Caltrans – $14 million
In October 2007, a crash in a tunnel on I-5 north of Los Angeles turned into a chain-reaction pileup, and started a massive fire that burned for over a day. Because I-5 is a major travel route, as well as the fact that this tunnel has freeway lanes running over top of it, an emergency was declared by the State of California. Security Paving responded to this emergency by reviewing the plans on a Friday, and submitted a bid the following Monday morning.
By Monday afternoon, a contract was executed, and the repairs were started immediately. The scope of work Security completed for the emergency repairs included chipping portions of the existing walls and ceiling, replacing it with superfast shotcrete; and replacing the existing concrete pavement in the tunnel, utilizing white cement. Security worked closely with the pavement designers for Caltrans to develop an innovative highly reflective white cement that was placed in the tunnel. This allowed for greater visibility while traveling through this dark tunnel section.
Approximately 90 feet of the tunnel adjacent to the accident site had to be entirely replaced. Precast girders were used to replace the ceiling of the damaged section, allowing the work to be completed in just 17 days. The original contract allowed for 30 days to complete the needed repairs.
The project was completed and the freeway reopened to the public quickly due to Security’s commitment to partnering with Caltrans to deliver a high quality with minimized impact to the traveling public.
Caltrans – $120 million
Started in 2012, ROUTE 5 Norwalk consists of reconstructing Interstate 5 between Silverbow Avenue and Orr and Day in the city of Norwalk. The nearly 2 mile project will widen the northbound and southbound lanes from 3 to 6 lanes in each direction.
The new elevated lanes will be constructed by widening the existing freeway and on top of the existing lanes while maintaining 3 lanes in each direction at all times. In order for this to be achieved retaining walls with extensive architectural treatment up to 32 feet will be constructed along the 2 mile alignment in each direction. On top of the retaining wall sounds, walls 12’ to 16’ will be constructed to provide a local noise barrier. Within the 2 mile project, 3 new bridges will be constructed to replace existing bridges at San Antonio, Imperial Highway & Pioneer Blvd. The existing bridges were constructed in 1953. It is noted that the one span bridge at San Antonio under crossing incorporates the longest precast concrete girders spanning 158’ in length, 84’ in height, the longest in state history. A new southbound off-ramp at Imperial Highway replaces the existing off-ramp at Pioneer Blvd. In addition, the project will incorporate a realignment and construction of new frontage roads to assist in facilitating traffic movement within the City of Norwalk. Work on the project started February 2013 and the scheduled completion date is mid-2018.
City of Bakersfield – $ 154 million
Security constructed this multi-phase project, Phases 1, 2, 4 & 6B (Phase 2 included phase 3 and 5), 6C with a combined value of $154 million, as a new east-west freeway extending from Truxtun Avenue to Heath Road. This project was constructed to create an east-west thoroughfare through Bakersfield to replace an existing signalized over-capacity thoroughfare and ultimately provide a continuous East/West SR 58 through Bakersfield in lieu of the disconnected route 58. The new roadway links downtown Bakersfield and rural Bakersfield, reducing the average commute time by over an hour each day for local traffic. This project also created a north-south connection over The Kern River that cut the time crossing this area from 45 minutes to 3 minutes.
Phase 1 – Mohawk street extension, From Tuxtun Avenue to Rosedale hwy.
Phase 2 – A six-lane freeway from Mohawk Street to Allen Road (4.25 miles) with full interchanges at Mohawk Street, Coffee Road, Calloway Drive, a bridge at Jewetta Avenue, and sound walls adjacent to residential areas, 2 sewer lift stations, a storm water pump plant, 6 miles of sound wall, and numerous retaining walls. SPC constructed the sound walls utilizing temporary construction easements allowing encroachment onto private property to construct these sound walls and then had to restore the property back to original condition.
(Note: Phase 2 included phases 3 and 5, in other words SPC constructed all phases of the Westside Parkway)
Phase 4 – (The Truxtun Tie-in) completed the eastern end of the new freeway between Mohawk Street and Truxtun Avenue.
Phase 6B – Westside Parkway Phase 6B (Allen Road Interchange) in the City of Bakersfield consisted of constructing a partial interchange at Allen Rd and the Westside Parkway including the Allen Rd bridge, the eastbound on ramp and the westbound off ramp.
