Naples Seawall Interim and Long Range Repair Project

Summary

SCH Number
2010011073
Lead Agency
Long Beach, City of (City of Long Beach)
Document Title
Naples Seawall Interim and Long Range Repair Project
Document Type
MND - Mitigated Negative Declaration
Received

Document Description
The intent of the project is to identify viable options for the stabilization of the seawall in its present deteriorating state and extend the life of the seawalls. An investigation of the distressed concrete sheet pile seawall, was performed to analyze its stability, and develop repair concepts. Engineers have assessed the various factors contributing to the seawall's horizontal, vertical, and rotational displacements from the original constructed positions. Interim as well as long range have been recommended. Interim repairs would consist of sinkhole repairs (gravel filled bag system beneath sinkholes), a tieback system (grouted rods to relieve stress), and scour repairs (underwater rock protection). Since the existing seawalls are currently 70 years old, a replacement program (long range repairs) was also recommended. Long range repairs would include the option of waterside or landside repairs.

Contact Information
Mark Christoffels
City of Long Beach
333 W. Ocean Boulevard
Long Beach, CA 90802

562-570-6771

Location

Coordinates
33°45'15.91"N 118°7'33.50"W
Cities
Long Beach
Counties
Los Angeles
Cross Streets
The Toledo and Rivo Alto Canal
Zip
90802
Railways
Yes
Schools
Yes
Waterways
Alamitos Bay, Los Cerritos Channel, San Gabriel River, Anaheim Bay, Pacific Ocean
Township
5S
Range
12W
Base
SBB&M

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (seawall repair Type)
Local Action
Local Coastal Permit
Project Issues
Cumulative Effects Landuse Growth Inducing Wildlife Wetland/Riparian Water Supply Water Quality Vegetation Traffic/Circulation Toxic/Hazardous Solid Waste Soil Erosion/Compaction/Grading Sewer Capacity Septic System Schools/Universities Recreation/Parks Public Services Population/Housing Balance Noise Minerals Geologic/Seismic Forest Land/Fire Hazard Flood Plain/Flooding Drainage/Absorption Coastal Zone Biological Resources Archaeologic-Historic Air Quality Agricultural Land Aesthetic/Visual
Reviewing Agencies
Caltrans, District 7 California Coastal Commission California Department of Boating and Waterways California Department of Parks and Recreation Department of Conservation Department of Fish and Wildlife, Region 5 Department of Water Resources Native American Heritage Commission Office of Emergency Services, California Office of Historic Preservation Regional Water Quality Control Board, Region 4 Resources Agency State Lands Commission
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