State Route 183 Castroville Improvement

castroville improvement project logo showing buildings with pedestrians crossing the street on foot and by bike 

Project Description

The California Department of Transportation (known as Caltrans) proposes to address structural deficiencies and improve multimodal travel along State Route 183 (locally known as Merritt Street) through the census-designated town of Castroville in Monterey County from post mile R8.3 to 9.98. The project would rehabilitate the pavement, address essential bridge maintenance needs, and improve multimodal features, including transit stops, sidewalks, driveways, and curb ramps. The project would also install new Intelligent Transportation System features and improve aesthetics, bicycle network continuity, and pedestrian safety. More specifically, the proposed project would:

  • Rehabilitate, through cold planing and asphalt overlay, the pavement to improve the ride quality and prevent further deterioration.
  • Address the maintenance needs of the State Route 183/State Route 156 Separation Bridge (Bridge Number: 44-0185) through concrete spall repair and deck and crack sealing to prevent water intrusion into existing cracks.
  • Improve accessibility under the Americans with Disabilities Act to address deficiencies within the project limits where feasible
  • Reconstruct existing and construct new sidewalks, driveway tie-ins, curb ramps, extended curbs, crosswalks, and pedestrian crossing aids to improve access and connectivity for pedestrian users
  • Construct bus bays and landing areas, reconstruct existing transit stops, and relocate and combine some transit stops to improve access and connectivity for transit users.
  • Delineate Class 2 Bike Lanes at select locations to improve access and connectivity for bicycle users.
  • At the existing shared through and right-turn lane on northbound State Route 183 (Merritt Street) to the eastbound State Route 156 on-ramp the outside shoulders would be widen, construct striped splitter islands at select locations on Merritt Street between Salinas Street and Haro Street, and construct curb tapers on Merritt Street between Crane Street and Preston Street.
  • Replace existing traffic census stations with upgraded systems and install a closed-circuit television camera at the State Route 183 (Merritt Street) and State Route 156 interchange to improve data collection and reliability of real-time traffic data for traffic management purposes.
  • Widen the existing State highway right-of-way and acquire new right-of-way to construct roadway and multimodal access improvements along State Route 183 (Merritt Street).

State Route 183 (Merritt Street) is a conventional highway that serves as the “Main Street” through Castroville. The narrow right-of-way in this older, suburban setting makes it necessary to acquire permanent (or fee) right-of-way to complete sidewalk, curb ramp, and minor operational improvements; and to obtain Temporary Construction Easements for transitions or tie-ins on nearby property. Approximately 82 parcels would be impacted.

Project Location Map

Project Benefits

Purpose: The purpose of this project is to address structural deficiencies and improve multimodal travel along State Route 183 (locally known as Merritt Street) through the census-designated town of Castroville. More specifically, the following goals have been identified within the project limits:

  • Improve the ride quality and prevent further deterioration of the pavement.
  • Address bridge maintenance needs.
  • Improve accessibility under the Americans with Disabilities Act to address deficiencies within the project limits.
  • Increase and improve access and connectivity for public transit, bicycle, and pedestrian users along and across Merritt Street.
  • Improve highway user awareness of public transit, bicycle, and pedestrian users along and across Merritt Street.
  • Improve collection and reliability of real-time traffic data for traffic management purposes.

Need: The pavement within the project limits is showing signs of distress and unacceptable ride quality. Poor ride quality results from uneven road surfaces such as swells, bumps, sags, or depressions. The asphalt concrete pavement south of State Route 156 was reconstructed in 1978 and has provided more than 40 years of useful life; however, it needs to be rehabilitated. The asphalt concrete pavement from State Route 156 to State Route 1 was reconstructed in 1999 and needs a new surface wear course. If pavement improvements do not occur, the pavement will continue to deteriorate, leading to more costly repairs in the future.

