Skip to main content

Blue Water Bridge; east terminus of Interstate 94 and north terminus of Interstate 69

While in the Mid-West this year I crossed the Canadian Border into Ontario via the common terminus of Interstate 69 and Interstate 94 at the Blue Water Bridge over the St. Clair River.


The Blue Water Bridge is a dual structure facility which connects I-69/I-94 in Port Huron, Michigan to King's Highway 402 in Sarnia, Ontario.  The first Blue Water Bridge is a 6,178 foot long cantilever truss design which opened in 1938 and present serves westbound traffic.  The second Blue Water Bridge opened is a 6,109 bowstring arch structure which opened in 1997 serving eastbound traffic.  The Blue Water Bridge is operated by the Michigan Department of Transportation and Canadian based Federal Bridge Corporation.

When the Blue Water Bridge opened initially in 1938 it was served via US 25 by proxy from Pine Grove Avenue in Port Huron.  On the Canadian side the initial highway serving the Blue Water Bridge was King's Highway 40.  In 1953 a newly constructed limited access road known as KH 402 was built from the Blue Water Bridge to KH 40 and KH 7.  This 1956 Michigan State Highway Map shows the routes present around the Blue Water Bridge before the American Interstate system was complete

1956 Michigan State Highway Map 

By 1964 I-94 had been completed to Port Huron and was the first Interstate to use the structure.  In 1982 KH 402 was connected to KH 401 in Central Ontario which increased traffic volumes.  I-69 was completed to Port Huron and the Blue Water Bridge in 1984.  Since 1984 both I-94 and I-69 have had a common terminus point at the Blue Water Bridge.

My approach to the Blue Water Bridge was on I-94 east.  I-94 merges onto I-69 north in Port Huron at Exit 271.


The multiplex of I-69/I-94 is very well signed.  Traffic on I-69 north/I-94 east is quickly advised the last American access point is at M-25 via Exit 27t.  M-25 is part of what was US 25 which was truncated in 1974.






Signage indicates that I-69/I-94 ends before the Blue Water Bridge.  Toll rates from the American side for the Blue Water Bride is $3 dollars American and $4 dollars Canadian.




Traffic on the eastbound span of the Blue Water Bridge has three lanes.  Immediately east of the center span of the eastbound Blue Water Bridge signage welcoming drivers to Canada is present.  Beyond the customs checkpoint on the Canadian side of the Blue Water Bridge is the beginning of KH 402.











Comments

Popular posts from this blog

Old US Route 60/70 through Hell (Chuckwall Valley Road and Ragsdale Road)

Back in 2016 I explored some of the derelict roadways of the Sonoran Desert of Riverside County which were part of US Route 60/70; Chuckwalla Valley Road and Ragsdale Road.


US 60 and US 70 were not part of the original run of US Routes in California.  According to USends.com US 60 was extended into California by 1932.  US 60 doesn't appear on the California State Highway Map until the 1934 edition.

USends.com on US 60 endpoints

1934 State Highway Map

Conversely US 70 was extended into California by 1934, it first appears on the 1936 State Highway Map.

USends.com on US 70 endpoints

1936 State Highway Map

When US 60 and US 70 were extended into California they both utilized what was Legislative Route Number 64 from the Arizona State Line west to Coachella Valley.  LRN 64 was part of the 1919 Third State Highway Bond Act routes.  The original definition of LRN 64 routed between Mecca in Blythe and wasn't extended to the Arizona State Line until 1931 according to CAhighways.org.

CAh…

Interstate 375 in Detroit; a doomed freeway?

Recently while visiting the City of Detroit I drove the entirety of Interstate 375.


I-375 is a short 1.147 mile spur of I-75 in downtown Detroit which connects to the unsigned I-375 Business Spur on Jefferson Avenue.  I-375 is the southernmost segment of the Walter P. Chrysler Freeway which carried largely by I-75 in the City of Detroit.  Construction of I-375 began in 1959 and the freeway was open to traffic by late 1964 according to michiganhighways.org.

michiganhighways.org on I-375

The average traffic count on I-375 ranges between approximately 14,000 vehicles at Jefferson Avenue and approximately 54,000 vehicles at I-75.  The low traffic counts on I-375 has recently led to proposals to put the freeway on a "road diet."  In 2013 the Michigan Department of Transportation announced that it may at some point in the future remove I-375.  In 2014 MDOT announced six proposals for I-375 which were eventually reduced to only two boulevard alternatives by 2017.  In late 2018 a six…

California State Route 173; former California State Route 2 and the last stand of the dirt State Highway

This past weekend I drove a portion of California State Route 173 east of CA 138 to the closure gate near Mojave River Forks Reservoir.   CA 173 is notable for being a former portion of CA 2 and having the last four miles of dirt State Highway still on the books in California.


CA 173 is a 25 mile State Highway which begins at CA 138 near Cajon Pass and ascends to CA 18 in the San Bernardino Mountains.  Presently CA 173 is the only State Highway that has a segment that has a dirt surface between Post Miles SBD 7.5 to SBD 11.5 near Mojave River Forks Reservoir.  Unfortunately said four mile segment of CA 173 has been closed to traffic since 2011.

Reportedly the route of CA 173 was originally built as an alternate haul road to Crest Drive through Waterman Canyon for the Lake Arrowhead Reservoir Project.  Lake Arrowhead Reservoir began construction in 1904 and wasn't completed until 1922.

Lake Arrowhead History

Part of what became CA 173 appears on this 1908 USGS Map east of Cajon Pass…