I-10 Cedar Ave Improvement Project, San Bernardino County, CA

This construction project is located at the Interstate 10 (I-10) Cedar Avenue interchange from PM 17.8 to 19.3. The improvements include widening the existing Cedar Avenue overcrossing (OC) from 6 to 10 lanes, replacing the Union Pacific Railroad overhead (OH), widening Cedar Avenue from 4 to 6 through lanes, and realigning and/or widening the interchange entrance and exit ramps. On Cedar Avenue, the project limits extend from Bloomington Avenue on the north to Slover Avenue on the south. The I-10 Cedar Avenue Improvements Project in the County of San Bernardino, California District 8, Interstate 10 consists of, but is not limited to, the following components: A. Widen Cedar Avenue between Bloomington Avenue and Orange Street from 4 to 6 through lanes; adding right turn lanes and vehicle storage for left turn lanes into the interchange entrance ramps; and adding bike lanes or shoulders on Cedar Avenue. B. The eastbound exit ramp will be widened from 2 to 3 lanes; and the westbound exit ramp will be widened from 2 to 4 lanes at the ramp termini respectively. C. Widen the I-10/Cedar OC to the east of the existing OC structure from 6 to 10 lanes. D. Replace the existing 3-span Cedar/Railroad OH with a single-span structure over the railroad. The new OH will be wider (to the east of existing OH structure) and slightly elevated to accommodate the deeper OH structure. E. Construct retaining walls along the eastbound exit ramp, eastbound entrance ramp and westbound exit ramp. F. Construct retaining walls between Cedar Avenue and Cedar Place at the southwest quadrant of the interchange, and between Cedar Avenue and alley at the northeast quadrant of the interchange. G. Construct 2 sound walls near the westbound ramps. H. Replace a segment of the existing concrete channel with reinforced box culvert. I. Modify or construct drainage system improvements at various locations. J. Provide stormwater treatment features to treat runoff from pavement surfaces. K. Modify or add traffic signals and ramp metering systems. L. Construct Water Valley Water District water pipes and improvements. M. Coordinate with other Utility companies for the relocation of their utilities, as needed, to accommodate the interchange improvements. N. Construct landscape with hardscape elements and plant materials. Questions due 7/14/22. Term is 550 working days.