Iway
The Iway is the $610 million project by the Rhode Island Department of Transportation (RIDOT) to relocate the Interstate 195 and Interstate 95 intersection in Providence, Rhode Island.[1] As of Spring 2013, all reconstruction and demolition is complete, and the last remaining project is to rebuild city streets around the deconstructed corridor.[1]
The project freed up space in downtown Providence and the Jewelry District. It involved renovating India Point Park and constructing a 50-foot (15 m)-wide pedestrian bridge;[2] building a signature arch bridge over the Providence River; and improved highway flow, access, and safety, as the existing intersection was not built for modern traffic standards. The previous lane alignment was dangerous and created congestion, as lane shifts were often required to avoid a left sided exit-only lane; moreover, the concrete supports deteriorated to the point that steel shoring are needed to reinforce the intersection's many bridges. [3]
History
Back in the 1980s, RIDOT reviewed many plans to deal with the aging section of I-195 in Providence, which was built in the 1950s. Along with having to complete numerous repairs on one of the busiest stretches of highway in Rhode Island, traffic volumes had increased tremendously over the years. The highway designed for 75,000 vehicles a day now carries more than 160,000 cars daily.
The old design had other problems. Tight curves, left-hand exits and closely spaced exits have contributed to excessive congestion on the highway, which spills over onto adjacent highways, causing delays for motorists on I-95, the Route 6/10 connector, and on city streets.
As RIDOT worked on the Iway’s Environmental Impact Statement (EIS) in the early 1990s, the highway’s problems were put to paper. The EIS noted deteriorated bridges, substandard roadway alignments, sharp curves and substandard shoulder widths. During the initial stages of the project, DOT worked on a joint project between the School of Architecture at ETH Zürich, and the Rhode Island School of Design (RISD), Providence, Rhode Island to include studies of the Iway in their "Project Providence," an exploration of the city through computer visualization.
RIDOT looked at three alternatives before choosing the one that was built. An alignment just to the north of the current highway was not selected as it would have corrected only the congestion and tight curves on I-195 itself. It would not deal with the weaving motorists face due to closely spaced exits at the highway interchange, it would not have addressed better access to the Eddy Street hospitals campus, and it would have created only limited opportunities for redevelopment as outlined in the Old Harbor Plan. The plan outlines how the land occupied by the existing highway will be reused.
Another idea that was considered was a no-build alternative, one in which the existing alignment would be reconstructed. This would have addressed problems with deteriorated structures, but done nothing about the congestion, weaving conflicts and existing safety hazards. Additionally, traffic would have been severely impacted during construction.
Consideration of these choices led RIDOT to choose the alignment south of the Fox Point Hurricane Barrier. Safety problems and congestion issues could be addressed, and the removal of the old highway would allow for significant redevelopment of the Providence waterfront and fuller implementation of the Old Harbor Plan. Also, the redevelopment would complement other projects including the construction of Memorial Boulevard, Waterplace Park and the Riverwalk system, and the Capital Center projects.
Roadway openings and closings
On November 4, 2007, the new Iway bridge opened to eastbound traffic from I-95 north to I-195 east. Old exit 20 from I-95 north to I-195 east remained open for access to I-195 exits 1 and 2. I-195 exit 3 eastbound (Gano St.) became accessible from new Iway bridge only. Five days later, a new onramp from Wickenden and Point Streets to I-195 east opened, and the old onramp closed. On May 19, 2008, a temporary onramp to I-195 east from Hoppin street opened, and on May 22, 2008, the eastbound Exit 3 offramp to Gano street closed, while a new eastbound Exit 2 opened from Iway bridge to India Point/Gano Street/Wickenden Street. On May 27, 2008, the Friendship Street onramp to I-195 east closed, followed by the closure of the I-95 north exit 20 to old I-195 east, two days later.
On June 13, 2008, the Pine Street overpass over I-95 closed. On October 15, 2008, the New India Point Park pedestrian bridge over I-195 opened, and on October 29, 2008, a temporary ramp opened from Blackstone Street to I-95 south. On November 7, 2008, the onramp from Broad Street to I-95 south closed. By December 6, 2008, the new exit 20 from I-95 south to the new I-195 east opened, and the new onramp from Plain Street to I-195 east also opened. Then, the old I-195 eastbound roadway was closed, including all on and off ramps from old I-195 eastbound.
On June 18, 2009, the new Iway bridge opened to westbound I-195 traffic to I-95 south, while the old I-195 west remained open to funnel traffic to I-95 north. All ramps to/from old I-195 west also remained open. On October 20, 2009, the new Exit 20 from I-95 NB to Point Street opened, and two days later, the new ramps from the Iway bridge to I-95 north and Point Street (Exit 1A) opened. All I-195 west traffic was now using the new highway and the old I-195, and all remaining on-ramps to it, were closed completely. I-195 WB Exit 2 (South Main St) remained open, however.
