Transportation systems are vital to our country and our economy. At SVS we know that the keys to successful transportation projects are traffic efficiency and, above all, safety to the traveling public. Our transportation experience covers a broad range of state departments of transportation, federal agencies, county and regional transportation authorities, airport authorities, transit authorities, as well as various city and county municipalities. Our project experience includes city streets, state highways, U.S. highways, interstate highways, major urban interchanges, rural highway interchanges, two-lane to eight-lane bridges, major river crossings, railroad bridges, railroads, transit facilities, harbor deepening, river dredging locks and dams, and airport facilities.
Rehabilitation of the Grand Concourse Bridge
Originally constructed in 1906, the Grand Concourse Bridge spans the Metro North Railroad and carries the subway (No. 4 line) underneath. The skewed, single span bridge was reconstructed in 1982, but has sustained deterioration to the structural steel since that time which is to be replaced, along with the bridge deck and re-routing of existing utilities that traverse the deck. In addition, there is a requirement that the highway bridge be independent structurally from the subway structure. This project is also being constructed in a highly populated and travelled area. The VE Team developed alternatives to save the City of New York approximately 75% of the estimated construction cost and significant construction time.
Bridge Improvements along I-80
The proposed improvements on a 16-mile stretch of I-80 include HMA pavement patching, resurfacing mainline pavement, shoulders and ramps, as well as performing minor to moderate bridge deck and substructure repairs. There are eight interchanges and 28 mainline bridge structures within this corridor. This near-term project intends to improve geometric, drainage, bridge deficiencies, safety concerns, and traffic congestion that will extend the service life of I-80 before a long-term plan can be prepared, financed, and implemented. The study identified approximately 15% savings on the construction cost in addition to a significant savings on the operations and maintenance costs of the project.
Positive Train Controls Project
With more and more train accidents occurring due to user error by conductors, there is a need to implement a positive train control system on a 50-mile section of a heavily travelled commuter rail system. The project includes a new fiber optic communication backbone, wayside communication devices, locomotive-based communication equipment, and a backup control center. The Value study was conducted approximately one month before installation was scheduled to commence. The Value study identified several risks associated with the installation and made several recommendations to mitigate these risks as well as to improve the overall integrity and performance of the system.
Wisconsin High Speed Rail
This five-day value study looked at the project development of the High Speed Rail Corridor between Madison and Milwaukee, Wisconsin. The project includes 84 miles of track reconstruction to allow for passenger train travel up to 110 mph. Included are crossing upgrades, new stations in Madison, Watertown, and Brookfield, bridge replacements, and drainage improvements. Constructability was a major issue of the project especially in proactively managing operational outages to facilitate construction. The Value Team generated potential savings of $46 million that reduced the right of way to be purchased, improved pedestrian access, and relieved traffic concerns.
The New I-64
This $800 million project to reconstruct I-64/US 40 through a highly urbanized corridor in St. Louis, Missouri includes reconstruction of 11 interchanges, 52 bridges, and nearly 12 miles of six-lane freeways.
Concepts had been developed in support of an EIS that was being prepared for public review. Prior to public review, MoDOT requested that SVS conduct a value planning study to validate the planning level concept and to develop construction plans that would correspond to three different funding scenarios.
The first scenario was based on MoDOT obtaining full and upfront funding for the project. The second scenario considered getting annual funding for some large portions of the project with smaller funding portions in most years. The third scenario was based on obtaining the minimum annual funding required to be able to even construct the project.
For each scenario, the team developed a construction plan that contained staging and phasing, maintenance of traffic plans, construction schedules, funding cash flow diagrams, and demand curves on construction personnel. Based on the results of the study, MoDOT elected to perform the fully-funded scenario saving $535 Million and expediting the completion by 10 years.
Memorial Tollway Expansion & Revitalization
As part of the Tollway’s congestion relief program, SVS led three separate workshops on various pieces of a Tollway which includes adding lanes in each direction, construction of Toll Plazas, construction of auxiliary lanes, and rebuilding of a major River Bridge at a cost of $360 million. These multi-disciplinary teams that represented designers, users, maintenance and operations personnel, and owners provided recommendations that not only produced savings of over $75 million, but reduced conflicts during construction, simplified and reduced the construction period, and improved the overall quality of the project.
Westchester Avenue Bridge
This $30+ million project includes replacement of damaged steel girders, including the fascia girder under Westchester Avenue Bridge over Hutchinson River Parkway, reconstruction of the bridge deck, approaches, and sidewalks, along with replacement of two water mains. In addition, Hutchinson River Parkway is to be lowered 2.5 ft. This work includes reconstruction of the Parkway for approximately 1600 ft. to the north and south of the centerline of the Bridge, reconstruction of the existing drainage system for the roadway, and construction of a new concrete retaining wall south of the Westchester Avenue Bridge. The low clearance on the bridge has resulted in the girders being damaged from impacts with oversized vehicles, namely trucks, even though trucks are not permitted on the Parkway.
Safety and Weigh Facility
The new Sparta SWEF (Safety Weight and Enforcement Facility) is being constructed to provide modern mainline weigh-in-motion (WIM) technology, which requires 2.7 miles of freeway mainline between adjacent interchange ramps. Key features of the new 33.2 acre SWEF include: over a mile of new pavement; a 30-stall truck parking lot; a hazardous material truck parking location; and an 11,846 square feet Operations / Inspection Building.
The value team recommended alternatives that would reduce the earthwork required, reduce pairing costs, and optimize the building envelope and result in almost $1 million in savings.
US Route 34 at EJ&E/CN Railroad, Aurora, IL
This $40+ million project includes creating a grade separation at the US Route 34 crossing of the EJ&E/CN Railroad. Key project elements include construction of a new 253-foot long, three-span bridge structure with accommodations for an additional through lane in each direction in the future. Retaining walls are being used along both approaches to the new highway bridge to minimize right-of-way acquisition and impacts to adjacent properties.
The value team recommended alternatives with potential savings of over $11 million including an option to help lower the profile over the corridor that would avoid raising two existing high voltage transmission power lines; and refinements to the vertical curve length, and horizontal and vertical alignments at the east and west bridge approaches to reduce pavement requirements.