The road becomes narrow, steep and winding at higher altitudes.
California’s transportation agency, Caltrans, will begin a major four-year project to repair a long section of Interstate 4, including the historic Ebbets Pass in the Sierra Nevada Mountains.
Work is now scheduled to begin on August 3 after being postponed.The $36.4 million project will cover about 31.7 miles of Interstate 4 in Alpine County. The route passes through well-known destinations such as Bear Valley, Alpine Lake, Mosquito Lakes and Pacific Valley before crossing Ebbetts Pass, one of the last remaining overland routes through the Sierra Nevada.The repair work aims to improve the old road while maintaining its current design.
The project is expected to be completed in the fall of 2030, Caltrans said.The project was originally scheduled to begin on July 13. However, Caltrans has postponed the start until Aug. 3 to minimize disruption during the Bear Valley Music Festival, which runs from July 17 to Aug. 2 and attracts about 4,000 visitors. Prior to this delay, only pre-construction survey work had been carried out.In a Facebook post announcing the change, Caltrans said: “#CaltransDistrict10 is working with Alpine County communities toward one of its Guidelines for Prosperity by delaying the State Route 4 Anchor Project to allow peak summer season activities to continue work on this project.”
The delay will not impact the overall construction schedule, as the project is still expected to be completed in the fall of 2030, Hooker said.Ebbetts Pass is registered as a California Historical Landmark.
Difficult mountain road
Repairing Ebbetts Pass is not easy due to the terrain. The route reaches an elevation of 8,050 feet at the Pacific Ridge. While most of Interstate 4 is two lanes, the road becomes narrow, steep and winding at higher elevations, with some sections reduced to one lane.
The highway is also closed during the winter due to heavy snowfall. The project will not expand single-lane sections, Caltrans said.“There are a set of unique challenges facing Caltrans and the contractor when performing work along scenic highways in the mountains,” Caltrans spokesman Brian Hooker told SFGATE.“Some of these challenges include steep mountainous terrain, narrow highway corridors, potentially short construction windows based on seasonal weather patterns, as well as providing accommodations for outdoor recreational activities and local economies that rely largely on tourism.”
Road repaving
The project includes repaving the road with hot asphalt and replacing aging infrastructure along the road.Caltrans will replace 66 drainage ditches, seven guardrails, 274 roadside signs and two overhead sign structures. Crews will also install new shoulder supports and asphalt embankments where needed.The contract was awarded to Teichert Construction Inc. In Sacramento. According to Caltrans, the improvements will benefit motorists, commercial vehicles and bicyclists traveling between Bear Valley and Markleeville, including those crossing Ebbetts Pass.
Traffic restrictions are expected
Drivers should prepare for traffic disruptions once construction begins. Work will occur mainly during weekdays, and crews are expected to work from 6 a.m. to 5 p.m.One-way traffic control will be used along parts of the highway, and there will also be occasional complete road closures for the safety of workers and motorists.The Raymond Meadow Creek Bridge will be completely closed during part of the project, Caltrans said.The agency added that the work schedule may change depending on traffic incidents, weather, equipment availability or other construction-related issues.