Monitoring Caltrans in Northern California is pretty easy! For now everybody seems to be using the lowband VHF system in Districts 1 and 2. However the new statewide 800Mhz system (non-trunked) is in place and should start to be implemented. Be sure to have both Low Band and 800 freqs plugged into your Caltrans bank. In the Bay Area, they have trunked systems but I will not post details here - I don't cover that area.
Traffic you will here up here is great and very worthy in the winter!!! Roadblocks and winter travelling conditions are plentiful info on the freqs below. Monitor them when you travel or have family travelling or when you just wanna know if it's snowing on some mountain pk.
District #2 covers all the counties of Shasta, Tehama, Trinity, Lassen, Plumas, Modoc and Siskiyou. It is dispatched out of the Redding office. CHP Redding does normal dispatch and there is a base station at the Caltrans shop in Redding too. District #1 covers all the counties of Humboldt,Del Norte,Mendocino,Lake,and part of Trinity; also dispatched out of Eureka CHP.
To use the info below, the 800Mhz system uses Letters for designators and the lowband uses numbers for channel designators. I have labeled each channel. The 2nd column has the actual channel usage for each district and the proposed 800 system channels as well. The 3rd and 4th colum are unit designators and assignments.
| Caltrans Frequencies | Caltrans Assignments | ||
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Caltrans 800Mhz Ch A 856.9875 Ch B 860.7375 Ch C 857.7375 Ch D 8567375 Ch E 860.9875 Ch F 859.9875 Ch G 859.7375 Ch H 858.7375 Ch I 858.9875 Ch J 857.9875 Ch K 866.0375 Ch L 867.0375 Ch M 868.0375 Ch N 856.7625 Ch O 857.7625 Ch P 858.7625 Ch Q 859.7625 Ch R 860.7625 Ch U 857.2625 Low Band VHF System Ch 1 White 47.020 Ch 2 Black 47.040 Ch 3 Brown 47.060 Ch 4 Orange 47.080 Ch 5 Yellow 47.100 Ch 6 Blue 47.120 Ch 7 Gray 47.160 Ch 8 Purple 47.180 Ch 9 Red 47.200 Ch 10 Green 47.240 |
District #1 Operations - 9 Construction - 4 Mendocino - B Hwy 101/299 - C Eureka - N Crescent City - O Orleans - P Lakeport - R Del Norte - I District #2 Operations - 5 Operations Yreka - 1 Construction - 4 Quincy - B, C, E, H Mineral - B Alturas - E Burney - J Redding - J, P Red Bluff - H, I Susanville - J Platina - P Weaverville - Q Yreka - N Happy Camp - J |
DISTRICT #1 Crescent City Units-141 Eureka Units-142 Willow Creek Units-143 Orleans Units-144 Idlewild Units-145 Bridgeville Units-162 Fortuna Units-163 Garberville Units-164 Leggett Units-165 Willits Units-167 Fort Bragg Units-182 Boonville Units-183 Manchester Units-184 Ukiah Units-187 Lakeport units-188 Clearlake Oaks Unit-189 Special Crews Electrical-152 Signs&Paint-153 Bridge-154 Tree Crew-157 Special Crews So.-158 |
DISTRICT #2 Yreka Area Grass Lake-211 Yreka-212 Yreka Special Crews-214 Seiad Valley-215 Newell-217 Valley Area Redding East-231 Redding North-232 Red Bluff-234 Gibson-236 Mt.Shasta-237 Burney-238 Weaverville Area Trinity Center-241 Weaverville-242 Hayfork-243 Platina-244 Susanville Area Susanville West-261 Susanville East-262 Hat Creek-264 Alturas-267 Adin-268 Quincy Area Beckwourth-271 Quincy-272 Pulga-273 Chester-274 Mineral-275 Special Crews Paint Crew-291 Bridge/Sweepers-292 Pavement Marking-293 Electrical-294 Red Bluff Landscape-295 Redding Landscape-296 |