-
50,000 BCE
Bear River diverted into Bon. basin
Bear River was diverted into the basin about 50,000 yr BP; Pederson et al. 2016). -
Period: 40,000 BCE to 30,000 BCE
GSL dried out- replaced by wetlands
A core taken from Great Salt Lake between Carrington Island and Promontory Point (core GSL00-4, Fig. 1), has been interpreted (Balch et al. 2005) as indicating that at times during the past ~200,000 yr ostracodes and gastropods lived in wetland environments on what is now the floor of Great Salt Lake. 200 ka to 30 ka -
Period: 32,000 BCE to 25,000 BCE
WS2 carbonate sediments deposited
WS2 deposited (150 cm - 30 ka, 284 cm ~34 ka)
faster depositional rate when no ostracodes (~0.48-0.5mm/yr), depositional rate when ostracodes was ~0.18-0.2 mm/year Carb actually goes to 90 cm...assume 0.2 mm rate for 55 cm - means ends at ~27 ka. -
Period: 32,000 BCE to 26,000 BCE
WS2 deposited
WS2 deposited (150 cm - 30 ka, 284 cm ~34 ka)
faster depositional rate when no ostracodes (~0.48-0.5mm/yr), depositional rate when ostracodes was ~0.18-0.2 mm/year -
26,000 BCE
Hansel Valley Ash deposited (base of Bonneville Sequence)
Miller et al, 2008 ~28 ka -
Period: 24,000 BCE to 22,000 BCE
Stansbury Oscillation
-
20,000 BCE
Sr Isotope record
Hart 2004 -
16,000 BCE
Bonneville Shoreline Max
-
13,500 BCE
Provo Shoreline Forms
-
11,000 BCE
early Younger Dryas
the Gilbert episode occurred at the tail end History of Great Salt Lake, Utah, USA: since the Termination of Lake Bonneville of the Younger Dryas, but earlier in the Younger Dryas (that is, between the end of Lake Bonneville at about 13,000 yr B.P. and the Gilbert episode) that lake levels were likely low, similar to modern lake levels, although no shorelines of that age have been identified. -
10,000 BCE
Humans occupy GSLD and leave footprints
-
Period: 10,000 BCE to 7000 BCE
western Bon basin wetter than today
However, rivers and wetlands were much more extensive than today (at least in the western Bonneville basin) from ?12.9 to 9.8 ka cal (Oviatt et al., 2003), prob- ably due to Sevier-basin overflow and to groundwater discharge. -
Period: 9500 BCE to
Holocene climate
The most secure inter- pretation may be that the early and middle Holocenes were warmer and/or drier than the late Holocene (and/or that enhanced summer insolation during these periods had direct effects on the indicators).(Oviatt et al, 2021) -
Period: 9500 BCE to
saline GSL, stratification?
end of the Gilbert ~11,500 yr BP) - ~10,000 yr BP, sedimentation differed inGSL from that of most of postGilbert (Oviatt et al. 2015). Flat, finely laminated mud with brine-shrimp cysts (egg cases) was deposited at that time, in contrast to the ripple-laminated, brine-shrimp fecal-pellet mud was deposited over most of the lake floor after 10,000 yr BP. GSL undisturbed laminations, showing that wave energy did not reach the bottom of the shallow lake, suggest that the lake was stratified. -
Period: 9500 BCE to 6000 BCE
GSL levels lower than average
GSL levels lower than average Thompson 2016 Is this when salts (halite and mirabilite) were deposited in the cores of Spencer et al, 1984? (Cores E and F) salts deposited before Mazama and after gilbert Jones et al - interpret the deposition of salts to occur subsequent to the Gilbert shoreline -
9200 BCE
Basal Solstice Core Date
OSL data 11.2 ka (get C-14 date?) -
9000 BCE
Gilbert Episode
isostatic rebound of the basin was probably complete prior to the Gilbert episode. Stratigraphic and geomorphic observations support this hypothesis (Oviatt 2014). If so, no isostatic rebound has occurred in the basin during the Holocene. (Fig. 2; Bills et al. 1994; Bills, B., written communication, 2020) (isostatic depression of Earth’s crust beneath the lake basin was essentially keeping up with rising lake level and increasing water load during the transgressive phase). Miller et al. (2013) -
8900 BCE
Post Gilbert - salinity spike in GSL
The Gilbert-episode Lake was brackish and supported ostracodes (Oviatt 2014) in the deepest part of the basin, that is, in the area of modern Great Salt Lake. However, in the Great Salt Lake Desert, where evaporation dominated over inflow, the Gilbert-episode Lake may have been more saline. Evaporation did not render GSL saline enough for ostracodes to be replaced by brine shrimp until immediately after the Gilbert episode (Oviatt 2014; Thompson et al. 2016). (Oviatt 2014; Oviatt et al. 2005). -
Period: 8900 BCE to 6500 BCE
10.9 to 8.5 ka - early holocene wet period
10.9 to 8.5 ka - early holocene wet period -
8500 BCE
marsh formed at Blue Lake
Benson 2011, Louderback and Rhode -
8300 BCE
Danger Cave: Approximate earliest known human occupation
-
8000 BCE
undated <11 ka, lake rise to ~1298 m
Although it is known that Great Salt Lake rose to 1289 m (4230 ft) after the Gilbert episode (Oviatt et al. 2015) (see discussion below), that lake transgres- sion did not leave a stratigraphic record at the Baileys Lake site -
7000 BCE
post-Bon. dessication of GSL?