The Bridge Inspection Report for the State Route 183/State Route 156 Separation Bridge (Bridge Number: 44-0185), dated August 2016, lists deck cracking as a deficiency, which, if unaddressed, would lead to water intrusion and rapid aging. Portions of the existing concrete deck and vertical bridge rail are deteriorating into small fragments or chips, which is also known as spalling. Portions where spalling has occurred would be repaired to prolong the service life of the bridge.

Per the Caltrans Complete Streets Program, a complete street is a transportation facility that is planned, designed, operated, and maintained to provide safe mobility for all users, including bicyclists, pedestrians, transit vehicles, truckers, and motorists appropriate to the function and context of the facility. Every complete street looks different because it is based on context, community preferences, the types of road users, and their needs. Merritt Street lacks the necessary infrastructure to make it a complete street.

Pedestrian facilities in the project limits are inconsistent and nonstandard in design with narrow sidewalks, steep driveways, missing or nonstandard curb ramps, and an absence of walkways at the back of driveways. These conditions create barriers for people with disabilities and discourage walking along Merritt Street. Pedestrians must walk over uneven pavement and navigate around street trees, light posts, newspaper stands, fire hydrants, and other items on the sidewalk. Most street trees do not have adequately sized planting wells, and tree roots have cracked and upended sidewalk pavement. Steep driveways and the absence of sidewalks along the back of driveways are one of many barriers to a pedestrian-friendly community, particularly for people with disabilities. The existing curb ramps are typically too steep, potentially causing wheelchairs to snag their footrests on the gutter.

Some of the signalized intersections within the project limits lack the newer, enhanced audible Accessible Pedestrian Signals and Countdown Pedestrian Signal head systems. An Accessible Pedestrian Signal and pedestrian push-button is an integrated device that communicates information about the “Walk/Don’t Walk” intervals at signalized intersections in nonvisual formats, like tones and vibrations. It provides a signal to the push-button that assists visually impaired persons when navigating the crossing movement. Countdown Pedestrian Signal head systems and the “Walk/Don’t Walk” and “Upraised Hand” signals display a numerical countdown of the seconds remaining for the pedestrian crossing interval.

The existing public transit stops within the project limits lack passenger loading and unloading areas that are compliant with Americans with Disabilities Act requirements. There is a makeshift transit stop in the narrow landscape buffer between Merritt Street and Merritt Way that requires people to walk in the dirt. Buses must often use the shoulder and encroach into the travel lane for the loading and unloading of passengers. Some of the existing public transit stops have constraints that limit opportunities to construct standard-sized loading and unloading areas and to improve access due to their location.

Bicycles are allowed on the entirety of Merritt Street, which is designated as a Class 3 Bikeway (bike route) through the State Route 156 interchange between Haro Street and Salinas Street. No bicycle features exist within the project limits, and without specific lane striping or other markers, there is nothing to alert motorists to a designated travel way for bicyclists. Bicycles share the road, use the shoulder, or travel in unmarked areas between parked cars and the through lane. Defined bicycle pathways along Merritt Street through the community could enhance driver awareness of bicycles in the flow stream. Furthermore, the project corridor lacks bicycle racks and dedicated bicycle parking to help bicyclists feel secure about their property. Some of the existing drainage grates in the road shoulder are nonstandard and have openings in the direction of travel, which can impede bicycle travel when a wheel gets caught in the drainage grates. This may result in sudden swerving or lane changes by bicyclists’ attempt to avoid these obstacles. The Federal Highway Administration recommends the use of drainage grates designed to minimize risks for bicyclists.

The existing State highway right-of-way width for Merritt Street within the project limits varies considerably, ranging from 66 feet to 123 feet. This results in a variety of roadway cross sections of the roadway with inconsistent dimensions for shoulders, sidewalks, driveways, and bicycle lanes. The outcome of this inconsistency is an intermittent and sporadic pattern of facilities along this segment of the highway corridor. Merritt Street is too narrow to accommodate the sidewalks, driveways, curb ramps, completion of a Class 2 bike lane, and the northbound right-turn lane at the eastbound on-ramp to State Route 156. Permanent (or fee) acquisitions of right-of-way and Temporary Construction Easements are necessary to make the needed improvements.