On October 13, 2010, the new Clifford Street bridge over I-95 opened, as well as the new entrance ramp to I-95 NB from Point Street. Two weeks later, on October 19, the new exit 19 ramp from I-95 SB to Borden and Eddy Streets opened, while the old exit 19 ramp remained open temporarily. Demolition of the old right of way started on November 15, 2010, and was completed in September 2011. On October 3, 2011, the last major ramp of the project, the new ramp from I-195 West to the R.I. Hospital area, opened.
Traffic response
The first few days of the Iway being opened caused lengthy delays for motorists on I-95 South to I-195 East. This was alleviated by several steps RIDOT took. These included combining two on-ramps into one at their merge point with I-195 East, making minor lane adjustments, and a public education campaign to encourage people to get onto I-95 North and then the Iway as opposed to using exits on the old stretch of I-195 where backups were occurring. These changes shifted traffic to the Iway which had excess capacity. In three days traffic was reduced to original evening congestion levels. By the end of the week, congestion had lessened from original levels.[4]
The opening of the Iway ramp has eased congestion on I-95 North during the afternoon commute. Originally traffic backed up each evening for approximately 2.2 miles (3.5 km). Long traffic backups on this part of I-95 North are unusual except in times of adverse weather or accidents.
Iway Bridge Float
A significant milestone was the floating of the new Providence River Bridge from the Quonset Business Park to its final resting place in Providence. In August 2006, RIDOT orchestrated a series of events to install the 400-foot (120 m) center span for the bridge. The bridge float captured the attention of Rhode Islanders from all over the state who watched on television and read in newspapers about the entire process of raising the bridge, placing it on Self-Propelled Modular Transporters (SPMTs), rolling it onto two large barges, and floating it up the Bay. The day of the float, thousands of people lined the shores of the Bay to witness history and watch the bridge sail by. The bridge float also attracted the attention of the History Channel, which produced a documentary on the Iway for its “Mega Movers” series.
The following is a timeline of the new Providence River Bridge construction and float:
October 2005: Work began on the center span at Pier 2 in the Davisville section of the Quonset Business Park (QBP) in North Kingstown, R.I.
March 2006: Cardi Corporation (lead contractor) completed construction of center span.
August 11, 2006: Kickoff event for dignitaries and media held at Davisville Pier 2.
August 21, 2006: Bridge lifted to a height of 30 feet (9.1 m), followed by placement of SPMTs.
August 25, 2006: Bridge rolled to edge of Pier 2.
August 26, 2006: Bridge loaded onto barges and secured for sea voyage.
August 27, 2006: Bridge leaves QBP for Providence. Barges make nearly twice the expected speed and arrive two hours ahead of schedule.
August 28, 2006: Bridge moved into position at new piers and lowered into place.
Opening-day ceremonies
The opening of the Iway was preceded by a public walk on the Iway on October 20, 2007. An estimated 10,000 people attended the event from 9 a.m. to noon. Visitors started lining up one hour before the event start time and RIDOT extended the event by about one hour. Visitors traveled to the site on RIPTA buses from one of two satellite parking locations in Providence, from the Johnson & Wales University Harborside Campus and from the State Offices campus. Once there they received a commemorative program[5] and walked the length of the new Providence River Bridge was well as approach ramps on both the east and west side of the bridge.
Awards
On June 9, 2008, RIDOT announced [6] that the Iway was nominated for a national award for the Iway bridge float. The competition, America's Transportation Award, is sponsored by the American Association of State Highway Transportation Officials (AASHTO), the U.S. Chamber of Commerce and AAA. The contest recognizes transportation projects completed on time, on budget or those that demonstrate innovative management. The latter category is the one RIDOT ran for. On August 13, AASHTO announced that the Iway bridge float was one of 10 finalists for the national award. The Iway bridge received an Innovative Management award in the large project category.[7] There also was a People's Choice Award that can be voted on at the America's Transportation Award website.
On June 11, 2008, RIDOT was informed[8] that it was the recipient of a "Bell Ringer" award from the Publicity Club of New England]. The award was for the Iway logo with its three arches and the tag line “Yours. Mine. Ours.” The award is the highest achievement given by the annual competition, which is the region’s premier public relations and communications event.
Light Pollution
One of the key features of the Iway, the new Providence River Bridge, is illuminated by architectural lighting, making it visible from many points in the city and on the Providence River. There has been criticism[9] that this lighting has caused a considerable amount of light pollution. This has made it difficult for astronomers in the Providence area to view the night sky. Complaints have been made to the state and in response, lights are turned off at 11 p.m. to save energy and reduce light pollution.
References
- 1 2 "The Iway: Relocating I-195 in Providence". State of Rhode Island Department of Transportation. ri.gov. Retrieved 12 October 2013.
- ↑ RIDOT
- ↑ RIDOT 195 Intro
- ↑ RIDOT
- ↑ Copies of the program can be obtained by contacting RIDOT Customer Service at 401-222-2450 or viewed on-line.
- ↑
- ↑ Award Winner: Large Project - Innovative Management AASHTO
- ↑
- ↑
External links
- Iway videocasts - RIDOT released a series of videocasts beginning October 1, 2007, in which hosts explain stages in the project's completion