Limantour, Lighthouse, and Chimney Rock Roads Pavement Preservation
Limantour, Lighthouse, and Chimney Rock roads are in Point Reyes National Seashore in Marin County, California. Limantour Road is approximately 7.6 miles long and begins at the intersection of Bear Valley Road and extends westward towards Limantour Beach. Lighthouse Road starts at the intersection with Sir Francis Drake Boulevard and proceeds westward 2.1 miles to the Historic Point Reyes Lighthouse. Chimney Rock Road starts at the intersection of Sir Francis Drake Boulevard proceeds 1.0 mile eastward and ends at Chimney Rock Parking Lot. Pavement on another 11.9 miles of road and 21 parking areas would be treated to extend the life of the paved surfaces and reduce maintenance costs.
The project includes upgrading road and parking surfaces and drainage features, installing new signs, striping the roads and parking areas, downsizing a beach-side parking area, and improving accessibility at two parking areas. Proposed road and parking area improvement work could begin as soon as 2018.
Most construction work will be limited to the existing road and parking area prisms and drainage ditches. Work on the culverts, drainage ditches, pullouts, and road approaches may disturb vegetation and soil associated with wetlands outside the existing roadway.
The purpose of the proposed action is to provide safe driving surfaces for all travelers on national seashore roads and to reduce the possibility of road failures and to reduce maintenance costs, while at the same time, having little or no impacts to the adjacent environment and adhering to the management philosophy for visitor access as outlined in the General Management Plan: Point Reyes National Seashore (NPS 1980). The roads were originally unimproved dirt roads that were chip sealed and some roads have never had a full asphalt pavement surface installed. The roads and parking areas are now at an age where a comprehensive repair project is needed to ensure continued service for decades to come. They are deteriorating at an accelerated pace and may require vehicle restrictions or closures if not rehabilitated in the near future. The project roads and connected parking areas need to be rehabilitated and paved surfaces restored to extend their service life, and/or reduce long-term maintenance requirements.
The project is needed because:
- If left untreated, the weathering and cracking of the project roads and parking surfaces could lead to pavement failure requiring increased maintenance and major repairs.
- A landslide damaged a 200-foot section of Limantour Road.
- Damaged or inadequately sized culverts on Limantour Road and Chimney Rock Road have caused and could cause substantial road damage.
- Drainage control issues on Chimney Rock Road have resulted in saturated road base and substantial damage to a road surface that is prone to failure because it is only a double chip seal on native material.
- Narrow travel lanes with limited and undersized passing locations on Chimney Rock Road force large buses to drive off the pavement.
- The Lighthouse and Chimney Rock parking areas lack pedestrian walkways and do not meet current accessibility standards.
- South Beach Parking area is oversized for the level of visitor parking needed for that area.
More information is available at the National Park Service website
Key Project Dates
Advertise: Winter 2018/19
Construction: Spring 2019 - Fall 2020
Current road contions.
|Project #||CA FTNP PORE 10(4)200(1)201|
|Project Name||Limantour, Lighthouse, and Chimney Rock Roads Pavement Preservation|
|FLMA||Point Reyes National Seashore|
Project Manager: Nate Allen
Federal Highway Administration
Central Federal Lands Highway Division
12300 West Dakota Avenue
Lakewood, CO 80228