No evidence has been found of wetland environments anywhere on the floor of Great Salt Lake during the past 13,000 yr (Grey and Bennett 1972, p. 4; Balch et al. 2005; Dinter and Pechmann 2014; examination of many sediment cores from Great Salt Lake by Oviatt and Thompson, 1995-present). (wetland wound indicate low water level and movement of wetlands/river mouths to basin center -
7000 BCE
GSL unconformity?
Post-Bonn but Pre-Mazama
Colman et al. (2002) interpreted seismic profiles of Great Salt Lake sediment as indicating truncation at “a very slight angle” stratigraphically beneath the Mazama ash and above the Lake Bonneville deposits. They thought the truncation might represent an “unconformity However, in our examination of sediment cores from different locations in Gilbert Bay, we have seen no indication of such an unconformity. -
6500 BCE
peak aridity in leviathan cave record
6.5 ka -
Period: 6300 BCE to 4500 BCE
Blue Lake Wetland Largely dried out
Louderback 2009 -
6200 BCE
Blue lake peak in vegetation
Pinus and Artemisia pollen percentages decreased during the earliest Holocene, and Amaranthaceae pollen rose to its maximum percentages at ?8.2 cal ka (Louderback and Rhode, 2009). A -
Period: 6000 BCE to 4000 BCE
GSL levels higher than average
Great Salt Lake may have experienced higher levels between about 8000 and 6000 yr BP Thompson et al 2016 -
5610 BCE
Mazama Ash Deposited Regionally
The age of the Mazama ash is well-known because numerous radiocarbon ages of associated materials have been obtained in western North America (Bacon 1983; Hallet et al. 1997), and its age has been determined by counting annual layers
in the Greenland ice sheet (Zdanowicz et al. 1999). Its radiocarbon age is 6790 ± 100 14
C yr BP, and its calibrated age is 7630 ± 150 cal yr BP. Thompson et al./, 2016 - also express that there may have been C-14 evidence of erostion in pre-Mazama layers -
Period: 4500 BCE to 2400 BCE
Blue Lake cooler and Moister
On the western periphery of the Bonneville basin, Louderback and Rhode (2009) found signs of cooler and/or moister conditions beginning ?6.5 cal ka, following nearly 2000 years of relatively warm and dry conditions at Blue Lake. Here marshes replaced playas and grass meadows, and Artemisia increased relative to other, more xerophytic shrubs -
Period: 4000 BCE to 1000 BCE
GSL levels lower than average
GSL levels lower than average Thompson 2016 -
1000 BCE
Blue Lake (Late Holocene record)
Rhode (2009) identified an interval of cooler climate from ?4.4 to to cooler conditions from ?2.7 to ?1.5 cal ka. Although the timing does not ?3.4 cal ka, with warmer conditions from ?3.4 to ?2.7 cal ka, and a return precisely align, the sequence of changes inferred at Blue Lake is similar to the GSL96+ sequence through subzone E2, and, given the uncertainties involved in dating, they may actually be correlative. -
Period: 1000 BCE to 1 CE
GSL higher than average
3000 and 2000 yr BP Thompson et al 2016 -
Great Salt Lake Desert Region explored
By 1824, Jim Bridger and other mountain men had explored the Great Salt Lake Desert region. -
Jedediah Smith led the first known party of white men across the area
In 1826, Jedediah Smith led the first known party of white men across the area. The accounts of their hardships caused travelers to avoid the area for nearly twenty more years. (From Carpenter memo 2001) -
Expedition explores the Bonneville Salt Flats
An expedition was sent to the area in 1833 by Captain B.L.E. Bonneville, for whom the salt flats are named. Later expeditions provided proof that the eastern Great Basin was once filled by an ancient lake ... Lake Bonneville. Captain Bonneville, however, never
visited the salt flats. (from BLM ~2000 BSF pamplet) -
First recorded crossing of Great Salt Lake Desert
The first recorded crossing of the salt desert was made
in 1845 by Kit Carson, Basil Lajeunesse, Lucien
Maxwell, and Auguste Archambeau for Captain John
C. Fremont's survey party. Fremont's government
