Geography | |
---|---|
Location | Northern California |
Coordinates | 38°03′55″N121°28′48″W / 38.06528°N 121.48000°W [1] |
Adjacent to | Sacramento–San Joaquin River Delta |
Highest elevation | −10 ft (-3 m) [1] |
Administration | |
United States | |
State | California |
County | San Joaquin |
The Empire Tract is an island in the Sacramento–San Joaquin River Delta [2] in San Joaquin County, California, United States. It has been used for agriculture since the 1800s; in the early 20th century it was used to plant potatoes, and United States president Herbert Hoover operated a beet farm there. In the 1960s, natural gas deposits were discovered beneath the island. In 1936, it was connected to the mainland by the Eight Mile Road Bridge, across King Island. As with many islands in the Delta, the Empire Tract has experienced considerable subsidence, and is well below sea level.
It is part of San Joaquin County, California, and managed by Reclamation District 2029. [3] [4] Its coordinates are 38°03′55″N121°28′48″W / 38.06528°N 121.48000°W [1] , and the United States Geological Survey measured its elevation as −10 ft (−3.0 m) in 1981. [1] To the north is Terminous Tract (across White Slough), and to the northwest is Bouldin Island (across Little Potato Slough). [5] To its west is Venice Island (across Little Connection Slough). [5] To its southwest are Little Venice, Ward, Tinsley, and Fern Islands (across the Ward Cut, part of the Stockton Deepwater Shipping Channel). [5] To its southeast is the Rindge Tract, separated by Connection Slough, [5] and to its east is King Island, separated by the approximately 400 ft (120 m) Honker Cut. [6] The only road access to Empire Tract is the Eight Mile Road Bridge (29C-219), a two-lane bridge built in 1936, connecting to it from King Island. [7] Ferry service runs between Empire Tract and Venice Island. [8] [9]
In December 1912, Lee A. Philips, a capitalist of Stockton and Los Angeles, purchased several islands in the California Delta, including the Empire Tract, [10] which began to be planted in that year by the Empire Navigation Company. [11] In 1912, 1,500 acres (610 ha) of barley had been planted on the Empire Tract. [11] By 1913, the company planned to plant the tract with 3,310 acres (1,340 ha) of potatoes and only 400 acres (160 ha) of barley. [11]
In a 1923 report on the hydrography of the San Joaquin River, the Empire Tract was measured as having 3,680 acres (1,490 ha) of land in total, with 3,361 acres (1,360 ha) irrigated. [12] : 180 Of these, there were still 1,973 acres (798 ha) of potatoes, but there were also 865 acres (350 ha) devoted to growing fruit, 481 acres (195 ha) to beans, and 42 acres (17 ha) to hay. [12] : 180 That year, 600 acres (240 ha) of the tract were farmed by a partnership between Philip Giriodi, D. Stagi, and G. Lazzarino. [13] The next year, Giriodi would file a lawsuit against the others for a dissolution of the partnership, claiming that they had refused to pay him his share of the profits. [13] Two years later, the island was to be owned in its entirety by California Delta Farms, Incorporated. [6] California Delta Farms would continue to own the Empire Tract for some years, but by 1946 the company was dissolved. [14]
In the 1930s, United States president Herbert Hoover operated "extensive farming property" on the Empire Tract. [15] In 1936, the Hoover Ranch, supervised by his son Allan Hoover, was the site of a "shooting affray" [16] in which two men were killed in a dispute over wages for beets. [17] Between 1931 and 1938, much of the island was devoted to farming sugar beets. [18] : 610 By the 1950s, planting on the Empire Tract involved asparagus; a lawsuit involving 813 acres (329 ha) of asparagus farmland was filed in 1955. [19]
In 1955, levee failures on the Empire Tract and nearby Venice Island would cause both to flood; while 75 men were working on the islands at the time, 73 were successfully evacuated by the Army with amphibious vehicles, and two were picked up in helicopters. [20]
In the late 20th century, natural gas deposits were discovered underneath several Delta islands (such as the Union Island gas field and the Rio Vista gas field). The Union Oil Company of California drilled a 9,400 ft (2,900 m) exploratory well on the Empire Tract [21] in September 1964, but failed to find oil. [21] The next year, the Signal Oil and Gas Company drilled another well. [21] By 1973, the Union Oil Company was leasing land in the Empire Tract area to extract natural gas. [22]
In 2008, The Modesto Bee published an analysis of the Delta area's subsidence, which gave projections for elevations in the year 2100. The Empire Tract was expected to have the lowest elevation of any island or tract in the Delta, at around 30 ft (9.1 m) below sea level. [23] In 2012, a water treatment plant was finished to divert water from the San Joaquin River for use in farming the Empire Tract; construction had begun in 1996. [24]
