What are Caltrans special provisions?
Standard Special Provisions (SSPs) provide standardized language used with construction contracts to amend, supplement, and incorporate the Caltrans Standard Specifications. SSPs are identified according to their Standard Specifications section.
What does SDS stand for in Caltrans?
A safety stand-down is implemented as part of improving safety communication under the Caltrans Injury and Illness Prevention Program (IIPP).
What is Caltrans minor concrete?
What is This Treatment? Minor Concrete is a standard concrete mix, spread and compacted as specified in Caltrans Standard Specifications Section 90-10. Structural section will vary depending on site specific requirements.
Which manual obtains key safety information for Caltrans?
The COSP is part of Caltrans’ IIPP, which also includes the Caltrans Safety and Health Manual (Safety Manual), portions of the Construction Manual and Standard Specifications, and contract- specific standard special provisions dealing with safety.
What are three types of operations that Caltrans performs?
- Flagging Operations.
- 8.20.1 Handling Emergencies Within the Work Zone.
- Shoulder Closures.
- Moving Lane Operations/Closures.
What is the difference between Type 1 and Type 2 FAS?
Type I FAS are large multifunctional enzymes capable of catalysing all of the reactions of fatty acid biosynthesis (Smith, 1994). In contrast, for the type II FAS, each reaction is catalysed by a discrete enzyme (Magnuson et al. 1993).
What is a Class 2 concrete finish?
Class 2 is that which will be specified for most good quality architectural precast concrete. A Class 2 finish is intended for external and internal façades that can be viewed in detail. A Class 2 finish is a high quality finish requiring very substantial input by the designer and the precaster.
What is class B concrete used for?
Class B – Footings, pedestals, massive pier shafts, pipe bedding, and gravity walls, unreinforced or with only a small amount of reinforcement.
What is the minimum requirement when working a short duration operation in a gore area Caltrans?
Short Duration Operation In general it can be defined as any activity that can be performed in 20 minutes or less during light traffic volumes, without interfering with traffic or placing the employee in jeopardy.
What is required for a shadow vehicle Caltrans?
A shadow vehicle shall: (1) Have a TMCC; (2) Carry a FAS operating in the arrow mode while occupying a lane on multilane roads; (3) On two lane roads, carry either a FAS operating in the caution mode or a flashing amber light; (4) Be equipped with headrests; (5) Be equipped with seat belt and shoulder harness; and (6) …
What is a Class 3 finish?
A Class 3 finish will give a good visual quality when the project is viewed as a whole. Classes 4 and 5 are for situations where the visual quality is not important and apply to surfaces which are concealed from general view or are never seen.
What is a F4 concrete finish?
Finish F4. –This finish is required for formed concrete surfaces where accurate alignment and evenness of surface are essential for prevention of destructive effects of water action. Such surfaces include portions of outlets, draft tubes, and spillway tunnels of high dams.
What is Class S concrete?
Class S is used for the structural components and does not contain air entrainment while Class S (AE) is mainly used for bridge decks and contains air entrainment. AHTD requires the same minimum cementitious material content for both classes of concrete.
How do you determine the maximum spacing for channelizing devices?
The spacing of channelizing devices should not exceed a distance in meters (feet) equal to 0.2 times the speed limit in km/h (1.0 times the speed limit in mph) when used for taper channelization, and a distance in meters (feet) equal to 0.4 times the speed limit in km/h (2.0 times the speed limit in mph) when used for …
What is the maximum time for an operation to be defined as short duration?
Short-term stationary is daytime work that occupies a location for more than 1 hour within a single daylight period. Short duration is work that occupies a location up to 1 hour. Mobile is work that moves intermittently or continuously.
What are three types of protective vehicles that Caltrans uses?
There are two types of protective vehicles: Barrier Vehicle: A vehicle, usually unoccupied, which is parked between the oncoming traffic and a stationary work site. Shadow Vehicle: A vehicle with an attenuator which follows a survey operation moving in the direction of traffic.