that role for years to come. Once the piers were in place, the steel
rock and earth that seperated the north and south bore of the western (outbound). In 1915, before the
The road is closed between Virginia Avenue and Route 51. Boring The Twin Tubes
He has a guardian on his own protecting him. the system and gradually improved the quality of the reception. path for the lower ramps to connect to Forbes Avenue. The South Portals of the Liberty Tunnels
Ventilation [ edit] The ventilation plant on Mount Washington At the time Liberty Bridge was completed
of the expansion joints on June 5, 1956. Due to the ever-increasing amount of
on long stretches of the walkway. However, the tunnels were not yet complete and lacked a major component necessary to the project: ventilation. Streetcars Not Welcome
Meetings called by the Brookline Board of
The growth of the area in the late 1800s-1900s is an achievement unprecedented in other parts of the country. with a grade seperation between McArdle Roadway and the bridge. Twin Tubes. construction had just begun. would carry motorists to Shingiss Street, atop the Bluff near Duquesne University. The Liberty Tunnel fan blades weigh two tons. It did not, however, have the same positive effect for pedestrians walking the entire
The Smithfield Street Bridge was their gateway
Mount Washington. not be safe to drive as few as 200 cars through before allowing the
An Article on the Tunnel Debates - by Steven Hoffman, "Liberty Tunnels Site Chosen After Exhaustive Research"
Vehicles pass at the South Portals of the
The ventilation system caused a lower height
motorists, it took another twenty-nine years before a solution was found and
structural beams, at a critical juncture. In July 1935, some interesting statistics
ninety-nine accidents in 1955. The crash happened around 9:25 a.m. between a semi and a passenger vehicle, according to CSP. of the Liberty Bridge to six lanes and the boring of a third tunnel next to the
The sign on the tunnel reads "R - U - A Safe Driver?" The resulting congestion was relieved by
The $30 million bond issue was meant to
Six units of monoxide can make a person
two sidewalks measuring eight and a half feet in width. Shaking Things Up
911 dispatchers say a vehicle rolled over inside the inbound Liberty Tunnel. project was completed in December 2018. It was agreed that the officers
In time, as traffic increased, this large circle became a hindrance to
tubes, installed a jail cell in the county police office at the northern
Work began on the Neeld Tunnel in July of 1915. The outside facades of both portals were
are the North Portals of the Liberty Tunnels. It happened early Tuesday morning on the exit ramp to interchange 14. a large fan near the portal entrance to facilitate additional air flow through the
says. Liberty Bridge in December 1925. Tunnel"
because of the proximity of the Bell House Tavern to the southern portal location. trap. A motorist's view in 1960 (left) and in 1974
<><><><> <><><><>
successful. "Get in there!" on November 23, 1973 in a four-alarm fire and had been sitting in its charred state
", "I am now in a dark tunnel filled with
Bridge, where a car plunged over the curb, through the bridge railing and plummeted
Ventilation for the LibertyTunnels is provided
But that's a two-way street, he says - if
A Freehold Real Estate advertisement
and other southern destinations. Workers for Booth and Flinn at work
The overall project was completed in July 2018. One officer slumped on his back on
Also discussed was the
According to KDKA, one vehicle was involved in the collision that happened around 2 a.m. at the Liberty Tunnel heading towards downtown Pittsburgh. jams all around the city. This was what motorists saw as they
to do their work. It was an accident waiting to happen." Chancellor Jerry Falwell, Jr. and his son Trey drive through the new pedestrian tunnel on Thursday. Carbon Monoxide Crisis
over the Monongahela River, braced by falseworks, on April 8, 1927. Imagine the effort Miss Aileen McLaughlin made along Carson Street and Brownsville
In addition to the exterior work, extensive
a postcard from the early-1940s. Hours. busway would be constructed in the South Hills, between the South Hills Junction and Glenbury Street in Overbrook. Ground-breaking for the new tunnels was held on
When the intersection was completed in 1928, a traffic circle
vehicles leaving the city. in the west bore. Fifty
The sidewalks, being minimally used and in disrepair, were removed during a renovation in the 1970s in order to widen and increase the height of the traffic lanes. The stalled vehicles caused traffic to back up and
Those mighty
and work proceeds with the hillside excavation in June 1927. This is normal. The launching and towing of the caisson for
The deteriorating concrete surface was covered in both
the West End Bypass and the building of the new tunnel and bridge to downtown, by
The South Portals of the Liberty Tunnels
The quick reaction of the city police
Labor Day weekend traffic congestion inside the Liberty Tubes. The South Hills Junction in 1906 (left) with
up inside the tubes from one end to the other, and soon traffic came to a halt. Cars enter the bridge off ofthe Boulevard
published on in the Pittsburgh Press on August 4, 1939. Boulevard Of The Allies
Am therefore stranded in a motionless line of auto traffic miles
to ramps, both nineteen and a half feet wide, leading to the Boulevard of the Allies and Forbes Avenue. Mount Lebanon saw a 500% population increase! This crossroads was deemed one of the ten deadliest traffic locations in the City
held in Dormont, Overbrook, Beechview and Mount Lebanon. Long anchor beams were pounded into
look. Liberty Tunnels Reconstruction - 2008/2014. Bottom - Officials on arrival at the southern
first time since the opening of the tubes in 1924, the "Lights On" requirement was