explorations were the first attempts at scientifically
investigating the Great Basin (from BLM BSF pamphlet, ~2000) -
Donner-Reed party crosses BSF
"This desert had been represented to us as only forty miles wide, but we found it nearer eighty. It was a dreary, desolate e, alkali waste; not a living thing could be seen; it seemed as though the hand of death had been laid upon the country" (Virginia Reed Murphy, Donner-Reed Party, 1846) In early 1846, 23 year old Lansford Hastings retraced
Fremont's trail across the salt plain and was convinced
this was a quicker, better route to California. -
BSF first proposed as a racing location
The first recorded use of the BSF for racing occurred by W. D. Rishel, who came upon the area in 1896 when charting a course for a New York to San Francisco bicycle race. He returned eleven years later (1907) in a 4-cylinder Pierce Arrow but turned back after sighting what he later found to be a mirage. He returned four years later (1911) in a Packard, drove across the salt, and became convinced it had a future as a land speed racing track.(Carpenter memo ~2001) -
Period: to
Western Pacific Railroad constructed through BSF
Western Pacific Railroad line constructed through Bonneville Salt Flats. This westward rail expansion pierced the Salduro Marsh dead center towards Wendover. Records and studies of the work performed cite numerous difficulties encountered in constructing the railroad due to the salt flats thickness and hardness.
The Western Pacific Railroad's passenger service began in 1910. Source: 2016 Land speed Racing Community Position Paper -
Period: to
Railroad crosses BSF
Western Pacific Railroad line constructed through Bonneville Salt Flats. This westward rail expansion pierced the Salduro Marsh dead center towards Wendover. Records and studies of the work performed cite numerous difficulties encountered in constructing the railroad due to the salt flats thickness and hardness.
1907 -
Potash production history
prior potash production near Intrepid’s facility and farther east near Salduro was by several entities with attempts from about 1907 to the 1930s, but with consistent commercial production from 1939 to 2004 (Gwynn, 1996; Kipnis and Bowen, 2018); -
salt mining begins
Source: save the salt -
Ground Water in Box Elder and Tooele Counties, Utah
-
First unofficial world land speed record set at BSF
Teddy Tetzlaff drives the Blitze11 Benz to the
first unofficial record of 141.73 mph on the salt. Source: Save the Salt -
Telephone line completed across BSF
In June 1914, a telephone line was completed across the BSF and the "Wedding of the Wires" occurred in Wendover, Utah, on the west edge of the BSF. The first transcontinental telephone line had been completed. -
The saline deposit covers a surface area approximately sixty-five miles long and twenty-five miles wide
Salt Lake Tribune, Sept. 12, 1915 article
“Mighty Bed Of Salt Being Scooped Up For Use Of Mankind.” Opening paragraph states, “The world’s greatest natural speedway is being torn up and ground up and dispensed to the public in cartons and packages…,The largest deposit of pure salt yet discovered is being marred, is disappearing…,The saline deposit covers a surface area approximately sixty-five miles long and twenty- five miles wide.” -
Potash plant begins construction
The erection of a plant was commenced in the latter part of 1916. Domestic Potash Production, 1917 by H. Gale -
Period: to
First salt mine at BSF
In the fall of 1916 the Solvay Process Co. obtained control of the
Montello Salt Co. and commenced construction of a plant to produce
potassium salts. Production began in 1917 and increased rapidly
until in 1920 the Utah-Salduro Co., the subsidiary operating com?
pany, was the largest single producer in the country. In 1921 the
plant was closed, and operations since then have been restricted to the production of salt. The Bonneville Co., -
Potash Production Begins
Utah-Salduro Company (subsidiary of Solvay Process Co.)
