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.

Interstate 40's Tumultuous Ride Through the Pigeon River Gorge

In the nearly 60 years Interstate 40 has been open to traffic through the Pigeon River Gorge in the mountains of Western North Carolina, it has been troubled by frequent rockslides and damaging flooding, which has seen the over 30-mile stretch through North Carolina and Tennessee closed for months at a time. Most recently, excessive rainfall from Hurricane Helene in September 2024 saw sections of Interstate 40 wash away into a raging Pigeon River. While the physical troubles of Interstate 40 are well known, how I-40 came to be through the area is a tale of its own. Interstate 40 West through Haywood County near mile marker 10. I-40's route through the Pigeon River Gorge dates to local political squabbles in the 1940s and a state highway law written in 1921. A small note appeared in the July 28, 1945, Asheville Times. It read that the North Carolina State Highway Commission had authorized a feasibility study of a "...water-level road down [the] Pigeon River to the Tennessee l

Ghost Town Tuesday; Mannfield, FL and the stairway to Hell

Back in 2015 I went searching the Lecanto Sand Hills for the original Citrus County Seat known as Mannfield. Unlike Centrailia in Hernando County and Fivay in Pasco County I did find something worth seeing. Mannfield is located in the Lecanto Sand Hill section of Withlacoochee State Forest somewhat east of the intersection of Citrus County Route 491 and Mansfield Road. Mannfield was named after Austin Mann and founded in Hernando County in 1884 before Citrus County Split away. In 1887 Citrus County was split from northern Hernando County while Pasco County was spun off to the south. Mannfield was selected as the new Citrus County seat due to it being near the county geographic center. Reportedly Mannfield had as many as 250 people when it was the County Seat. The town included various businesses one might include at the time, even a sawmill which was common for the area. In 1891 Citrus County voted to move it's seat to Inverness which set the stage for the decline of M

The National Road - Pennsylvania - Great Crossings Bridge and Somerfield

West of Addison, US 40 crosses the Youghiogheny River at what once was the town of Somerfield. When crossing the current modern two lane bridge, you many not realize that it is actually the third to cross the Yough at this site. The first - a stone arch bridge - was known as the Great Crossings Bridge. Built in 1818, this three arch bridge was part of the original National Road. The name Great Crossings comes from the men who forded the Youghiogheny here - George Washington and George Braddock. (1) If you cross the bridge at the right time, this historic bridge and what was once the town of Somerfield will appear out from underneath this massive man-made lake. Historical Postcard showing the 'Big Crossings' bridge and Somerfield. Image submitted by Vince Ferrari. The Great Crossings Bridge was located in the town of Somerfield. Somerfield, originally named Smythfield until 1827, would develop as a result of the National Road. (1) Somerfield would go through va