Prior to 1936, travel to and from the island was done by boat; in 1926, a ferry was being operated along the same path later taken by the bridge, at the expense of California Delta Farms Incorporated. [6] At that time, the ferry went from easterly King Island (which was itself in the process of being connected to the mainland via a drawbridge); despite "adverse conditions surrounding the operation of the ferry", it was heavily trafficked, and gravel roads on the Empire Tract itself allowed transportation to and from the ferry slip. [6] The construction of a bridge was recommended at the time by a report submitted to the San Joaquin County Board of Supervisors that year. [6] A proposal was made for the construction of a county-operated ferry at the same location, whose cost was estimated at $1500 ($25,816 in 2023). [25] In 1928, a permit for construction of this ferry was approved by the War Department. [26] Contracts for building the ferry were awarded to Bundeson & Lauritzen, shipbuilders of Pittsburg. [27] In 1935, construction began on a bridge to replace the ferry; [28] work was completed the following year, allowing vehicle access to the island outside of the ferry's operational hours. [29] [7] By 1952, USGS maps of the area show the bridge to King Island and the ferry to Venice Island. [5] In 1954, it was reported that the construction of another bridge, connecting an "Empire Tract" to a "Lower Jones Tract" was proposed (it is not clear which islands were being referred to, as the Lower Jones Tract is some 5 mi (8.0 km) south of the Empire Tract and McDonald Island is between them). [30] As of 1999, regular ferry service operated between the Empire Tract and Venice Island. [9]
Ryer Island is an island in the Sacramento-San Joaquin River Delta surrounded by Miner Slough and Steamboat Slough at their confluence with the Sacramento River, 6.5 miles north-northeast of Rio Vista. It is in Solano County, California, and managed by Reclamation District 501. The 4,750 ha (11,700-acre) island is named in honor of a California pioneer, Dr. Washington M. Ryer, and his family. A map prepared at the time of statehood shows the area divided by the west fork of the Sacramento River, with the western half identified as Priest Island and the eastern half identified as Sutter Island.
McDonald Island is an island in the Sacramento-San Joaquin River Delta, 53 km (33 mi) south of Sacramento. The 2,400 ha (5,900-acre) island is bounded on the north by San Joaquin River, on the west by Middle River and Latham Slough, and on the south by Empire Cut. It appears unlabeled on a 1913 United States Geological Survey map of the area, and on a 1952 USGS map as "McDonald Tract".
Woodward Island is an island in the Sacramento-San Joaquin River Delta, twenty kilometres east of Antioch, and twenty kilometres west of Stockton. The 725 ha (1,790-acre) island is bounded on the west by Old River, on the north by Bacon Island, on the east by Middle River, and Woodward Canal on the south. It is in San Joaquin County, and managed by Reclamation District 2072. It appears on 1913 and 1952 United States Geological Survey maps of the area.
Bouldin Island is an island in the Sacramento-San Joaquin River Delta, 20 kilometers (12 mi) northwest of Stockton on the Stockton Deepwater Shipping Channel. It is in San Joaquin County, and managed by Reclamation District 756. The island is owned by the Metropolitan Water District of Southern California.
Chipps Island is a small island in Suisun Bay, California. It is part of Solano County. It is also known as Knox Island, Its coordinates are 38°03′19″N121°54′43″W by which name it appears on an 1850 survey map of the San Francisco Bay area made by Cadwalader Ringgold, as well as an 1854 map of the area by Henry Lange. In 1959, the state of California used Chipps Island in a legal definition of the western boundary of the Sacramento–San Joaquin River Delta.
Bradford Island is a 2,172-acre (879 ha) island of the Sacramento–San Joaquin River Delta, in Contra Costa County, California, United States. Bradford Island is inaccessible by roads, and is served by a ferry across the False River from nearby Jersey Island. Approximately 48 people lived on the island as of 2020. Other uses of land include wheat farming, cattle grazing, and natural gas extraction.
West Island is a small island in the San Joaquin River, California. It is part of Sacramento County. Its coordinates are 38°01′24″N121°46′43″W. It is shown, labeled "Webers Island", on an 1850 survey map of the San Francisco Bay area made by Cadwalader Ringgold and an 1854 map of the area by Henry Lange.