Doc: Gale, H.S., “Potash in 1916: U.S. Geol. Survey Mineral Resources, 1916”, pt 2, pp. 98 – 100, 1917. The first commercial potash production from BSF salt brines began in 1917 and continued until 1921 when imports of potash from Germany made production from BSF uneconomic. -
Period: to
Victory Highway Construction
-
Period: to
Attempted potash operations
During 1920 through 1930, efforts were made to establish an economic potash operation from 40 square miles of BSF located south of what is now 1-80, but operations became inactive after 1930. -
Period: to
Utah-Salduro Company manages potash mine
ass reported on deed events (minimum dates) -
Lincoln Highway across BSF completed
In 1925, a segment of the Lincoln Highway was completed. It was built on top of compacted salt which had been used as the roadbed. Unfortunately, it acted like a dike to the waters that were collected on the BSF and required costly repairs from the
eroding action of the ponded waters. Innovations in road drainage helped solve the problem and the road eventually became U.S. 40 and then Interstate 80 -
Ab Jenkins raced Western Pacific train 125 from SLC to Wendover
in 1925, Ab Jenkins raced a Western Pacific train 125 miles from Salt Lake City to Wendover, Utah. Over good roads and bad, Jenkins raced and won. That focused more racing attention on the salt flats. -
Nolan, 1927 reports the salt flat cover an area of nearly 150 square miles
Data collected in 1925
This is including the area south of present day I-80 Potash Brines in the Great Salt Lake Desert, Utah,“ U.S. Geological Survey Bulletin 795-B, by Thomas B. Nolan. “The salt is reported to reach a maximum thickness of 5 feet near the central portion of the deposit. The greatest amount found during boring, however, was 3½ feet near Salduro station. From the maximum it thins rather gradually to zero at the edge.” report -
24 hour endurance records set
By the middle 1930s, 24 hour endurance records were being
set at speeds over 135 miles per hour. -
First World Land Speed Record set at BSF
Sir Malcolm Campbell establishes a new land
sl?eed record for one mile, 301.129 mph, during
his first trip to the salt flats (BLM BSF ~2000 brochure) Britain’s Sir Malcolm Campbell; new 300MPH record (Save the Salt) -
potholes noted on BSF
from Bonneville: The Fastest Place on Earth, Louise Ann Noeth -
Speed record that lasted 24 years set
John Cobb begins what is later to be a 24-year
hold on the land speed record after traveling
367.910 mph in his Railton (from BLM Brochure) -
Sustained potash production begins
By 1939 operations were restarted and potash and other mineral production continues today, with most of the facilities found south of Interstate 80 (Bingham, 1980, pp. 230-231 ). Much of that production occurs from private and state-owned lands. Several thousand acres of public land managed by the Bureau of Land Management (BLM) are leased for mineral production. -
Salduro Loop Constructed?
Before 1946 (present on 1946 Aerial photograph UGS historic image archive) - appears on aerial photograph, purportedly built as a trench by a Kaliser potash (Kaliser began operations in 1940's) -
Bonneville, Ltd. active at potash mine
also active in 1942 - evidenced from BSF Kaiser Reilly deed description -
Bureau of Land Management (BLM) becomes custodian of the BSF
-
1946
Up until 1946, land management and actions affecting the salt flats were performed by the General Land Office (Carpenter, 2002) -
1946 Aerial image of salt crust
-
First “Bonneville National Speed Trials” (precursor to modern “Speed Week”) held at the BSF
2016 LSRC position paper In 1949, the first Bonneville Nationals Speed Trial was
held. Sponsored by the Southern California Timing
Association , Speed Week is an annual event held at the
end of August (Or Bonneville Nationals, inc??) (Carpenter, 2002) -
Utah-Salduro company transfers assets to Bonneville Ltd.
-
Period: to
floating island area berm
the northern berm(?) to floating island went in before 1972.... (before any worry of the WDPP) -
ircular-track portion (8,927 acres) of the Bonneville Salt Flats designated as an automobile racing and testing ground.
Public Land Order 852: Circular-track portion (8,927 acres) of the Bonneville Salt Flats designated as an automobile racing and testing ground. -
1953 Aerial imagery
salt flat extent of ~140 square miles (including area to the south) 1953 - buildup on western side of mine and to the south, suggests rgional input of solute and water from these directions -
Period: to
modern day access road installed
access road - between 53 and 78 -
GM names new Pontiac the "Bonneville" after it races on BSF
-
USGS Survey of Salt Crust Thickness
-
Very dry year, water lever at 5 feet below surface, dirt from Mountains accumulate on surface
from Bonneville: The Fastest Place on Earth, Louise Ann Noeth -
Ditch near access road excavated?
