finalized.  This blog examines the history of the establishing of the chargeable Interstate Highway route numbers in California.  The above blog cover depicts the Interstate Highway route numbers requested by the Division of Highways in the Los Angeles area during November 1957.  The establishment of the numbering conventions of California's chargeable Interstates The Interstate Highway System was not created in a vacuum by way of the passage of the 1956 Federal Highway Aid Act.  The beginning of the Interstate Highway System can be found in the

The western end of US Route 6 and Laws Depot on the Carson & Colorado Railway

Back in June of 2016 I visited the western terminus of US Route 6 at US Route 395 located in Bishop, California of Inyo County on my way to Laws Depot. US 6 is one of the longest US Routes at 3,205 miles between Bishop, CA east to Provincetown, MA.  Historically US 6 was the longest US Route ever when it ended in Long Beach at 3,652 miles.  US 6 is known as the Grand Army of the Republic Highway and is mostly known for traveling through some of the most rural corners of the Continental United States. The endpoint of US 6 expanded wildly westward during the early US Route era.  Below is a summary of endpoints for US 6 that are listed on USends.com: 1927-1931 -  Provincetown, MA west to Erie, PA 1932-1937 -  Provincetown, MA west to Greeley, CO 1937-1964 -  Provincetown, MA west to Long Beach, CA 1964-Present -  Provincetown, MA west to Bishop, CA US 6 was one of the routes heavily truncated during the 1964 California Highway Renumbering.  US 6 had a large mul

Legend of the Ridge Route; a history of crossing the mountains between the Los Angeles Basin and San Joaquin Valley from wagon trails to Interstates

Over the past two decades I've crossed the Interstate 5 corridor from Los Angeles north over the Sierra Pelona Mountains and Tehachapi Range to San Joaquin Valley what seems to be an immeasurable number of times.  While Interstate 5 from Castaic Junction to Grapevine via Tejon Pass today is known to most as "The Grapevine" it occupies a corridor which has been traversed by numerous historic highways.  The most notable of these highways is known as the "Ridge Route."  This article is dedicated to the Ridge Route and the various highways that preceded it.  This blog is part of the larger Gribblenation US Route 99 Page.  For more information pertaining to the other various segments of US Route 99 and it's three-digit child routes check out the link the below. Gribblenation US Route 99 Page Ridge Route corridor introdution The Ridge Route as originally envisioned was a segment of highway which was completed in 1915 between the northern Los Angeles city limit