For 24-hour Road Conditions: quickmap.dot.ca.gov/ Serving the counties of Del Norte, Humboldt, Lake, and Mendocino.
Joined January 2011
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TRAFFIC ALERT: Delays expected on US199 near Idlewild in Del Norte County. One-way traffic control is in effect after a semi carrying hot asphalt binder overturned. Some material entered the Smith River. Crews are on scene. Check quickmap.dot.ca.gov before traveling.
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Travelers on Route 36 west of Grizzly Creek Redwoods State Park in Humboldt County should expect up to 1-hour holds from 9am and 5pm this week while excavators move material down the slope. Traffic will be released at the top of each hour.
Updates: quickmap.dot.ca.gov.
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Albion Community — We Want Your Input!
Caltrans is seeking feedback on proposed improvements to the Albion River Bridge focused on:
✔️ Passive recreation and viewing opportunities
✔️ Pedestrian safety
✔️ Public access across the bridge
Take the survey: albionriverbridgeproject.com…
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FINAL UPDATE 9:45 a.m.: Route 254/Avenue of the Giants is OPEN from Barkdull Road to Jordan Road near Pepperwood in Humboldt County.
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New flashing yellow arrow signals go live Thursday (5/28 after 9am) at the G & H intersections on Route 255/Samoa Blvd in Arcata.
Green arrow=protected left turn
Flashing yellow arrow=turn left only after yielding to traffic, bikes & pedestrians.
Please slow down & use caution.
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Caltrans recently cleared 15 cubic yards of debris and litter from an encampment along U.S. 101 near Ukiah in Mendocino County. This reflects ongoing efforts to enhance safety and maintain clean, accessible state highways across California.
@CaltransHQ
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Caltrans District 1 is seeking public input on the CAIP for the U.S. 101 Eureka-Arcata Corridor, a long-term plan to address sea level rise, flooding and coastal erosion.
Review the plan: NorthCoastClimateAction.org/…
Comment by 6/30: NCCA@dot.ca.gov
#HumboldtCounty #US101 @CaltransHQ
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Caltrans District 1 retweeted
May 1
🌸🚴Let’s spring into #MayIsBikeMonth! Most trips are under five miles, which makes biking a fun way to cut greenhouse gases and keep California blooming. Stay tuned for safety PSA videos throughout this month to help you pedal smart & safely.
@mayisbikemonth @sacbike @50Corridor
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Hey, Del Norte! Bring your branches, limbs, and other woody debris to the Del Norte Fairgrounds this weekend (Saturday 5/2 & Sunday 5/3) from 9am-3pm and help reduce local fire risk. Every pile cleared makes a real difference for our community.
#DefensibleSpace @CALFIRE_HUU
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Thank you to everyone who joined us at Tuesday’s Fort Bragg ADA Project open house at Town Hall. The event provided a great opportunity for staff to connect with community members and business owners by answering their questions.
For more info, visit dot.ca.gov/caltrans-near-me/….
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Travelers using Fernbridge on Route 211 in Humboldt County should plan for nighttime delays later this week.
From 4pm Thursday (4/30) to 6am Friday (5/1) expect 15-min delays while crews install changeable message sign structures as part of our seismic gates project.
#Fernbridge
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Caltrans District 1 retweeted
Apr 22
What’s one small action you can take today to help protect our planet? 🌍 “Our Power, Our Planet,” reminds us change starts with everyday choices. Pick up after pets, maintain your car, and dispose of trash properly. Learn more at CleanWaterCA.com #CleanWaterCA
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Safety Sam and our @CaltransDist1 Clearlake Oaks Maintenance staff attended Career Day at Lower Lake Elementary School on Friday. The event was a great opportunity to meet with students and talk about the work we do to keep State Highways safe.
#lakecounty @CaltransHQ
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Caltrans invites you to attend an open house for the Fort Bragg ADA Project on Tuesday, April 28, from 5 to 7 p.m. at Fort Bragg Town Hall. Staff will be available to address questions from both the public and business owners. For more info, visit dot.ca.gov/caltrans-near-me/….
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On Thursday, the Anderson Valley Unity Club provided lunch and homemade goodies to the Caltrans District 1 Boonville Maintenance crew as a gesture of appreciation for their efforts to keep State Highways safe in Mendocino County.
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We want to thank Anderson Valley Junior-Senior High School for inviting us to their Career Fair in Boonville on Thursday. The event was a great opportunity for Caltrans District 1 staff to meet with high school students and their parents.
#boonville #mendocinocounty #CareerFair
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Construction is coming to US199 & Rte 197 near Crescent City this summer. Plan ahead for traffic impacts in Del Norte County.
Expect 4-hr weekday closures (Tues–Thurs, 10AM–2PM). Updates will be shared regularly. Check quickmap.dot.ca.gov/ before you go. @CaltransHQ @ChpCity
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The 199/197 Safe STAA Access Project will upgrade highways to national truck standards and improve safety for all travelers. Work includes bridge construction, paving, drainage guardrails and slope stabilization.
More details/closure updates coming soon. Stay tuned & plan ahead!
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Big recognition for Caltrans District 1! The Calpella Two-Bridges Replacement Project earned an Excellence in Transportation Award (Highway Rural).
The new Route 20 bridge in Redwood Valley enhances safety, improves traffic flow and kept travelers moving during construction.
Apr 3
🏆Announcing the winners of the 2025 Caltrans Excellence in Transportation (EIT) Awards!
The EIT awards recognize excellence in design, construction, traffic ops, maintenance, planning & improvements throughout CA.
Learn more about the winning projects: dot.ca.gov/programs/public-a…
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Huge thanks to Ghirardelli Associates & Myers and Sons Construction.
@CaltransHQ @MyersandSons #MendocinoCounty
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