Skip to main content

The rogue G28-1 California State Highway Spades

In this short blog we look at the somewhat rare but not unheard-of rogue G28-1 California State Highway Spades.


Part 1; what is the G28-1 California State Highway Spade? 

The Caltrans Manual of Uniform Traffic Control Devices Sign Chart from 2014 ("Caltrans MUTCD") dictates the types of signs and highway shields permitted for traffic control use in California.  California is known for it's more ornate cut-out shields which are used for, US Routes, Interstate Highways, and State Routes.  The common shields which are typically found through California are:

US Route:  G26-2

Interstate:  G27-2

State Highway:  G28-2

The Caltrans MUTCD provides alternative shields for, US Routes, Interstate Highways, and State Routes.  These alternative shields are intended for guide sign usage but aren't explicitly limited to said function.  These alternative shields are:

US Route:  G26-1

Interstate:  G27-1

State Highway:  G28-1

The primary reassurance shields for; US Routes, Interstate Highways, and State Highways can be seen depicted below.


Part 2; the rogue G28-1 California State Highway Spades

While in theory the G26-1 US Route Shield and G27-1 Interstate Shield could possible see a non-guide sign reassurance shield use I personally haven't encountered any on the road  Conversely I have encountered numerous G28-1 State Highway Spades in use as reassurance shields.  I have also acquired several G28-1 California State Highway Spades in my signage collection. 

The cover to this blog is an unused G28-1 California State Route 14 ("CA 14") shield I have in my sign collection.  This CA 14 is tiny as it measures only 18x18 inches.

I also have a G28-1 style CA 135 shield which can be identified as intended for assurance use given it has two mounting holes.  This shield is an older variant which is comprised from reflective paint with vinyl numerals.  

In terms of field signage this G28-1 CA 227 shield can be found near Arroyo Grande.

This G28-1 CA 180 shield was found on Whites Bridge Avenue (former CA 180) west of downtown Fresno. 

This G28-1 CA 270 shield once served as the first westbound reassurance shield as Bodie Road transitions from State Park maintenance to Caltrans maintenance.  Unfortunately this shield was missing upon my last visit to Bodie State Historic Park.  

G28-1 shields can be found in use in Yosemite National Park on El Portal Road and the Big Oak Flat Road.  CA 140 is marked on El Portal Road whereas CA 120 is marked on the Big Oak Flat Road and Tioga Pass Road.  

Know of any other G28-1 State Highway Shields in use around California for reassurance purposes?  Know of any G26-1 US Route Shields or G27-1 Interstate Highway Shields in use for reassurance purposes?  If so, please feel free to share in the comments, we would love to hear from you.

Comments

Anonymous said…
As I understand it, the G28-1 signs in Yosemite National Park aren't really used for "reassurance", since the state highways shown on those signs don't officially exist within the park, but rather end at the park boundaries. This is reflected in the legislative definitions of those routes, and Caltrans' Postmile Query Tool.

Those signs within the park seem intended to help park visitors reach the state highways outside the park.

Oscar Voss, ovoss@pobox.com
Challenger Tom said…
With CA 120 and 140 in Yosemite that is an interesting topic. 120 definitely signed enough that one could infer that it is continuous through the Park on the Tioga Pass Road and Big Oak Flat Road. With 140 it’s original 1934 definition had it use El Portal Road and the Old Big Oak Flat Road through the Park to reach CA 120 on what is now Evergreen Road (the Old Tioga Road) just outside the Yosemite boundary. I’ve been trying to find photos for years which might show CSAA 140 shields in Yosemite on the Big Oak Flat Road, thus far to no avail.
Stevashe said…
I know of one location with some rogue G28-1 signs that was actually only posted this year, and it even has two since it happens to be on a concurrency! It's on CA 36/89 just east of the CA 89 turnoff for Lassen National Park and Morgan Summit, where a realignment project was just completed. Unfortunately I only seem to have managed to get a picture of the back of the sign assembly, but you can at least see it has the different shape of the G28-1 compared to the G28-2: https://www.flickr.com/photos/184498735@N04/50379707676/in/dateposted-public/
Randy said…
There's a couple G28-1 style CA-58 signs at the Mojave/CA City Blvd overpass and freeway entrance.

Popular posts from this blog

North Carolina Continues to Move Forward with Rail

2023 and the first half of 2024 have seen continued growth in North Carolina's passenger rail system.  From increased daily trains from Raleigh to Charlotte, federal funds for studying additional corridors, and receiving a historic grant to begin the construction of high-speed rail between Raleigh and Richmond, the last 18 months have been a flurry of activity at NCDOT's Rail Division.  And that's just the tip of the iceberg. As ridership and routes increase - the engine of North Carolina passenger rail trains will become a more common sight. (Adam Prince) Increased Passenger Train Service: On July 10, 2023, a fourth Piedmont round-trip rail service between Raleigh and Charlotte commenced.  The four Piedmont trains plus the daily Carolinian (to Washington, DC, and New York) bring the total of trains serving the two cities daily to five. The current daily Piedmont and Carolinian schedule between Charlotte and Raleigh (NCDOT) The result was over 641,000 passengers utilized pa

US Route 101 in Benbow, Garberville and Redway

The communities of Benbow, Garberville and Redway can all be found along US Route 101 within southern Humboldt County.  The former surface alignment of US Route 101 in Garberville and Redway once crossed the Garberville Bluffs along what is now Redwood Drive via a corridor constructed as part of the Redwood Highway during the 1910s.  US Route 101 through Benbow, Garberville and Redway was modernized by 1935.  US Route 101 would eventually be upgraded to freeway standards in Benbow, Garberville and Redway by extension of the Redwood Freeway during 1966-68.  As the cover photo the original grade of US Route 101 and the Redwood Highway can be seen at the Garberville Bluffs during 1934.  US Route 101 can be seen in the communities of Benbow, Garberville and Redway on the 1935 Division of Highways Map of Humboldt County .   The history of US Route 101 in Benbow, Garberville and Redway Benbow, Garberville and Redway lie on the banks of the South Fork Eel River of southern Humboldt County.  D

The Midway Palm and Pine of US Route 99

Along modern day California State Route 99 south of Avenue 11 just outside the City limits of Madera one can find the Midway Palm and Pine in the center median of the freeway.  The Midway Palm and Pine denotes the halfway point between the Mexican Border and Oregon State Line on what was US Route 99.  The Midway Palm is intended to represent Southern California whereas the Midway Pine is intended to represent Northern California.  Pictured above the Midway Palm and Pine can be seen from the northbound lanes of the California State Route 99 Freeway.   This blog is part of the larger Gribblenation US Route 99 Page.  For more information pertaining to the other various segments of US Route 99 and it's three-digit child routes check out the link the below. Gribblenation US Route 99 Page The history of the Midway Palm and Pine The true timeframe for when the Midway Palm and Pine (originally a Deadora Cedar Tree) were planted is unknown.  In fact, the origin of the Midway Palm and Pine w