Showing posts with label Iway. Show all posts
Showing posts with label Iway. Show all posts

Monday, November 28, 2011

Iway - Proposed changes to city streets

RIDOT and the City of Providence have been working together to make a plan for the areas downtown once the old I-195 corridor is demolished. With the input from the public the DOT has come up with a nice layout for the post demolish areas.

Iway New Street Pattern Overview
Demolition of the old highway is wrapping up now and reconstruction of city streets a few were bisected by the construction of the original highway and will take place in 2012.

The following are pictures of the design maps presented at the public meetings and text from their website..



Wickenden Street/East Side Plans

Most recently, RIDOT has selected Alternative 2 among three proposed alternatives for reconfiguration of Wickenden and South Main Streets near the old highway. Revisions to the original proposal include:

•Reduce the number of lanes on the South Main Street (I-195 west-Exit 2 Off-ramp) approach from 4 to 3 lanes.

•Eliminate the channelized right turn lanes from Point Street (east) to South Water Street (south) near Corliss Landing.

•Reduce the width of the median on Wickenden Street to 12± feet. Providing a median on Wickenden Street is the best way to enhance pedestrian safety. The median will provide refuge for pedestrians who do not, or cannot cross the entire width of the street in one phase of the signal sequence. The median will be landscaped and will provide an aesthetically pleasing separation to opposing traffic.

•Eliminate the eastbound left turn lane on Wickenden Street to South Main Street (north).

•Open Benefit Street south of Wickenden Street to one-way southbound through traffic.

•Provide bump-outs at the intersections to enhance pedestrian safety by reducing the crossing distances.

•Route the shared-use path along the southerly sidewalk of Wickenden Street rather than in the median.

The following are RIDOT's thoughts regarding suggestions raised during the public process that are not being adopted:

Intersection at South Main Street and Pike Street:

The volume of traffic using the off-ramp to South Main Street (Exit 2) is significant. The traffic flow will be continuous in the morning rush hour.

Attempting to provide a safe pedestrian or vehicle crossing of South Main Street at this location would require a traffic signal.

There is not enough distance between the end of the interstate off-ramp and the intersection to allow drivers coming off the ramp to perceive a signal and react to it.

There is concern that a signal at this location would cause traffic to stop on the off-ramp and create congestion on the interstate. This will conflict with many of the improvements being realized with the Iway project. Moreover, having vehicles stopped beyond the off-ramp and on the interstate would expose them to rear-end crashes.

Left turn from westbound Wickenden Street to South Water Street (south):

Significant congestion would likely be caused on South Water Street, Point Street and Wickenden Street through Fox Point if this left turn is allowed. The current intersection configuration has three lanes in the westbound approach and a by-pass right turn lane in the eastbound direction. These will be eliminated with the redesigned alternative (Alternative 2).

The proposed alternate route for traffic destined to South Water Street (via South Main Street and Dollar Street) is only two-tenths of a mile, less than a one minute drive. This time and distance is insignificant considering the average trip for vehicles passing through this intersection.

Left turn from India Street (north) to Point Street westbound and pedestrian/bicycle crossing at India Street:

There is not adequate sight distance because of the vertical crest and horizontal curve caused by the Point St. Bridge to make a safe left turn out of India Street. Most vehicles exiting the India Point Park and waterfront area can conveniently use the new South Main St., which is signalized at Wickenden St.

Crossing Point Street would not be safe for pedestrians because the crest on the Point Street Bridge does not give drivers or pedestrians adequate sight distance.

West Side Plan Changes

Revisions to plans for areas west of the Providence River along the old highway corridor include:

•Elimination of proposed Eddy Street between Ship Street and Clifford Street.

•Accommodations for bicycles on all the new sections of streets.

•A mid-block pedestrian crossing across Dyer Street between Ship and Dorrance Streets to provide access between the new park and the Downtown and Jewelry Districts.

•Eddy Street will be three lanes wide with bike lanes in each direction. Dyer Street will be three lanes with bike and parking lanes in each direction.



Thursday, October 27, 2011

I-195 Demolition in Providence Slide Show


Not much of a post but saw this slide show online and thought it was pretty cool showing the demolition of most of the I-195/I-95 interchange in Providence while they were putting in the Iway.

Demolition Slide show

Tuesday, October 25, 2011

RIDOT Finally Opens Iway Ramp

 Aerial view of final Iway ramp
So a while ago I think I wrote about inspecting a ramp and how we found pier columns with extensive cracking before they had been opened for traffic.

After non-destructive testing was done they found out that one column had significantly lower compressive strength than the design called for.

The ramp was not opened and repairs were ordered. The superstructure was braced with shoring and the top of the concrete pier column was taken done to the reinforcement and the concrete was placed again.

The other week when I was in the area I noticed that the ramp was opened October 3rd to all traffic and was the last ramp to open for this project.

Wednesday, September 8, 2010

I-Way Fracture Critical Inspection

This I-Way bridge was unlike most fracture critical bridges that I have inspected in the past. Most consist of either some type of truss or a through girder system but this bridge's superstructure has two steel box girders and a concrete deck. At one end of the bridge there is a curved section which required a deep concrete counter weight. Unfortunately for me I was given the task of crawling into the narrow corrugated pipe to check the bearing connection at the end.

Thursday, August 27, 2009

Providence I-Way Inspections

Today I inspected the interior of a steel box girder bridge in Providence RI, I walked each span hunched over in short trapezoidal shaped box girder trying to avoid the construction debris that still remained behind.

Wednesday, August 26, 2009

Providence's I-Way Inventory Bridge Inspections


Today I assisted in the inspection of the extior of a steel box girder bridge in Providence RI. The large three box girders carry a bare concrete deck ramp from I-95 Northbound to I-195 Eastbound. The weather was great for the inspection with clear skys.