Noyo River Bridge

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Noyo Bridge
Photograph of the sixth and current Noyo River Bridge, built in 2005
The sixth, and current, Noyo Bridge
Coordinates39°25′38″N 123°48′24″W / 39.4273°N 123.8068°W / 39.4273; -123.8068 (Noyo Bridge)Coordinates: 39°25′38″N 123°48′24″W / 39.4273°N 123.8068°W / 39.4273; -123.8068 (Noyo Bridge)
Carries SR 1, motor vehicles, pedestrians and bicycles
CrossesNoyo River
LocaleFort Bragg, Mendocino County, California, United States
Official nameNoyo River Bridge
OwnerCalifornia Department of Transportation
Maintained byCalTrans District 1
ID number10 0298[a]
Preceded byGeorgia-Pacific Haul Road Bridge
Characteristics
DesignBox girder (Beam)[a]
MaterialPrestressed concrete[a]
Total length875 feet (267 m)[a]
Width86.6 feet (26.4 m)[a]
Height110 feet (34 m)
Longest span327.1 feet (99.7 m)[a]
No. of spans3
Piers in water2
Load limit5.96 short tons (5.4 t) (HS20+Mod)
Clearance below91.9 feet (28.0 m)[a]
No. of lanes4 (11.8 ft (3.6 m) wide)[b]
History
Constructed byMCM Construction[1]
Construction startMay 2002 (2002-05)
Construction endAugust 2005 (2005-08)[c]
Construction costUS$31.1 million
OpenedAugust 5, 2005 (2005-08-05)
InauguratedAugust 12, 2005 (2005-08-12)
ReplacesNoyo River Bridge (5th, 1948-2005)
Statistics
Daily traffic23,950 (3% trucks)[a]
Location
Location on California State Route 1
(Shoreline Highway/Main Street)
References
  1. ^ a b c d e f g h National Bridge Inventory
  2. ^ CA Coastal Comm. Revised Findings
  3. ^ Scenic Bridge Railings

The Noyo River Bridge is a box girder bridge constructed of prestressed concrete crossing the Noyo River in Fort Bragg, California.[2] Owned and maintained by the California Department of Transportation, it carries motor vehicle, bicycle and pedestrian traffic over the waterway as part of California State Route 1, which is also signed as Main Street within the Fort Bragg city limits. Construction on the current bridge began in 2002 and was completed in August 2005,[3] now the sixth such structure to span the river near its mouth and bear the name Noyo River Bridge, replacing a two-lane steel deck truss bridge built in 1948.[4]

Despite being listed as only four lanes, the inclusion of a full lane-width median, a bicycle path for both directions and the use of the ST-10 scenic railings resulted in a bridge deck that measures 86.6 feet (26.4 m) wide. In comparison, the deck width of the Golden Gate Bridge is only 82 feet (25 m).[5]

Predecessors[]

The current bridge is the sixth crossing to have been built at the mouth of the Noyo River. Only the two most recent iterations have been high-span designs, carrying traffic above Noyo Cove[6] at the same elevation as the coastal bluffs on which the majority of the city is located. The distance between the two sides at the cove is over 800 feet, though the river below is less than 100 feet wide. The first four bridges were instead sited 1,000 feet (300 m) east or approximately 1⁄3 mile upriver at one of the few shore-level spaces along the river's length that would permit footings on the riverbanks themselves as it abruptly turns approximately 130° and the navigation channel narrows to less than 30 feet. Prior to the first bridge being built in 1861, river crossings were made on a cable ferry which also operated at the same narrow point in the channel.[7]

Railings[]

Rendering of CalTrans ST-10 railing on Noyo River Bridge

Noyo River Bridge served as the impetus for CalTrans approving an entirely new design specification for bridge railings, one that preserved the sightlines for motorists and passengers to a far greater degree than any approved for use in the state for over 50 years.[8] The initial design proposal had called for use of the standard freeway overpass configuration that had been in use since the 60s and employed solid concrete barriers on each side measuring 42 inches (110 cm) high that completely obstructed the view of the ocean and harbor for occupants in standard passenger cars.[9] This prompted a local outcry and attention from the California Coastal Commission who worked with CalTrans for over two years on alternatives that preserved sightlines without negatively impacting safety tests, ultimately resulting in an entirely new "scenic bridge" railing design termed ST-10 being approved for use state-wide and installed on the new Noyo Bridge.

In popular culture[]

The 5th bridge can be seen in the movies Johnny Belinda, Overboard, The Russians Are Coming, the Russians Are Coming, and Dying Young.[10] It is also shown in multiple episodes of Murder, She Wrote.[11]

References[]

  1. ^ "About MCM Construction". MCM Construction. Archived from the original on November 29, 2020. Retrieved November 25, 2021.
  2. ^ "STATE ROUTE 001 over NOYO RIVER & HARBOR DR, Mendocino County, California". National Bridge Inventory. Archived from the original on August 20, 2019. Retrieved November 25, 2021.
  3. ^ Taylor, Vince. "Noyo History". Scenic Bridge Railings. Archived from the original on July 4, 2008. Retrieved November 25, 2021.
  4. ^ Phillips, Tony (April 16, 2016). "Pictorial History of the Six Bridges that have crossed the Noyo River, Fort Bragg, CA". Hobo Laments. Archived from the original on August 20, 2019. Retrieved November 25, 2021.
  5. ^ Reeve, Scott. "Pedestrian Payload Adds Up: Just ask Golden Gate Bridge Officials". Creative Composites Group. Archived from the original on November 25, 2021. Retrieved November 25, 2021.
  6. ^ Pomeroy, Caroline; Thomson, Cynthia J.; Stevens, Melissa M. (August 2010). "California's North Coast Fishing Communities Historical Perspective and Recent Trends - Fort Bragg/Noyo Harbor Fishing Community Profile" (PDF). California Sea Grant - University of California, Santa Cruz. p. 17. Archived (PDF) from the original on August 20, 2019. Retrieved November 25, 2021. Major improvements to the Highway 1 bridge were completed in 1948, when a high-span bridge over Noyo Cove replaced the upriver road crossing.
  7. ^ Stebbins, Beth (1986). The Noyo (PDF). Mendocino, California: Bear and Stebbins. pp. iv, 55. Archived (PDF) from the original on December 20, 2015. Retrieved November 25, 2021.
  8. ^ Taylor, Vince (Winter 2006). "The View from the Noyo Bridge" (PDF). Coast and Ocean. 22 (3). The California Coastal Conservancy. pp. 28–35. Archived (PDF) from the original on May 9, 2009. Retrieved November 25, 2021.
  9. ^ Taylor, Vince (December 1, 1999). "The Cal-transmogrification of Scenic Bridge Railings" (PDF). Scenic Bridge Railings. Dharma Cloud Foundation. Archived (PDF) from the original on February 27, 2012. Retrieved November 25, 2021.
  10. ^ Levene, Bruce (July 1998). Mendocino & the Movies: Hollywood and Television Motion Pictures Filmed on the Mendocino Coast. Mendocino, California: Pacific Transcriptions. ISBN 9780933391147. OCLC 56966584. Retrieved 2021-11-25.
  11. ^ Stevens, Janice; Hunter, Pat (2012). An artist and a Writer Travel Highway 1 North. Fresno, California: Craven Street Books. ISBN 978-1-61035-053-2. OCLC 761851538. Retrieved 2021-11-25.

External links[]

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