Skip to main content

PennDot opens bids on completing I-79/Parkway West Interchange

....thirty years later.

PennDot opened bidding on the construction of two "missing" ramps at the I-79/Parkway West (I-279/US 22/30) interchange (Exits 59A-B) in suburban Pittsburgh. I say "missing" because these ramps were not planned for in the original construction of the highway in the 1970s. The missing ramps are from I-79 South to US 22/30 West and US 22/30 East to I-79 North. Construction should start this fall and the ramps should open in 2009.

When the interchange was constructed in the early 1970s, I-79 actually was planned to actually take the ramp from I-79 onto the inbound Parkway West (I-279 North). I-279 would continue straight on what is now I-79 North today. But that changed when I-79 and 279 switched alignments in 1972. Anyways, the thinking at the time was that connections from I-79 South to the Airport and from the Airport to I-79 North could be done via PA 60 -- then a rural two lane road -- and connecting at what is now Exit 60. The hope was that PA 60 would be upgraded to at least a four lane divided highway or even a more limited access highway. Well, that along with many other highway plans for Pittsburgh never happened.

So thirty years later, a major freeway to freeway interchange is incomplete. Until 2009, that is. The interchange will become a three level stack interchange as the new ramp from US 22/30 East to I-79 North will fly over both highways. Also -- and you don't hear this at all in Western PA -- US 22/30 will be widened from four to six lanes from the I-79 interchange to the newly rebuilt Campbells Run Road intechange. A total of 1.6 miles. (For Pittsburgh, that's impressive.) I do not know as it's been years since i have traveled it, but I think that with the widening US 22/30 will be six lanes from I-79 to the PA 60 interchange (another incomplete interchange). But I may be mistaken about that.

Here's the story in Friday's Post-Gazette:

Commentary:

Although relatively small, this is an important improvement to Pittsburgh's highway system and the airport corridor. Since the early 1990's, the corridor has seen the completion of the Southern Expressway (A Freeway PA 60 connecting to the new airport terminal), there have been numerous upgrades to PA Business 60 (The old airport parkway), The West Busway, the Findlay Connector scheduled to open sometime in October 2006, and now completion of the I-79/Parkway West ramps. You gotta take what you can get.

Comments

Popular posts from this blog

Dillon Road

Dillon Road is a 34.2-mile highway located in northern Coachella Valley of Riverside County, California.  Dillon Road begins at Avenue 48 on the outskirts of Indio and ends to the west at California State Route 62 near San Gorgonio Pass.  Dillon Road was developed the 1930s as a construction road for the Colorado River Aqueduct.  Dillon Road serves as a northern bypass to much of the development of Coachella Valley.  Dillon Road is known for it's frequent dips and spectacular views of San Gorgonio Pass.   Part 1; the history of Dillon Road Dillon Road was constructed as a haul road for the Colorado River Aqueduct through Coachella Valley.  The Colorado River Aqueduct spans 242 miles from Parker Dam on the Colorado River west to Lake Mathews near Corona.  Construction of the Colorado River Aqueduct began during January 1933 near Thousand Palms and was made functional on January 7, 1939.  West of Berdoo Canyon Road the alignment of Dillon Road is largely concurrent with the Colorado

Tehachapi-Willow Springs Road

Tehachapi-Willow Springs Road is an approximately 21-mile highway located in southeast Kern County.  Tehachapi-Willow Springs Road begins at Tehachapi Boulevard (former US Route 466) in Tehachapi and crosses the Tehachapi Mountains via the 4,820-foot-high Oak Creek Pass.  Tehachapi-Willow Springs Road enters Antelope Valley of the wider Mojave Desert and passes by the historic stage station of Willow Springs to a southern terminus at Rosamond Boulevard.  Tehachapi-Willow Springs Road has historic ties to the Havilah-Los Angeles Road and Stockton-Los Angeles Road due to the once reliable presence of water at Willow Springs. Part 1; the history of Tehachapi-Willow Springs Road Oak Creek Pass and Willow Springs were known to the local tribes of the Tehachapi Mountains for generations.  The first documented European crossing of Oak Creek Pass was during 1776 as part of an expedition by Francisco Garces.  Oak Creek Pass is as used again by John C. Fremont during an 1844-1845 expedition to e

Former California State Route 152 east of Pacheco through the San Luis Reservoir

Dinosaur Point Road east of Pacheco Pass to the waters of the San Luis Reservoir is the original alignment of California State Route 152.  Since July 1965, California State Route 152 has been realigned east of Pacheco Pass via a modernized expressway.  The original alignment of California State Route 152 on occasion reemerges from the San Luis Reservoir at Dinosaur Point.  Pictured above as the blog cover is the original alignment of California State Route 152 at Dinosaur Point disappearing eastward into the waters of the San Luis Reservoir.  Below California State Route 152 can be seen passing through what is now the San Luis Reservoir east of Pacheco Pass on the 1935 Division of Highways Map of Merced County. Part 1; the history of California State Route 152 east of Pacheco Pass through the San Luis Reservoir site The present site of the San Luis Reservoir during the era of Alta California was part of Rancho San Luis Gonzaga.  Rancho San Luis Gonzaga was granted to Francisco Jose Riv