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I-91 Brattleboro Bridge Replacement Project Update: Week of December 5th


I-91

Northbound I-91 traffic has been relocated onto the southbound bridge. Traffic will remain reduced to one lane in each direction on I-91 until completion of the new bridge. The new bridge will be 104’ wide and is designed to carry all four lanes of traffic –two northbound and two southbound.

Route 30

The speed limit on Route 30 near the work zone has been reduced to 40 mph. Project-related truck activity on Route 30 will continue. Route 30 may be reduced to a single lane intermittently, with flaggers regulating traffic within the work zone.

Upper Dummerston Road

Upper Dummerston may be reduced to a single lane intermittently, with flaggers regulating traffic within the work zone.

West River Trail

The West River Trail is open. There are intersections between construction access and the trail path, and users should exercise extreme caution at these intersections. As an additional safety precaution, users of the West River Trail are reminded to keep pets on a leash in this area.

West River

No impacts are anticipated.

Text Alert System

A text alert system for the Brattleboro Bridge Replacement Project makes it possible to receive text notifications of:

• Interstate ramp closings,

• Closings of I-91,

• Closings of VT Route 30 (but not single lane closings of RT 30), and

• Any other situations regarding time sensitive project-related traffic issues.

People can sign up for this service by texting 313131 with the keyword “I91Brat”, or by using the signup widget on the project website www.i91brattleborobridge.com.

Project Progress

Segmental construction at Pier 2 is complete. Work has now begun on removing the form traveler and completing the 3 closure segments. This will continue over the winter.
The new roadway alignment and paving will continue through November.
Bridge completion is anticipated in the Spring, 2017.
Project completion is anticipated in the Fall, 2017.

Trail Talks

The next trail talk has not yet been scheduled.

Safety

Please focus on safety when driving through the construction work zone and remember that it is now against the law for drivers to use a hand-held cell phone.

For More Information

If you would like additional information, or would like to add others to this distribution list, please contactBonnie Clark, Public Relations Officer, atbclark@pcl.com.

Bonnie Clark
Field Office Manager
Public Relations Officer
PCL Civil Constructors, Inc.
41 Spring Tree Road | Brattleboro, Vermont 05301
p 802-251-0709 | f 802-251-0695

»

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A State of Collapse - The Threat of Being Functionally Obsolete

This new replacement bridge at 104 feet is one-third the length of the Anna Marsh Bridge that crosses over into NH going towards Hinsdale. The support structure for the I-91 bridge, designed to carry 4 lanes of traffic, is modern. However, the Anna Marsh Bridge, built in the 1920's, carries two-lanes of traffic that extends a full 302 feet, totally unsupported underneath, across the Connecticut River.

Read full article: http://ibrattleboro.com/sections/oped/state-collapse-threat-being-functi...

 
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104 feet WIDE

The bridge is 515 feet long, 104 feet wide.

 
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Sitting corrected

Thank you!

However, the length and wide is certainly better supported overall than the 300+ foot Anna Hunt Marsh Bridge, even though it was "rehabilitated" in 1988.

 
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balancing act

Very much enjoying watching the final balancing act. It seems like extra weights are added to keep things weighted properly as the bridge making equipment is moved and removed.

Went under Upper Dummerston the other day - that old bridgework looks sooooo old.

 
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Movable bridge

It's amazing how much the bridge can flex and move...on purpose! They left the form traveler in place on the north end to act as a counterweight to the one currently in the middle. For a brief while this week you could see the 2 halves were tilted away from each other, so the 2 decks sloped slightly uphill at the center. They're forcing the 2 halves away from each other using big hydraulic jacks. When the center section is poured, they'll let the halves push back against each other, the pressure of which causes the concrete to cure extra strong.

 
 #

The details astound

It's a bit of hindsight right now, but a high school science or math class could have had a lot of fun applying math and science principles to this real-world, local project.

Next time we build a major bridge, let's make sure students are learning why it is built the way it is built.

 

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