The SR 180 East project constructed 3.2 miles of freeway with four concrete travel lanes, concrete outside shoulder, asphalt median shoulder, 12 CIP Box Girder Bridges, two full signalized interchanges, drainage basins, a CIP Type 1 retaining wall, and local street improvements. Two of the bridges were constructed over Fancher Creek.
This project was under an accelerated schedule and the new Caltrans schedule requirements that required a project to begin 55 days after contract award, with an approved baseline schedule. It had to be staged to allow for utility relocations to meet the compressed schedule. Security worked in collaboration with Caltrans, the Public Works Departments for both cities, and the local utilities to work through the challenges that came with relocating the utilities, working on city streets, and working on an existing freeway. The collaborative approach that Security took to the schedule resulted in a baseline schedule being approved within the 55 day time frame, providing an overall schedule for Security’s work, as well as that of the various public works departments and utilities.
The needs of the cities and utilities were incorporated into the project schedule, giving each stakeholder a chance to provide input and approve the schedule. Through this coordination and Security’s ability to accelerate work where necessary, the project had minimal impacts on the traveling public and local businesses. Much of Security’s work was done at night, in order to keep the traveling public and the construction crews safe. When full closures of interchanges were required, Security worked to develop and public alternative routes and detours early and clearly to keep the flow of traffic.
The SR 180 project was completed on-time and on-budget to the satisfaction of Caltrans, the Cities of Fresno and Clovis, and the traveling public.
Caltrans – $54 million
This project rehabilitated pavements at various locations from the Route 15/60 separation to the Seventh Street Undercrossing on Route 15. This was one of the first projects to construct precast panel lane replacement in the State of California; it was also one of six statewide projects using ROCIP funding.
The project constructed six widened bridges, including one overhead, in the median between the northbound and southbound lanes between the I-15 and CA 60 Separation and Sixth Street. After completing work in the median, the project required that Security replace a majority of the existing pavements in lanes #3 and #4.
The contract allowed up to 32 extended weekend closures for reconstructing freeway and connector lanes and ramps; Security was able to successfully complete the project using only 14 weekend closures. This was due in large part to having an on-site batch plant, multiple crews working simultaneously, and using raid set concrete designed by Security to expedite the time needed. An efficient schedule, broken down by hour, was used not only for the weekend closures, but also for the night work in order to ensure the freeway was open to the traveling public each day.
Caltrans – $62 million
This $62 million project consisted of median widening Route 23 from 2 lanes to 3 lanes for 8 miles in each direction, including the median widening of seven bridges and construction of retaining walls and sound walls. Security also constructed new drainage systems, concrete barriers, and approach slabs. The project required the excavation of approximately 13.2 meters of the existing 20 meters of dirt median, a lane, and shoulder in each direction.
The project was successfully completed 328 working days ahead of schedule, due to the innovative methods used by Security, including placement of temporary asphalt in the median to allow the early construction on sound walls. Security also used a portable concrete batch plant on-site to produce the Lean Concrete Base and Concrete pavement for the project. We were able to recycle most of the removed roadway and bridges, using the products as CL3 aggregate base.
This project replaced the existing bridges at Milpas Street Undercrossing and Sycamore Creek, and constructed a new bridge at Cacique Street Undercrossing. Route 101 was also widened from 2 lanes to 3 lanes in each direction, and a new roundabout was constructed in Montecity. Security constructed this project in 3 stages to allow traffic to flow unimpeded during construction. Security also proposed that the new roundabout be constructed in one stage, rather than four, alleviating the bottlenecking issues that were occurring at the intersection of Cabrillo Street/Hot Springs Road/Coast Village Road.
This project replaced the PCC slabs and Cold Plane AC in Thousand Oaks and Camarillo. Security used temporary nighttime lane closures to allow traffic to flow unimpeded during the day and complete the project in just 100 working days.
Caltrans – $82 million
L.A.W.A. – Van Nuys Airport Runway 16R Reconstruction – $13 million
This project rehabilitated and modernized the airport’s 8,000ft runway (16R/34L) to meet current Federal Aviation Administration design standards. A combination of asphalt overlay and partial reconstruction was phased over three sections of the main runway (north, south and center). The project included:
- Mill and overlay 4,400sf of the runway’s center section
- Enhancements to the run-up area
- Installation of a new blast fence
- Repairs on existing concrete runway ends
- Reconstruction of runway and shoulder pavements
- Updated lighting and airfield markings
Crews worked around the clock in order to minimize impact to air travel through one of the world’s busiest general aviation airports. Construction began in November 2012 and completed in August 2013.