Saturday, May 18, 2013

Low Corruption in Washington State

Wonk Blog's Brad Plumer calls attention to a NBER paper (nber.org/papers/w19027) on corruption in state government that draws a correlation between distance from the capital and the main population center and corruption.

I am not particularly convinced of the correlation and the trend line plot, but by the measure used the graph does show that Washington State is the second least corrupt state. Regardless of distance from the population centers, the state appears to have developed a governance approach that minimizes corruption.

Friday, May 17, 2013

Huge Waves and Lisa Gerrard

This post really has nothing about Washington State. But while doing some reading on coastal erosion in southwest Washington a while back I was looking at some video of waves at the Columbia Bar when I came across this video of huge waves with music by Lisa Gerrard. The first scenes are off the northwest coast of France and are - well just amazing. The second video is a bit more music by Lisa with Earth images of our amazing planet.
 
 

Thursday, May 16, 2013

Port Townsend Morgan Hill Divot

Northwest of the Port Townsend waterfront is a great shoreline beach walk with a very steep high bluff.

Morgan Hill Bluff, Port Townsend

I've walked this bluff beach for work possibly more than any other shoreline. For one thing there are homes on the top of the bluff, it is a steep bluff, and it is an eroding bluff. I have not really had that may project sites on the top of the bluff, but two of them required follow up visits as Port Townsend planners are legitimately concerned about any development schemes above the bluff and due to erosion along the toe of the slope (storm-surge-and-bluff-landslides) over the past ten years landslide activity on the bluff has increased.

It is a nice beach walk and unlike many of my projects there are usually people walking the beach. An exception is during high tides when I have had to get a bit wet. Which is why this bluff is eroding - the beach isn't high enough.
 
While walking the shore it is easy to miss the big divot on the bluff. But with the trusty LiDAR it is easy to spot. 

LiDAR of the divot (Jefferson County GIS)

Aerial of the divot (Jefferson County GIS)

Easy to see in the LiDAR but a bit difficult in the aerial. Note the sharp square and adjacent polygon shape on the lower left. These are former drinking water reservoirs on top of the hill summit.

If your agile and the rope is still present, it is possible to scramble up into the divot, but it has gotten progressively more difficult as more erosion takes place.


It is a popular kid hangout - Picture the boys in the movie Stand By Me
Shortly after taking this picture a group of 12 year olds showed up

Headwall of the divot

I have never been able to confirm the full cause of the divot. I was once told by someone that the reservoir had leaked causing a flood of water over the bluff and eroding the divot. I have not been able to find a specific reference to that event, but it makes some sense as the reservoir is no longer in use and the slope above is designated on city hazard maps as a critical drainage corridor. Alternatively, it may have been a case of uncontrolled stormwater draining over the bluff face.

 
1950s aerial with reservoirs in use

Port Townsend potential hazard map
Red indicates potential geologic hazard areas
Yellow indicates potential critical drainage corridor 

It is easy to see that flowing water across this slope would be potentially problematic and could create a divot into the bluff. While the top of the bluff is underlain by hard compact glacial till, the till is sitting on top of a very easily eroded sand with very low cohesion.

Till over alluvial sand
(yes I barked my knuckles earlier in the day)

Water flow across this sand would readily mine the sand out causing rapid bluff retreat. This would particularly true if the water was flowing though a critical drainage corridor as suggested on the City hazard map.


Wednesday, May 15, 2013

San Blas, Mexico and Washington State

Going through old photo slides I came across an unexpected  historic link to Washington State. We once visited San Blas the jumping off port for the very first European visitors that set foot in Washington State.

Raven and me getting ready to head out for the swamps and fresh water springs

I knew almost nothing about San Blas, Mexico when we arrived there. For us it was a place to rest after some hard travels. We did know that the swamps nearby could be explored and that nearby there were some surf beaches. We did head into the jungle with the added benefit of filling our water supply jugs with 15 gallons of fresh water from the springs that poured out of the base of the mountains. A nice treat after weeks of boiling or iodine treatment. And I body surfed some big 10-foot waves that fortunately did not kill me. 

But I was ignorant of the small fishing town's history and its link to Washington State. We stayed in a very old colonial era building. It was a bit of step back in time as the building dated back to the 1700s. It had great air  movement in the rooms which was good because it was hot and humid and it helped with good sleeping. On the hill above the small town were substantial ruins, but at the time not much information.

Remnants of the old fort

The view from inside the church

San Blas was the primary Spanish coastal harbor on the North American coast during the period when Spain tried to solidify its claim on what is now Washington State and the entire coast of North America. That claim was a bit tenuous for the Pacific Northwest as it was based on pronouncements by a pope over 200 years before trying to prevent war and was followed by explorations that laid claim to lands by simply charting the shoreline and occasionally stepping ashore making proclamations of ownership.

There were several problems with the Spanish claims. One was of course the land was already occupied. In 1775 a Spanish party originating out of San Blas came on shore on what is now Washington State and claimed the land for Spain. Quinault warriors had little regard for the Spanish claim and promptly killed a 7-man shore party. It would be 17 years later before the Spanish attempted to establish a land based settlement in Washington. That settlement at Neah Bay originated from San Blas. It was a short lived settlement and was given up in less than a year.