On-street parking is available within the project corridor. However, in some areas, on-street parking is restricted or prohibited because it conflicts with other uses and features in the project corridor due to limited space. In many of these places, the curb has not been painted red, or the paint has faded, leaving drivers misinformed about on-street parking options. Additionally, some areas with existing, permitted on-street parking interfere with roadway uses and features, which increases the potential for conflicts within the roadway. There are limited curbs and sidewalks along the northbound (east side) lane between Rico Street and Crane Street. Wide driveway approaches provide access to off-street parking for nearby businesses and residences. This results in poor visibility for vehicle parking maneuvers and potential conflicts with all users of the project corridor.

Traffic data collection is essential for traffic management decision-making and public awareness. The traffic census stations at Walsh Street, Pajaro Street, and Washington Street need replacement because they use outdated technology and require state workers to enter and cross the traveled lanes to set up and teardown the counting equipment. Traffic management frequently relies on closed-circuit television camera systems to monitor route efficiency and real-time traffic conditions. Traffic monitoring is limited for the area since there are no closed-circuit television camera systems at the State Route 183 and State Route 156 interchange.

Public Outreach

August 26,2020

A virtual town hall meeting was held for the project on Thursday August 26, 2020. During the virtual town hall meeting, the project was presented and input from the public was requested. The public expressed concern about excessive speed and congestion in the downtown area. They also expressed concerns with traffic coming from State Route 1 and not slowing when entering the downtown area.  As a result of public input the project will add traffic calming measures at select locations in the downtown area that would help reduce vehicle travel speeds and raise driver awareness of pedestrians entering the roadway.

May 7, 2021, to June 11, 2021

The public comment period for the draft environmental document started on Friday, May 7, 2021, and ended on Friday, June 11, 2021.

May 26, 2021

A virtual public meeting for the draft environmental document was hosted on Wednesday, May 26, 2021. The virtual public meeting will present information about the project and allowed members of the public to ask questions and provide comments. The virtual public meeting was held using the Cisco Webex online meeting platform. Participants were also able to attend the virtual public meeting by phone.

May 26, 2022

The Caltrans project development team, in association with TAMC and the Monterey County Supervisor, reached out to the community through various channels to invite them to an information meeting. Over 50 members of the community attended to learn about proposed project features and were given an opportunity to ask questions.

Estimated Funding Breakdown

State: $38,000,000
Construction Cost: $20,600,000


Caltrans has worked in partnership with the Transportation Agency for Monterey County, Monterey-Salinas Transit, Monterey County, Castroville Community Services District, and North County Recreation and Park Department to coordinate and develop the scope of this project.

Proposed Project Schedule 

  • Final environmental document completed: July 2021
  • Right-of-way acquisition to be completed: June 2024
  • Design to be completed: June 2024
  • Advertise: October 2024
  • Construction to begin: January 2025
  • Construction to be completed: October 2027


Project Contact Info

Jackson Ho, Project Manager
(805) 276-1114

Matt Fowler, Senior Generalist
(805) 542-4603

Kevin Drabinski, Public Affairs
(805) 549-3138

Public Information Office
Phone: (805) 549-3318


Title VI Information

The California Department of Transportation (Caltrans) assures that no person shall, on the basis of race, color, or national origin, be excluded from participation in, be denied the benefits of, or be otherwise subjected to discrimination under any program or activity receiving Federal financial assistance, as required by Title VI of the Civil Rights Act of 1964, as amended, the Civil Rights Restoration Act of 1987, and Federal Executive Order 12898 (Federal Actions to Address Environmental Justice in Minority Populations and Low-Income Populations).

Caltrans will make every effort to ensure nondiscrimination in all of its programs and activities, whether they are federally funded or not, and that services and benefits are fairly distributed to all people, regardless of race, color, or national origin. In addition, Caltrans will facilitate meaningful participation in the transportation planning process in a nondiscriminatory manner.