Little Tujunga Canyon Road over Buck Canyon Bridge Replacement

Summary

SCH Number
2019049126
Lead Agency
Los Angeles County
Document Title
Little Tujunga Canyon Road over Buck Canyon Bridge Replacement
Document Type
MND - Mitigated Negative Declaration
Received
Project Applicant
Los Angeles County Department of Public Works
Present Land Use
GPD: Little Tujunga Canyon Road is designated "Limited Secondary Highway" by the Los Angeles County General Plan 2035 (General Plan) Mobility Element. The project site is located within the boundaries of the Antelope Valley Area Plan of the General Plan, as shown on General Plan Figure 5.1, "Planning Areas Framework." The land use designations within and adjacent to the project area include RL-10 (Rural Land 1 dwelling unit [du]/10 gross acres [acl) and OS-NF (Open Space National Forest), as shown on the Antelope Volley Area Plan Land Use Map. Z: As roadway facility, Little Tujunga Canyon Road does not have a designation under the County of Los Angeles Development Code. However, the zoning designation for the project area is W (Watershed), as shown on the Antelope Valley Area Plan Zoning Map.

Document Description
The proposed project would implement the re placement of the existing bridge and reconstruction of the adjacent roadway to improve operations and safety in the project area. The new bridge would be a 65-foot-long, 42-foot-wide single-span precast, pre-stressed concrete I-girder structure supported by abutments on deep pile foundations across Buck Canyon Creek. The new bridge would consist of a 12-foot lane and 5-foot shoulder in each direction. Concrete barrie rs with tubular handrails would be installed on both sides of the. bridge. New wingwalls would be constructed; the top of the new concrete deck is expected to be approximately one foot above the existing deck. The project would also include approximately 385 feet of roadway reconstruction, including approximately 235 feet on the north side of the bridge and 150 feet on the south side of the bridge. The reconstructed roadway width would vary from the existing 26 feet to 34 feet, in order to accommodate the new travel lane and shoulder widths on the bridge. Metal beam guardrails would be installed at the approach corners.

Contact Information
Ebigalle Voigt
County of Los Angeles
900 S. Fremont Avenue , 11th Floor
Los Angeles, CA 91803

Phone : (626) 458-3967

Location

Coordinates
34°19'41.12"N 118°20'25"W
Cities
Sylmar
Counties
Los Angeles
Cross Streets
Little Tujunga Canyon Road (between Gold Creek Road and Edison Road)
Zip
91342
Parcel #
2581-019-301
Waterways
Buck Canyon Creek
Township
3N
Range
14W
Section
21
Base
W

Notice of Completion

Review Period Start
Review Period End
Development Type
Transportation (Bridge Replacement)
Local Action
Site Plan
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Coastal Zone Drainage/Absorption Flood Plain/Flooding Forest Land/Fire Hazard Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Schools/Universities Septic System Sewer Capacity Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Tribal Cultural Resources Vegetation Water Quality Water Supply Wetland/Riparian Growth Inducing Land Use Cumulative Effects Cultural
Reviewing Agencies
Air Resources Board, Transportation Projects California Department of Parks and Recreation Department of Toxic Substances Control Department of Water Resources Native American Heritage Commission Regional Water Quality Control Board, Region 4 Resources Agency Resources, Recycling and Recovery State Water Resources Control Board, Division of Water Quality Department of Fish and Wildlife, Region 5 Caltrans, District 7

Attachments

Environmental Document
A_AQ-GHG Data   PDF 191 K B_Natural Environment Study   PDF 10580 K C_Cultural Resources Assessment   PDF 8696 K D_Limited Haz Mat Survey   PDF 2996 K E_Noise Data   PDF 64 K Little Tujunga-Buck Canyon Bridge_Public Review IS-MND_Apr 2   PDF 20281 K NOI   PDF 1562 K SUM FORM   PDF 51 K
NOC
NOC   PDF 718 K
State Comments
2019049126 cdfw   PDF 1508 K CALTRANS 2019049126   PDF 716 K
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