Little Mandeville Island is a small, mostly submerged island in the San Joaquin River delta, in California. It is part of San Joaquin County, and its coordinates are 38.0104776°N 121.5649522°W. In 1994, 376 acres (152 ha) of former farmland was inundated with water after a levee broke.
Headreach Island is a small island in the Sacramento–San Joaquin River Delta, in northern California. A naturally-formed island existing in a complex with Tule Island to the southeast and Fern Island to the northwest, it was used for farming as late as the 1920s. While several proposals for real estate development on the island were made in the late 20th century, it now consists mostly of marsh and submerged land. Black rails live on the island.
Kimball Island is a small island in the Sacramento–San Joaquin River Delta. It is located in Sacramento County, California, in the United States. Since its discovery, it has been used to grow barley, farm fish, cultivate cannabis, and as residential land. Currently, however, it is uninhabited; since 2000, it has been left to "forever be a wetland habitat", and is sometimes used as a fishing spot.
Spud Island is a small island of the San Joaquin River, located in the Sacramento–San Joaquin River Delta in northern California. It was once used to farm onions; while it is no longer used for agriculture, it remains inhabited. In the late 20th century it was the site of a county park, which offered camping, fishing and swimming amenities free of charge.
Tinsley Island is a small island in the Sacramento–San Joaquin River Delta, in San Joaquin County, California, next to the Stockton Deepwater Shipping Channel. It was created in the 1930s, when dredging to improve the navigability of the San Joaquin River cut it off from Roberts Island. Since 1958, it has been owned by the St. Francis Yacht Club. In 1960, the club transported a lighthouse from San Francisco Bay to serve as its clubhouse, and in the same year began an annual "Stag Cruise"; as of 2024, the club still owns the island and maintains a clubhouse there.
Tule Island is a small island in the Sacramento–San Joaquin River Delta, which exists as part of a complex of islands including directly-adjacent Fern Island and Headreach Island. It is a naturally-formed island, which was used in the early 20th century to farm potatoes, but now consists mostly of marsh. It is currently a habitat for waterfowl and is used as a fishing spot.
The Atlas Tract is an island in the Sacramento–San Joaquin River Delta, in San Joaquin County, California. It has been used for agriculture since it was first reclaimed in the late 19th century.
The Shima Tract is an island in the Sacramento–San Joaquin River Delta. It is part of San Joaquin County, California, and managed by Reclamation District 2115. Its coordinates are 38°01′40″N121°23′06″W, and the United States Geological Survey measured its elevation as 0 ft (0 m) in 1981. It appears on a 1952 USGS map of the area.
The Terminous Tract is an island in the Sacramento–San Joaquin River Delta. It is part of San Joaquin County, California, and managed by Reclamation District 548. Its coordinates are 38°06′45″N121°27′27″W, and the United States Geological Survey measured its elevation as −7 ft (−2.1 m) in 1981. The census-designated place of Terminous, California is on the island.
The Shin Kee Tract is an island in the Sacramento–San Joaquin River Delta. It is part of San Joaquin County, California, and not managed by any reclamation district. Its coordinates are 38°05′45″N121°25′09″W, and the United States Geological Survey measured its elevation as 0 ft (0 m) in 1981. It appears on a 1952 USGS map of the area.
Hog Island is an island in the San Joaquin River, and is one of many islands which constitute the Sacramento–San Joaquin River Delta. It was used for agriculture in the early 20th century, but has now mostly become marsh or submerged land; it remains a spot for fishing, particularly channel and blue catfish.
The Holland Tract is an island in the Sacramento–San Joaquin River Delta. It is part of Contra Costa County, California, and managed by Reclamation District 2025. Its coordinates are 37°59′55″N121°36′08″W, and the United States Geological Survey measured its elevation as 7 ft (2.1 m) in 1981. It appears on a 1952 United States Geological Survey map of the area.
Chain Island is an island in Suisun Bay, downstream of the Sacramento–San Joaquin River Delta in northern California, and the westernmost piece of land in Sacramento County. In the late 1800s, it was considered an "obstruction to navigation" on the Sacramento River. As it was built up significantly from hydraulic mining tailings upstream on the river, plans were made in the early 20th century to remove it and recoup costs by mining the debris. However, this never happened; it was sold by the California State Lands Commission to a private individual in 1959, who listed it for sale the next year. In April 2016, the deed for the island was transferred; as of December 2022, Sacramento County assesses its land value at $18,622.