from Bonneville: The Fastest Place on Earth, Louise Ann Noeth -
potassium lease issued
Federal government issues potassium leases covering 24,699.83 acres on the BSF to Bonneville Ltd.; leases cover area north of the highway and just east of the BSF racetracks; collection ditches dug on leases to allow for withdrawal of salt brine for potash production. The 14 miles of collection ditches were open to surface water from the raceway. Ten Federal Potassium (potash) leases covering 24,699.83 issued (Intrepid Potash Reclamation Plan, 2012). -
jet-powered car speed record set >400 mph
Craig Breedlove, in the jet-powered Spirit of
America, breaks Cobb's longstanding land speed
record by going 407.447 mph -
First complaint of BSF shrinking, not just poor crust quality
from Bonneville: The Fastest Place on Earth, Louise Ann Noeth -
First pumping of ditches east of BSF (1963 or 1965)
Lines, 1979
ditch system north of Interstate Highway 80 and east of the Bonneville Racetrack. This ditch system has been operated since about 1963 and was the only ditch operated north of the interstate highway since 1966. (Stephens, 1974, p. 15). NOTE: Intrepid Potash reclamation plan (2012) notes pumping first occurred in 1965 -
Bonneville Ltd. extends 1-year lease to Bonneville Speedway Association for area to north of I-80
-
Transfer of potash mine from Standard Magnesium and Chemical Company to Kaiser Aluminum and Chemical Corporation
-
Land speed record >600 mph set
Land speed record had been raised to over 600 miles per hour in a jet powered car. -
All ditches other than west ditches stop operation.
from Lines, 1979
- Salduro loop ditch pumping ends
- Any southern ditches pumping ends Stephens 1974 also notes this! (east ditches active since 1966) -
I-80 Construction begins
-
Period: to
I-80 construction replaces Hwy 40
-
Western Canal Removed - in part due to complaints that it was drying out the salt
from Bonneville: The Fastest Place on Earth, Louise Ann Noeth ( 40.752897°, -113.961314° to 40.741984° to -113.950631°)? -
Last World Land Speed Record to be set at BSF
Gary Gabelich driving the Blue Flame; international land speed racing community to move record-setting venue to Black Rock Desert and other locations due to reduced length of BSF race track. -
rocket-powered car speed record >600 mph
The rocket age comes to the salt flats when
Gary Gabelich drives the B/11e Flame to a
622.407 mph record (from BLM ~2000 brochure) -
First documented occurrence of ditches north on eastern edge of I-80
So the northern ditches on east edge of BSF installed between 1953 and 1970 -
restoration attempt spreads 18 inches of mixed salt and mud on track
from Bonneville: The Fastest Place on Earth, Louise Ann Noeth -
Salt Crust Thickness Study Issued
Utah Geological and Mineral Survey -
Bonneville Salt Flats Race Track added to National Register of Historic Places
-
BLM approved an update to Kaiser's Mine Plan that allowed the company to move the primary evaporation pond 4 -PP4 from private property onto public leased land and create primary pond 5-PP5
In 1975 the BLM approved an update to Kaiser's Mine Plan that allowed the company to move the primary evaporation pond 4 -PP4 from private property onto public leased land and create primary pond 5-PP5. (Intrpid Potash mine relcamation plan, 2012) -
"wet year" on BSF - poor racing
from Bonneville: The Fastest Place on Earth, Louise Ann Noeth -
U.S. Geological Survey and BLM study issued
-
blown fuel streamliner speed record
D. DeBring' s blown fuel streamliner, DeBring's
Longshot, establishes a record at 269.196 mph. -
BSF looses title "Fastest Place on Earth"
Richard Noble sets 633 mph record at Black Rock Desert, Nevada driving the jet-powered “Thrust II" -
Period: to
Decreased salt crust quality from flooding
Reported in Noeth, 2011; https://landspeedproductions.biz/wp-content/uploads/FFT_Dec11.pdf -
BSF designated "Area of Critical Environmental Concern"
now identified as Bonneville Salt Flats Special Recreation Management Area. -
North berm between collection ditches and floating island installed
mid-late 80's - this was constructed to stop WDPP brines from entering BSF (NOT to stop laydown and natural brines from leaving BSF) -
Potash mine management transferred from Kaiser Aluminum and Chemical Corporation to Reilly Tar and Chemical Corporation
-
Save the Salt advocacy group founded
-
Period: to
Shorter Racecourse Introduced
from Bonneville: The Fastest Place on Earth, Louise Ann Noeth -
northern containment dike extended?
