07 - Laserfiche WebLink

SUNOL BOULEVARD/I-680 IMPROVEMENTS PA&FD Category 5 (not eligible for the NRHP). The overcrossing is also identified as the Pleasanton-Sunol Road Overcrossing of the Niles Canyon Transcontinental Railroad Historic District. However,the NRHP registration form states that the Pleasanton-Sunol Road Overcrossing is not a contributing element to the district. The project is not expected to have adverse effects on the historic district. This would be summarized in a Historic Properties Survey Report(HPSR), along with the findings of the reports described above. A Finding of Effect would also be prepared to address the project's effects to the historic property and provided to CSO for approval and to SHPO for concurrence. Historic resources in the APE will be considered for Section 4(f)as appropriate. Section 4(f)will be discussed in the environmental document. Subtask 4.4 Visual and Aesthetics. Within the project limits, I-680 consists of a six-lane freeway that traverses in a north- south direction. The viewshed in the project area is characterized by rolling hills with stands of mature trees, shrubs, and grasses. In most places I-680 is buffered from residential views by rolling hills. I-680 is listed as an Officially Designated State Scenic Highway between Mission Boulevard(SR 238)and the Contra Costa County line in Alameda County(PM R6.4 to R21.9),which includes the project limits. 1-680 in the project limits is not designated as a Landscaped Freeway. Based on the Caltrans VIA questionnaire,a Minor Level VIA would be appropriate to characterize the visual quality of the project viewshed, describe the two Build Alternatives, summarize their anticipated visual effects, and recommend feasible avoidance and mitigation measures, if needed. CONSULTANT would confirm the appropriate level of documentation with Caltrans. Visual simulations are optional for a Minor Level VIA; however, up to two visual simulations for each alternative are included in this scope to facilitate CITY and public discussion and decision making on the project. Up to four simulations,representing two build alternatives from two key viewpoints each, are proposed. Viewpoints would be confirmed in consultation with CITY and Caltrans. Subtask 4.5 Phase I Hazardous Waste Assessment. The Initial Site Assessment(ISA) for the I-680 Express Lanes from SR 84 to Alcosta Boulevard Project(EA 04-0Q3000)' includes the I-680/Sunol Boulevard interchange and vicinity. The ISA shows that a Kinder Morgan petroleum pipeline crosses Pleasanton- Sunol Road at the rail overcrossing. Four closed release sites, one of which is subject to land use restrictions,are also present within a 0.5-mile buffer of the project area. The ISA for EA 04-0Q3000 should be applicable for PA&ED review, although a records search update is recommended to determine if any notable changes have occurred. CONSULTANT will prepare a memorandum that incorporates the ISA for EA 04- 1 Baseline Environmental Consulting.2018. Initial Site Assessment for the 1-680 Express Lanes from SR 84 to Alcosta Boulevard Project. EA 04-0Q300; PID 0418000069. September. April 90,2020 13