Traffic Changes on South End of Willits Bypass Project; Expect Major Delays on US Highway 101




On Thursday, October 9, traffic on US Highway 101 on the south end of the Willits Bypass Project will be diverted to a long-term detour.  In order to tie the detour into the existing highway, one-way traffic control with a pilot car will be in effect from 4AM 2AM to 9PM on Thursday only.  Motorists should anticipate major traffic delays which could reach one hour or more during peak traffic times, with southbound traffic on US Highway 101 backing up into the northern end of Willits.  Continue reading

Latest Willits Bypass Update to the Willits City Council

Caltrans staff provided a written update to the Willits City Council on September 24 on the status of the Willits Bypass.  The complete text is provided below.



At the south interchange looking north across Haehl Creek.

The following is a summary of the construction activities that have been completed up to September 18, 2014
(Refer to Attachment No. 1 for Project Map).

  • Contractor has completed approximately 48% of the work.

Southern Segment (Beginning of Project to Center Valley Road) – STA”A”96+00 to 149+00 (3.3 miles):

  • Rock blanket on excavated slopes (U1 slope) completed.
  • Construction of crossover detour for northbound freeway traffic to U1 line continues.
  • Haehl Creek realignment and fish passage improvement work is started and will be completed by the end of September 2014.
  • 101/20 Separation and Haehl Creek Bridges foundations are complete, abutments are complete 101/20 superstructures anticipate November 2014 completion. Due to short work window and temporary suspension of Corps permit in June 2014, Haehl Cr. Structures will suspend then resume next June 2015 and be complete in September 2015.
  • Northbound onramp E20/N101 Connector bridge is complete, except for concrete barrier rails.
  • North Haehl Creek bridge is also complete, work on approaches will begin this week.
  • Pond relocation at Rutledge property is complete.
  • Baechtel Creek retaining wall is complete.

Floodway Viaduct – STA “A” 149+00 to 167+50 (1.2 miles):

  • Frame 1 – 5 superstructure work is ongoing, 3 large concrete pours have occurred. 7 more plus hinge closure pours are needed before falsework can be removed. Completion in 2014 will be
    dependent on weather.
  • In Frame 6 – 8 (Bents 24 – 34) footing and column construction will be completed by mid October. Construction of the superstructure will resume in the spring 2015.
  • City of Willits and Caltrans continue to coordinate work near WWTP [waste water treatment plant] facilities.

North Segment (Viaduct to End of Project – STA “A” 167+50 to 191+10 (1.5 miles):

  • Placing erosion control at RR bridge abutments.
  • Utility relocation ongoing.
  • Construction of bridge fills from MFP borrow site continuing.

Caltrans Provides Willits Bypass Project Update to Willits City Council

IMG_9276On Wednesday, July 23, Caltrans Project Manager Mauricio Serrano and Senior Resident Engineer Geoffrey Wright provided the Willits City Council with a Willits Bypass Project update.  The update included the following:

The realignment of Haehl Creek and fish passage improvement work has begun and is anticipated to be completed by mid-September. Continue reading

Corps Lifts Permit Suspension on Willits Bypass Project

CT_logoPress Release:

Today’s Date:          July 10, 2014
District:                     1 – Eureka
Contact:                    Phil Frisbie, Jr.
Phone:                      (707) 441-4678



EUREKA – After Caltrans committed to accelerate work on the extensive mitigation for the bypass project and develop a plan to add additional mitigation to compensate for delays in beginning the mitigation work, today the US Army Corps of Engineers lifted the permit suspension for the Willits Bypass Project.

The Willits Bypass Project will relieve congestion, reduce delays, and improve safety for both traffic and pedestrians along U.S. Highway 101 through Willits in Mendocino County. This $210 million project, now under construction, is primarily funded ($136 million) by Proposition 1B, a 2006 voter-approved transportation bond.

For the latest information about the Willits Bypass Project, please visit


Caltrans Meets With Corps and Sends Summary Letter; Corps To Rule Today On Suspension

IMG_9219On July 9, Caltrans meet with the US Army Corps of Engineers to discuss their July 8 letter modifying our permit and outlining three conditions Caltrans must complete before the suspension will be lifted.  Caltrans explained how the first two conditions will be completed by August 2, 2014, and how the third could take many months, and would increase the project costs and impacts to the environment.  Caltrans outlined a plan to accelerate work on the mitigation properties, and to update the Mitigation and Monitoring Plan to incorporate additional mitigation for temporal  losses. Continue reading

Corps Sends New Letter; Willits Bypass Work Suspension Delayed One Day

Aerial photo of Little Lake Valley from Google MapsCaltrans received a letter from the US Army Corps of Engineers outlining modifications to our permit to build the Willits Bypass Project.   The letter maintains the conditional suspension of our permit, clarifies work that may and may not be performed without further authorization, and outlines three things Caltrans must complete before the suspension will be lifted.  Caltrans will be meeting with the Corps July 9 to discuss this latest letter. Continue reading

Willits Bypass Project to go into suspension

IMG_9143On June 20, 2014, the US Army Corps of Engineers suspended Caltrans’ permit to construct the Willits Bypass Project.  The costs to keep contractor crews on standby and other delay costs have added an estimated $800,000 to the Willits Bypass Project from June 20 through July 7, and are accumulating at about $100,000 per day.  Due to these costs, Caltrans has notified our contractors that we intend to suspend work effective July 8 at the end of the day’s work until the Corps permit suspension is lifted.  This was not an easy decision, but with the mounting costs and uncertainty from the Corps of when they might lift the suspension, Caltrans had to reduce the escalating costs to taxpayers. Continue reading

Caltrans Responds to Corps Conditional Suspension of Bypass Permit

willits_childrenOn June 20, just one week after State agencies approved the Willits Bypass Mitigation and Management Proposal,  The U S Army Corps of Engineers notified Caltrans that their permit was conditionally suspended, and that all ground disturbing work within wetlands and stream beds was to halt.  Caltrans staff were disappointed and surprised by the Corps decision to suspend the permit.  Caltrans meet with the Corps on June 24 to discuss their suspension letter to better understand the Corps needs and clarify points in the letter that Caltrans believed to have already been completed.  As a result of that meeting, Caltrans drafted and sent the Corps a reply on June 27.  The entire text of the letter is provided below, and a scanned/signed PDF version is available to download.

Caltrans continues to work with the Corps to resolve these issues and get the suspension lifted as quickly as possible.  Each day the cost to taxpayers goes up due to delays in work, and if there is no resolve soon the project could be delayed a full season which would cost many millions of dollars. Continue reading

Breaking News: Final Mitigation Plan Approved; Additional Mitigation Already Sufficient For Project Delays

willits_valleyToday, both the California Department of Fish and Wildlife and North Coast Regional Water Quality Control Board (Regional Water Board) approved the Final Mitigation and Monitoring Proposal (MMP) for the Willits Bypass Project.  This MMP is the result of years of negotiations between Caltrans and these two agencies, and its approval allows Caltrans to continue forward with the construction of the bypass and mitigation projects.

The Regional Water Board also stated that additional mitigation measures already incorporated into the mitigation project by Caltrans, along with mitigation recently added to the MMP, were sufficient  for  the delayed start of the project.  Continue reading

Local Road Closure For Willits Bypass

Beginning Wednesday, May 14, at 8PM and continuing through Thursday, May 15, at 5AM, East Commercial Street in Willits (also known as Hearst-Willits Road) will be closed to through  traffic between South Lenore Avenue and Bray Road.  This closure is needed in order to place metal beams above the road for the construction of the viaduct section of the Willits Bypass Project.  Residents should seek an alternate route.commercial_closure