It is recommended that for an immediate beneficial effect, the containment dilke from the south end of Floating island to the north end of the Reilly collection ditches be constructed prior to the winter of 1991-92. The above work can be accomplished during the final design for the remainder of the project.
1490-R5
Bingham engineering report -
Heavy winter precipitation and decreased crust quality
During the winter and early spring of 1992-93 extensive, prolonged flooding radically changed the salt surface by preventing the formation of the annual crust well into the summer (from Noeth, 2011; https://landspeedproductions.biz/wp-content/uploads/FFT_Dec11.pdf) -
Crust chemical composition study - less NaCl = crumbly salt
from Bonneville: The Fastest Place on Earth, Louise Ann Noeth -
Geodetic survey? USGS and NBSP
from Bonneville: The Fastest Place on Earth, Louise Ann Noeth -
BLM joined Reilly in a Salt Laydown Agreement
Reilly Industries, Inc. (Reilly) and BLM have been con-
ducting a Salt Laydown Project to increase the salt-crust thickness of the Bonneville Salt Flats. Reilly funds the Salt Laydown Project’s operation which includes capital costs of at least $1,000,000, and operating costs of $80,000 per year. In 1995, BLM joined Reilly in a Salt Laydown Agreement where Reilly and BLM agreed to jointly monitor the Salt Laydown Project’s daily and monthly brine chemistry and flow rates (Carpenter, 2002) -
Racing attendance 2000
For example, the number of people attending the 2000 racing events were:
• Speed Week - 6,316 • World of Speed - 864 • World Finals - cancelled due to rain
(Carpenter, 2002) -
Investigation of Salt Loss from the Bonneville Salt Flats, Northwestern Utah
-
turbine-powered speed record
Don Vesco sets the national turbine powered
record at 400.833 mph in the Team VescoTurbinator. -
Salt laydown project begins
The mining company "begins pumping salt brine onto the BSF under voluntary salt laydown project. Independent testing of salt brine and surface samples reveal consistency is excellent for supporting racing vehicles." - Save the Salt laydown to be deposited within a 28 square mile are at BSF - laydown report -
northern berm added to contain laydown brine
Landsat Imagery -
Cremaster 2 filmed at BSF
4000 tons of salt used to build a "corral" for artisitic film. Salt added and filming occured when BFLAT was flooding. October filming? -
Period: to
brine extraction north of second 90 degree change in ditch ends
start date unknown so range used here -
Assessment of salt laydown project issued
BLM Professional Geologist W.W. White III -
Potash mine management transferred from Reilly Industries, Inc. to Intrepid Potash, Inc.
-
BLM approved mining plan required mining company to replenish brine extracted from BSF
BLM approves mining plan and final EA contingent on Intrepid continuing the salt laydown project and returning an amount of salt in brine form equal to the amount of salt they remove from the BSF -
concern about alluvial fan drawdown expressed
In 2012, BLM wrote in Intrepid Potash Mine and Reclamation Plan (Modification) Environmental Assessment: "Increasing the amount of water pumped from the alluvial fan aquifer to accommodate the salt laydown project may be depleting the aquifer and increasing the flow from the shallow brine aquifer to the alluvial aquifer. -
dry salt ruled out as a tenable solution to introducing salt
Another alternative considered was the BLM has looked into several different types of material handling scenarios (trucking, conveyors, scrapers etc.) for moving salt onto the salt flats. From 1997 to 2002 there was 6.2 million tons of salt moved from the Intrepid Property to the Bonneville Salt Flats through pumping. In contrast it would take 155,000 trucks (at 40 tons per truck) to haul that amount of salt. (Intrepid potash EA, 2012) -
Intrepid Potash 2012 EA indicates only 4 miles of Nothern leases ditches are active
written by Bureau of Land Management. Later document (2014) shows that northern booster pump is abandoned -https://fs.ogm.utah.gov/FILES/MINERALS/PERMITS/045/M0450002/2014/Incoming/11252014.pdf -
September races canceled because of rain
-
Racing canceled
unsuitable conditions -
estimated 2,000 tons of salt were successfully deposited on the mud surface at the end of the access road to the BSF racing area
-Save the Salt
estimated 2,000 tons of salt were successfully deposited on the mud surface at the end of the access road to the BSF racing area -
Bingham Engineering abbreviated environmental assessment
determines that dry salt laydown would be uneconomical for racing community -
Racing canceled
unsuitable conditions -
Two breaches in the Salduro Loop filled
-
Heavy rains lead to cancellation of all racing events