Skip to: Content | Footer | Accessibility

Right Column

SR-58 Kramer Junction

SR-58 is a major east-west transportation corridor with a high percentage of truck traffic transporting goods in and out of the state. The project scope will include widening and realigning a 13.3-mile segment of SR-58 centered on Kramer Junction, where SR-58 intersects with US-395, in San Bernardino County. This section of SR-58 is currently a non-standard two-lane highway between a four-lane freeway to the west and a four-lane expressway to the east, and the project would close this gap. This 2-lane segment includes an at-grade signalized intersection at SR-58/US-395 (Kramer Junction), an at-grade crossing of the Burlington Northern Santa Fe (BNSF) railroad west of that intersection, and numerous uncontrolled at-grade driveway and street access points. 

 

Project Purpose and Need
The purpose of the proposed project is to: improve east‐west mobility and reduce congestion and travel time; reduce potential traffic conflicts; and maintain an uninterrupted and consistent facility between economic and community centers. Identified needs are as follows:

  • Congestion Relief: The two‐lane segment of SR‐58 within the project limits operates at a Level of Service (LOS) D in the AM peak hour and LOS E in the PM peak hour. Projections indicate that, without the project, in 2039, LOS will deteriorate to LOS E during the AM peak hour and LOS F during the PM peak hour.

  • Accommodation of Trucks: The current pavement was not designed for use by large and oversized trucks.

  • Rail/Vehicle Grade Separation: Vehicles are required to stop and wait for trains crossing SR‐58. Separation of rail and vehicular traffic would eliminate these delays.

     

    Alternatives Under Consideration
    Four build alternatives (Alternatives 1, 1A, 2, and 3) and a no-build alternative (Alternative 4) are under consideration, but a preferred alternative has not been identified. Each of the build alternatives would realign and widen a 13.3‐mile segment of State Route 58 (SR‐58) from 0.4 miles west of the Kern County/San Bernardino County line to a point that is approximately 7.5 miles east of U.S. Route 395 (US‐395) from a two‐lane conventional highway to a four‐lane expressway; and construct a railroad grade separation and an interchange at the SR‐58/US‐395 Junction.

    Typical cross sections of the proposed SR‐58 facility under each of the build alternatives would consist of an approximately 400‐foot right‐of‐way, 100‐foot median, 10‐foot outside shoulders, and 5‐ foot inside shoulders. The 0.3‐mile segment of US‐395 adjacent to SR‐58 would be widened from two lanes to four lanes plus a left‐turn lane. Lanes would be 12 feet wide with 8‐foot outside shoulders on a proposed 100‐foot right‐of‐way. Dual crossing structures (one for eastbound vehicles and the other for westbound vehicles) would grade‐separate mainline SR‐58 traffic from US‐395 and would be 151 feet in length and have a total height of 30 feet. The interchange ramps from SR‐58 would have a single merge/diverge lane that transitions to two 12‐foot lanes at the connection to US‐395. Stop signs would be installed at the termini of off‐ramps. An additional set of dual crossing structures would grade‐separate mainline SR‐58 traffic from the BNSF railroad line and would have a maximum length of 611 feet and a height of 21.5 feet.

    Unique features of the alternatives under consideration are as follows:

    Alternative 1 would be located to the north of the existing SR‐58 and would involve the construction and operation of four diamond ramps at US‐395. TheSR‐58 crossing structures over the BNSF railroad line would be located 2.5 miles to the east of Kramer Junction. Implementation of Alternative 1 would meet the project's purpose and need.

    Alternative 1A would be located to the north of the existing SR‐58 and would involve the construction and operation of a spread diamond intersection at US‐395. The SR‐58 crossing structures over the BNSF railroad line would be located 2.5 miles tothe east of Kramer Junction. Implementation of Alternative 1A would meet the project's purpose and need.

    Alternative 2 would be located adjacent to the existing SR‐58 and would involve the construction and operation of four diamond ramps at US‐395. The SR‐58 crossing structures over the BNSF railroad line would be located 3.9 miles to the west of Kramer Junction. Implementation of Alternative 2 would meet the project's purpose and need.

    Alternative 3 would be located to the north of the existing SR‐58 and would involve the construction and operation of four diamond ramps at US‐395. The SR‐58 crossing structures over the BNSF railroad line would be located 2.6 miles to the west of Kramer Junction. Implementation of Alternative 3 would meet the project's purpose and need.

    Alternative 4 would not involve any changes to the existing SR-58 facility and would not meet the project’s purpose and need.

    For more information on the proposed project and its impacts, please see the Draft Environmental Impact Report/Environmental Impact Statement: (Click Here) for Draft Environmental Impact Report/Environmental Impact Statement (DEIR/EIS)