Adelaida Area Hydrogeologic Study

The County of San Luis Obispo is coordinating with the U.S. Geological Survey (USGS) to conduct a hydrogeologic study in the Adelaida area west of the City of Paso Robles (click here for map of study area). It is anticipated that this study will provide a better understanding of the hydrogeoglogic conditions in the Adelaida area and provide a factual basis for the development and support of potential future groundwater management actions by the County.

Animal Services Facility

New animal services facility to be constructed at the County Operations Center off Highway 1.  The current and preliminary phase of this project includes consultant services to help develop the Project documents for a design build project procurement process.  Once developed a formal Request for Proposal will be made available to interested Design Build Entities.

This project was authorized as a joint effort between the County and Cities of Atascadero, Arroyo Grande, Grover Beach, Morro Bay, Paso Robles, Pismo Beach, and San Luis Obispo.

Avila Beach Drive at Highway 101 Interchange

Reconfiguration of the US 101 and Avila Beach Drive Interchange in the community of Avila.

Avila Beach Drive Capacity, Parking, and Circulation Study Updates

As part of a Parking Management Plan commissioned by the Port San Luis Harbor District including the town of Avila and the Harbor/Pier, San Luis Obispo Public Works is conducting a Capacity Analysis, Parking Study, and Circulation Study Update.

Avila Valley - San Luis Bay Drive Interchange Operations

Evaluation of traffic configurations at the San Luis Bay Drive at Highway 101 Interchage to accommodate both present day and near term traffic in the Community of Avila.

Cayucos Vets Hall Restoration

This project will stabilize, rehabilitate and restore the Cayucos Veterans Memorial Building (also known as the historic Cass Warehouse) at Cayucos State Beach and create a safe and usable facility for community activities. As a historic building that meets the criteria required for listing in the California Register of Historical Resources,the design for the rehabilitation will follow the Secretary of the Interior Standards for the restoration of historic buildings.

Co-Located Dispatch Facility

The County of San Luis Obispo is in the process of designing and constructing a new Co-Located Dispatch Facility. The Co-Located Dispatch will be located at the County Operations Center off Highway 1. When complete, the facility will replace two antiquated and overcrowded dispatch centers with an efficient, state-of-the-art facility that is able to meet Cal Fire/SLO County Fire and Sheriff Dispatch growing emergency service response needs.

Figure 1 below shows a conceptual layout of the Co-Located Dispatch Facility Site Plan.


El Camino Real Bridge Replacement Project, Santa Margarita

The project proposes replacing the existing bridge on El Camino Real over the Santa Margarita Creek with a new cast in place, concrete slab bridge.

Los Osos Wastewater Project

Evaluation and development of a wastewater treatment system for Los Osos, CA.

Main Street at Highway 101 Interchange in Templeton

Reconfiguration of the US 101 and Main Street Interchange in the community of Templeton.

Mid-Higuera Bypass Project

The Mid-Higuera Bypass Project is proposed to increase the flood control capacity of the San Luis Obispo Creek between Marsh Street and Madonna Road.

Nacimiento Water Project

One of the largest value projects the County has ever completed, the Nacimiento Water Project began operations in 2011 after the construction of the $176 million, 45-mile pipeline from Lake Nacimiento to San Luis Obispo was completed. Today County staff oversee the operations and management of the pipeline.

Oak Shores Wastewater Treatment Facility Upgrade

This project includes improvements to increase system capacity, provide nitrogen removal, increase flow capacity, and upgrade the collection system for the community of Oak Shores.

Oceano Drainage Improvement Project

This project is to construct drainage improvements to alleviate existing drainage issues in the town of Oceano at Highway 1.

Paso Basin Aerial Groundwater Mapping Pilot Study

Our community needs a more complete picture of our groundwater resources so that we can make better decisions about managing water into the future. The County of San Luis Obispo was fortunate enough to be among three agencies selected for a pilot study to collect groundwater data in a portion of the Paso Robles Basin (click for map of study area). This pilot study is using innovative technology that could change the way that California collects information about groundwater basins.

What would normally take the County years to survey will only take a few days thanks to new aerial groundwater mapping technology called Aerial Electromagnetic method (AEM). The County Public Works Department anticipates the survey will be conducted in mid-November 2019. 

State Route 227 and Los Ranchos Road Intersection Operational Improvements Project

The County of San Luis Obispo is in the preliminary engineering phase of a project to improve operations at the State Route 227 and Los Ranchos Road intersection. The County will be evaluating whether a roundabout is the best solution to address congestion at the intersection.

Figure 1 below shows a conceptual layout of what a roundabout at Los Ranchos might look like.


Tefft Street at Highway 101 Interchange

Reconfiguration of the US 101 and Tefft Street to reduce back up on the U.S. 101 off-ramps, improve capacity on Tefft Street, and improve intersection operations.

Winter Cloud Seeding Program for Lopez Lake and Salinas Reservoir

The County of San Luis Obispo Flood Control and Water Conservation District (District) is proposing a Winter Cloud Seeding Program for Lopez Lake and Salinas Reservoir (project). The project objective is to increase precipitation in the Lopez Lake and Salinas Reservoir watersheds during winter precipitation events. The seeding program would use a combination of approximately eight ground-seeding sites and aircraft.