State Route 58 Widening Project - Bakersfield Freeways

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Chapter 4 Results: Biological Resources, Discussion of Impacts and Mitigation certain to occur. Project direct effects are further differentiated by permanent and temporary effects. Temporary effects are not expected to extend beyond the period of project construction, and occur where the area that is affected will be restored to preproject conditions following project construction. Permanent effects include those that occur at the time of construction and remain following project completion, and occur when the area is permanently converted from one cover/habitat type to another. Direct Effects The proposed project could result in the direct permanent loss of approximately 1.21 acre (0.18 acre non-native grassland, 1.00 acre ruderal/disturbed, and 0.03 acre open water/waterway) of kit fox habitat, which represent both potential foraging and denning habitat for this species, and temporary effects to approximately 6.61 acres (3.25 acres of non-native grassland, 3.30 acres of ruderal/disturbed areas, and 0.06 acre of open water/waterway) of kit fox habitat. Direct, permanent effects include the removal of non-native grassland, ruderal/disturbed, and open water/waterways to accommodate the new roadbed, intersection improvements, and proposed new ROW limits. Direct temporary effects include disturbance during construction of the project to provide access and staging areas of the proposed project. Kit fox could forage and den in this habitat and the permanent loss and temporary disturbance of habitat could cause kit fox to move elsewhere in search of foraging and denning opportunities (Table 3). Of the dens identified in the BSA during 2008 surveys, one den is located within the project footprint and could be directly permanently eliminated during project construction. This estimate of den loss is based on those dens identified within the project footprints during 2008 surveys and could change if kit fox create additional dens or abandon dens in the project footprint, or if the footprint limits are extended or reduced. Loss of dens could result in kit fox displacement. Disturbances associated with the construction of the proposed project may also temporarily affect the San Joaquin kit fox. Kit foxes could be struck by construction equipment or other vehicles or become entrapped in dens during ground disturbing activities. Noise and light pollution during construction are considered direct effects as they may prevent kit foxes from foraging, mating, or rearing their young. 34 State Route 58 Widening Project Biological Assessment
Chapter 4 Results: Biological Resources, Discussion of Impacts and Mitigation Vegetation Types Table 3 Habitat a for San Joaquin Kit Fox That Would be Affected by the Proposed Project Total Existing in the BSA (acres) Permanent Effect At-grade Widening (acres) Permanent Effect Grade Separation at Landco Drive (acres) Temporary Effect Atgrade Widening (acres) Temporary Effect Grade Separation at Landco Drive (acres) Total Project Effect (acres) Non-native Grassland 64.83 0.16 0.02 3.17 0.08 3.43 Ruderal/Disturbed 54.91 0.53 0.47 2.78 0.52 4.30 Open Water/Waterways a, b 9.29 0.03 0.00 0.06 0.00 0.09 a b c Total c 129.03 0.72 0.49 6.01 0.60 7.82 This effect includes the widened portion of the bridge over Calloway Canal. Open water/waterway is the mapping unit to describe areas potentially within the jurisdiction of the USACE, the CDFG, and the RWQCB, primarily the canals within the BSA. These areas are vegetated with non-native grassland vegetation. Developed/ornamental areas that are surrounded by open space also present potential habitat opportunities for the San Joaquin kit fox; however, this habitat type has not been included in the table because the overall Developed/Ornamental vegetation type as mapped is characterized as primarily developed. State Route 58 Widening Project Biological Assessment 35
Page 1 and 2: State Route 58 Widening Project (Ro
Page 5 and 6: Summary of Findings, Conclusions an
Page 7 and 8: Summary of Findings, Conclusions an
Page 9 and 10: Table of Contents Table of Contents
Page 11 and 12: List of Tables List of Tables 1 Lis
Page 13 and 14: List of Abbreviated Terms SSC ST TR
Page 15 and 16: Chapter 1. Introduction The purpose
Page 17 and 18: Chapter 1 Introduction • Minor ch
Page 19 and 20: 46 Lost Hills 33 Delano McFarland 4
Page 21 and 22: Map Extent A B C VERDUGO LN CALLOWA
Page 23 and 24: Chapter 1 Introduction 1.2.1. Proje
Page 25 and 26: Chapter 1 Introduction In 2008, USF
Page 27 and 28: Chapter 2. Study Methods 2.1. Liste
Page 29 and 30: Chapter 2 Study Methods 2.2. Studie
Page 31 and 32: Chapter 2 Study Methods During surv
Page 33 and 34: Chapter 2 Study Methods describes p
Page 35 and 36: Chapter 2 Study Methods 2.5. Limita
Page 37 and 38: Chapter 3. Results: Environmental S
Page 39 and 40: ALLEN RD OLD FARM RD JEWETTA AV VER
Page 41 and 42: Emery Ditch Calloway Canal Emery Di
Page 43 and 44: Chapter 3 Results: Environmental Se
Page 45 and 46: Chapter 3 Results: Environmental Se
Page 47 and 48: Chapter 4. Results: Biological Reso
Page 49 and 50: Chapter 4 Results: Biological Resou
Page 51: Chapter 4 Results: Biological Resou
Page 63 and 64: Chapter 5. Conclusions and Determin
Page 65 and 66: Chapter 6. References Bakersfield,
Page 67 and 68: Chapter 6 References Kern Water Ban
Page 69: Appendix A Wildlife Species Observe
Page 72 and 73: Appendix A Wildlife Species Observe

State Route 58 Widening Project - Bakersfield Freeways

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