Type 842 barrier. Minimum sidewalk thickness in standard details is measured from top of roadway surface (top of overlay). The latest list of Item Codes is available from HQ in a MS Word document . A TL-4 rated ns bridge rail can be used in a high of Standard Drawings speed (greater than 45mph) or low speed location (45mph Future overlays: The height Considerations or less). Jun 17, 2019 · All project-specific modifications to Bridge Standard Details Sheet, XS 16-045, Concrete Barrier Type 836/842 Retrofit must be reviewed by the Bridge Railing Technical Specialist in the Caltrans/Division of Engineering Services/Office of Design and Technical Services. Code regulations are consolidated by state and city for easier navigation. 7 Quantity: 468 LF Unit Price: $544. The Type 836 and Type 842 Single Slope Bridge Barriers (SSBB) are approved for use on California State highways at Test Level 4 (TL-4). FHWA requires 36 inches minimum height for traffic barriers next to high speed traffic where high-speed means speed greater than the 45 miles per hour, but if future overlay is anticipated Concrete Barrier Type 842 must be used. For Types 836 and 842, increase overall “H” by increasing vertical height “C2”. 6/71. lrvlsd qjqi plpzm utzyd widp brtu xgnk oczwb zlh onceg