East Country Club Reconstruction, Phase 5

EAST COUNTRY CLUB RECONSTRUCTION, PHASE 5 Project Description Project Location: Canal Drive: west end to east end; Carlton Avenue: south end to Country Club Boulevard; Marine Avenue: south end to Country Club Boulevard. See attached Vicinity Map. Project Justification: Canal Drive consists of 28-foot-wide asphalt concrete pavement, the original construction date is unknown. The curb and gutter measure 2 feet (1 foot of curb and 1 foot of gutter) with a 3-foot sidewalk on the south side of Canal Drive. There is only a 1-foot curb on the north side of Canal Drive. The right-of-way width is 50 feet and the back-of-walk (BOW) to back of curb width is 34 feet. Wallace-Kuhl & Associates collected data cores at Canal Drive in 2020 and indicated that the structural section is 5 inches of asphalt concrete over 3 inches of aggregate base. Historical data indicates periodic slurry seal treatments on said streets, with the last application occurring in 2020. Carlton Avenue consists of 29-foot-wide asphalt concrete pavement and was constructed in 1952. The roadway tapers to a 28-foot-wide roadway south of South Tuxedo Avenue to the south end of Carlton Avenue. As-builts on file indicate that the existing roadway was constructed in 1952 with 2 inches of asphalt concrete over 6 inches of aggregate base. Curb and gutter measure 2 feet (1 foot of curb and 1 foot of gutter) with a 4-foot sidewalk on the west side of the roadway from the south end of Carlton Avenue to Country Club Boulevard and on the east side of the roadway from South Tuxedo Avenue to the south end. Curb and gutter measure 2 feet (1 foot of curb and 1 foot of gutter) with a 3-foot sidewalk on the east side of the roadway from South Tuxedo Avenue to Country Club Boulevard. The existing BOW width is 40 feet, and the right-of-way width is 40 feet. Marine Avenue consists of 28-foot-wide asphalt concrete pavement; the original construction date and structural section are unknown. Curb and gutter measure 2 feet (1 foot of curb and 1 foot of gutter) with a 3-foot sidewalk from south end to Middlefield Avenue. Curb and gutter measure 2 feet (1 foot of curb and 1 foot of gutter) with a 4-foot sidewalk from Middlefield Avenue to Country Club Boulevard on the west side. Curb and gutter measure 2 feet (1 foot of curb and 1 foot of gutter) with a 3-foot sidewalk from Middlefield Avenue to Country Club Boulevard on the east side. The right-of-way width is 50 feet. Historical data indicates periodic slurry seal treatments on said street, with the last application occurring in 2020. On Canal Drive, the existing pavement surface has light alligator cracking, moderate block, cracking traverse, and longitudinal cracking. The pavement is in poor condition. These conditions are likely due to underlying expansive soils, high groundwater, and poor drainage. In addition, these conditions have adversely affected portions of the existing curb, gutter, and sidewalk (CG&S), causing localized drainage problems and vertically displaced walkways. Existing gutter pan surface has been paved over/slurry sealed. Existing sidewalk has some cracking, including some severe cracking on the east side of Canal Drive. Existing sidewalk width is also not Americans with Disabilities Act (ADA) compliant. On Carlton Avenue, there is some longitudinal cracking on some of the sidewalk panels just south of Country Club Boulevard. On Marine Avenue, the existing pavement surface has heavy alligator cracking, block cracking, rutting, transverse, and longitudinal cracking. Pavement is in poor condition. These conditions are due to underlying expansive soils, high groundwater, and poor drainage. In addition, these conditions have adversely affected portions of the existing CG&S, causing localized drainage problems and vertically displaced walkways. Existing gutter pan surface has been paved over/slurry sealed. Also, portions of existing sidewalk width are not ADA compliant. There is one panel of curb, gutter, and sidewalk that is constructed with asphalt. There is some cracking as well throughout the existing sidewalk as well. Scope of Work: The project will consist of: Canal Drive: 1. Reconstructing 880 linear feet of the existing roadway (28-feet). The reconstruction will lower the existing roadway profile to provide standard cross slopes (±2%), wherever possible. The new section will consist of 3.5 inches (0.30 feet) of HMA over 9 inches (0.75 feet) of Class 2 Aggregate Base on Subgrade Enhancement Geotextile. 2. Reconstructing approximately 880 linear feet of curb, gutter, and sidewalk (1-foot curb; 2-foot gutter; and 4-foot sidewalk), totaling 100% of CG&S on the south side of Canal Drive. The project will also reconstruct approximately 880 linear feet of curb and gutter (1-foot curb; 2-foot gutter) on the north side of Canal Drive. 3. Shifting the roadway 1-foot north to replace the 3-foot sidewalk with a 4- foot sidewalk to maintain an overall roadway surface of 28 feet (including 2 feet of gutter on both sides) and constructing 7-foot CG&S on the south side, matching the existing BOW. The new curb on the north will be shifted 1-foot towards the existing properties as a result. 4. Sending letters to affected residents informing them of their options to remove their encroaching frontage improvements, including the existing sidewalk drains and driveway gates on tracks. Carlton Avenue: 5. Replacing areas of broken curb, gutter, and sidewalk in kind at failed areas. Marine Avenue: 6. Reconstructing 1,040 linear feet of the existing roadway (28-feet). The reconstruction will lower the existing roadway profile to provide standard cross slopes (±2%), wherever possible. The new section will consist of 3.5 inches (0.30 feet) of HMA over 9 inches (0.75 feet) of Class 2 Aggregate Base on Subgrade Enhancement Geotextile. 7. Reconstructing approximately 2,080 linear feet of curb, gutter, and sidewalk (1-foot curb; 2-foot gutter; and 4-foot walk), totaling 100% of CG&S for Marine Drive. 8. Relocating the BOW 1 foot towards the existing properties to maintain an overall roadway surface of 28 feet (including 2 feet of gutter on both sides) and constructing 7-foot CG&S on both sides. 9. Sending letters to affected residents informing them of their options to relocate their encroaching frontage improvements. 10. Limiting construction equipment to light weight graders/excavators and rollers, with little to no compaction of the sub-grade to avoid heaving and pumping conditions due to the expansive nature of the soils in the area and the historical near-surface groundwater levels in the project area. 11. Replacing driveways within the CG&S replacement locations from BOW to a conform point having a 10% maximum slope profile. Restoring frontages adjacent to CG&S removal/replacement with sod to their original condition. Environmental Setting: In these portions of the San Joaquin County, land usage is primarily residential. There are many large trees adjacent to the project area. Nesting and migratory birds, protected by the Migratory Bird Treaty Act, may nest within these trees. Furthermore, the Swainson’s Hawk, a raptor species of concern within the State of California and listed as threatened may nest adjacent to or within the project area. A pre-construction survey for nesting Swainson’s Hawks and other migratory birds is recommended if construction is scheduled to occur from February 15th to September 1st. Beneficiaries: The public will see increased safety and fewer hazards with this reconstruction of roads, curbs, gutters, and sidewalks. Overall, there will be reduced maintenance concerns and more reliability within the project area.