The City of Porterville proposes to reconstruct a portion of Villa Street between Olive and Henderson Avenues, approximately one mile in length, to provide safe, improved access to retail opportunities, job centers, housing and other facilities in the city. The reconstruction would include the widening of Villa Street to the standard width of 60 ft right of way; upgrading traffic signal equipment at the intersections at Putnam Avenue and Morton Avenue; replacement of the bridge over Porter Slough; installation of a box culvert at Porter Slough; and the extension of the existing pipe culvert at Porter Slough Ditch. The activities located near the slough would most likely require environmental permitting efforts associated with the crossing of Porter Slough. The
reconstruction would also entail the installation of new concrete improvements where necessary along the one-mile stretch. Some of these activities would involve property acquisition as necessary. (See APN’s above.)
Porter Slough activities include the following:
• Complete demolition of the existing bridge over the Porter Slough (constructed in 1930 and modified
in 1953) which is a continuous three (3) span reinforced concrete (RC) slab on RC pier walls and RC diaphragm abutments with monolithic wingwalls. The proposed span configuration is 3 @ 16 feet.
• The proposed Porter Slough bridge structure will be a 10 ft x 10 ft, precast concrete box with culvert headwalls and wingwalls.
• Channel excavation and regrading in the Porter Slough Ditch of approximately 7,000 square feet = 0.16 acre.
• Bridge removal & grading for box culvert of approximately 3,000 square feet = 0.07 acre.
• Placing riprap rock slope protection along the banks for erosion protection.
• Installing geotextile fabric Class 8 in compliance with Caltrans Std. Spec. Section 72-1.03 for erosion protection.
• The soil beneath the existing floor would be excavated and recompacted prior to the construction of the new concrete floor.
• Any utilities encountered will be rerouted just outside the culvert.
• Remove portion of storm drain and outfall
• Remove portion of wood hand rail/ramp on existing bridge
• Remove portion of water line