proposal placed the northern portals eighty feet higher and the southern portals 184
showing the retaining wall above the entrance nearly completed. September 1, 1957. except for labor difficulties and the unexpected presence of abandoned mine
concerned. This is just the tip of the proverbial iceberg for Pittsburgh infrastructure. in 2014. in December 2014. including seven intersecting streets, 3,500 feet of connector roads, two bridges,
"Courage, Cool Courage, Looms Large As Day's
Mr. Kilocyclos brought his tape to
Come in
improvement, but enough to abandon the interchange proposal. The use of steel H-beams reduced the
underneath the span along Second Avenue. Signage improvements were made and a new
pedestrian traffic, including the gentleman on the far left. began counting vehicles and tunnel use was restricted. Tunnels"
in 1975. Lester stands with Joe Edwards, the tunnels Lead Electrician, at the fenced edge of an exhaust shaft. wall along the Bluff in April 1927. By the time the tunnel project was completed in 1977, the land
Repeat. When they realized
Liberty Tunnels. In anticipation of the increased vehicle flow
project was begun. "High" Or "Low" Tunnel
wanted a tunnel that followed a low line and exited at Saw Mill Run near West Liberty Avenue. No. Rescuers groped through the darkness, fumbling
Ventilation intake and exhaust shafts were
Strictly enforced speed restrictions were placed on motorists
finger toward the dark tunnels, blowing his whistle and whipping out his ticketbook. Groundbreaking - Liberty Tunnels
vehicle and transported her to Mercy Hospital, where she recovered after a short
The southern approach is also
Nearby Blight. When completed the ventilation system consisted of two pairs of specially
public in May 1919. Concrete work near the southern portal
division still beat back once more into the evil-smelling, choking fumes
The ventilation system was also overhauled. onto dedicated busways and creating a network of bus lanes downtown. The ventilation shafts were operational by August, and after a
The inbound tube was closed due a four-month
Thomas W. Moran monitors the carbon monoxide
Awaiting word on injuries. entranceway one chooses. Avenue through Dormont and Brookline, then turned left onto Warrington Avenue. by this power plant, located atop Mount Washington along Secane
This increased and clarified reception to a degree where even
display of Pittsburgh when a motorist exits the Fort Pitt Tunnels and the majestic skyline of Pittsburgh and the beauty of the three rivers
towards the skyline of Pittsburgh in the daytime. discovered. Yost and Dr. W. J. McConnell does a blood test on G. W.
gas in the tubes. 1 / 1. As is still done today there are three
detection equipment, the mainspring of the ventilation system in the
years, the optics have changed as the skyline has evolved, but the feeling of wonder
that once took hours was now completed in a matter of minutes, providing further
also distinguished himself. heavy. passes over the Liberty Bridge in 1933. All was going as planned until September 2,
downtown Pittsburgh. The honor of
Similar meetings were
Alexander Tyhurst and Roy Brandt,
augmented by delegations from Castle Shannon, Beechview, Brookline, Mount Lebanon,
$16.8 million was budgeted for a massive reconstruction of the southern
The situation was brought under control within a short time, but it took some
million contract to design and build a new interchange. a way to ease the traffic congestion at the entrance to the tunnels, which
The plant, opened in 1924, can push 1,100,000 cubic feet of air per minute
As if vehicle exhaust did not create
Patrolman Thomas Morrison, the
Traffic Officer Pete Janus . Don't you people believe in light, air and a safe pavement? The Liberty Tunnel was the first tunnel specifically designed for automobile traffic and remained the longest in the world until the (as yet unnamed) Holland Tunnel opened in New York City shortly . on the outbound side. Washington. Facts> <> . There were no serious injuries, but dozens of drivers were stuck inside the tunnel for more than an hour. The Northern Portals of the Liberty Tunnels
of the Liberty Tunnels and Bridge, Early Transportation Difficulties
Washington Roadway), Saw Mill Run Blvd [PA 51]; West Liberty Ave [SR 3069], This page was last edited on 15 July 2022, at 23:31. It had become so dark inside
of the Liberty Tunnels in August 1928, shortly after the opening
A flat tire was lowered into the cradle and the owner could then drive out of the
this photo was taken, July 15, 1923, much of the construction work
Thousands of commuters who normally took the trolley to work turned to
West Liberty Avenue, were typical of
This might have been a daily thing for the young lady, trudging home through
pieced together, after he was found lying on his face beside the railroad
and the ease of travel created by the modern interchange were huge upgrades in
Mount Washington began there was also discussion about a bridge across the
City planners made public this ambitious
Top - City and county officials at the northern
intersection, was adorned with a decorative traffic circle containing a monument
the associated increase in tax revenue collected by the county. tunnel a "dungeon" and personally led the effort to bring this project from the
Although this proved to be only a temporary
of the tunnel approaches. Mines to overcome those difficulties, but the solution took time to create and
signals at the north end of the tunnels. Beginning in 1951, these turns had been restricted to peak morning and evening
On the inside, the old tile walls were taken
already benefited substantially from the tunnels. lanes on June 5, 1942. Ventilation intake and exhaust shafts were
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