The Spanish Pacific Northwest claim was being undermined by the sea otter fur trade. English merchants learned that it was a lucrative business after Captain Cook's 1778 expedition made large sums selling sea otter pelts obtained in Nootka Sound to the Chinese. Others followed Cook frequently calling in at Nootka Sound on Vancouver Island. The Russians were actively working in Alaska and had established trade centers on the Alaska coast including Sitka. The Americans were in the mix as well with merchants plying the North Pacific.

The ability to simply claim a land by sailing its coast was being undermined by commerce and the English attitude of occupation being a stronger claim. The local coastal populations were not particular about who claimed the Pacific Northwest as they were already firmly occupying the land and had been for centuries and they were enjoying all sorts of new and exotic goods which they could also trade with inland tribes. The Spanish solution to this trouble was to send ships north from San Blas to better chart the coast to bolster their claims and enforce their claims by expelling or arresting European and American merchants that were present.

On the exploration front, the Spanish had a head start on all others. This is reflected in many Spanish names that survive in Washington State: San Juan Islands and the Strait of Juan de Fuca being the most obvious on maps. All named by ships that sailed out of San Blas. Part of this exploration story led to one of the more famous Washington State History lessons: Cook and all those Spanish expeditions were never able to locate the Columbia River despite assuming there was a big river somewhere on the Pacific Northwest coast. Instead it was an American merchant ship, the Columbia under Robert Gray, that found the river giving the United States a huge boost on claiming the Pacific Northwest.

The Spanish explorations and enforcement of their claims in the Pacific Northwest were based primarily out of San Blas. The Spanish claims began to fade and were ultimately harmed by actions that took place on Nootka Sound in 1789. English merchant ships were captured and English prisoners were hauled off to San Blass leading to the Nootka Crisis and nearly to war between England and Spain.

War was avoided as England and Spain agreed to a sort of joint claim without resolving anything. The idea was to defer the claims resolution to a future undetermined date. This deferment was aided by the fact that both Spain and England had joint interests elsewhere; both were interested in containing the ambitions of France. The peaceful resolution opened the opportunity for the United States to continue to insert itself into the region as well. And established a trend of deferring claim resolutions in the region in order to avoid war that lasted nearly 100 years.

As for San Blas its early glory days faded. Its usefulness as a port for controlling the Pacific declined as Spain was far too extended and then Mexico became independent. The fort at San Blas and the Mexican Navy were no match for the United States during the Mexican-American War. The US invaded and plugged all the cannons.

Whenever I come across a reference to San Blass and its history, I think of the quiet fishing town and diving off the front of the jungle boat into the fresh cool spring water. It is hard to picture the first European visitors to Washington State having set sail from what is now a backwater of swamp, jungle, small fishing boats and few hard core surfers.


   

Tuesday, May 14, 2013

Notes on Warden

I visited Warden last summer, but never got around to putting a post up about this small eastern Washington town. It was one of several small towns I visited on the trip, but unlike the others, Warden has not be partially depopulated (washtucna and benge). Warden is a big ag center in that it is surrounded by large scale farming.

Geology plays a bit of a role in Warden's population stability and even growth. Warden is located on the eastern edge of one of the primary flood way paths from the ice-age floods that swept across eastern Washington AERIAL VIEW.

Warden (Google Earth)

The flood path is from the surge of water that came out of Grand Coulee. Warden is off the main flow path enough that the land was not stripped all the way down to bedrock like areas to west in the Pot Holes area (the brown swath to the west of Warden in the image above).

The earliest non First Nations settlement was sheep and perhaps some cattle grazing. This was followed by homestead claims with a significant mix of German and Russian immigrants. The early homesteaders from the 1880s were dry land wheat farmers.

Warden dodged the first depopulation fork by getting a railroad spur that actually operated and stayed in operation. Then Warden got a big boost with the construction of Grand Coulee Dam and the development of the Columbia Basin Irrigation Project. Warden received irrigation water via canals that follow the ice-age flood path. Warden is located on what some locals call the wet line. West of the wet line, farms are irrigated, while east of the line farms are either dry land or irrigated via deep wells (those wells are limited, expensive  and running out of water). Hence, small towns to the east of the wet line have tended to become smaller as mechanization has reduced the labor needs, but to the west of the wet line irrigation has expanded agricultural intensity. Hence, Warden is a bigger town today than it was 50 years ago.

Pamela's Pantry, Warden, Washington

I stopped in at Pamela's Pantry on Main Street after seeing its obvious mix of old style retrofitted with a big fan for the grill. I was hungry and the burger was good. The building is one of the oldest in town.

The name Spudnik perhaps reflects the Russian/German heritage
It also reminded me of my first nickname - Spitnik - a play on the first Russian spacecraft
 

Like many eastern Washington towns, there has been a significant cultural shift in the population

Yes - they grow lots of potatoes in the vicinity

The new canola oil plant construction site
 

Sunday, May 12, 2013

Bolton Peninsula Introduction

The Bolton Peninsula is a bit out of the way and a bit off the beaten path. That said part of my purpose is to share a few geologic notes - there are some important geologic features on this not so easy to get to place. By one example there is an active 1,600-foot wide translational landslide calving blocks of soil off of a 200-foot cliff. This area is slated to be mapped by the Department of Natural Resources Geology Division this year so I am motivated to put together some information on the area. I'm excited about the DNR bringing their skill sets, resources, dating equipment and larger picture experience to a land area I know fairly well and want to know more. But I also think the Bolton may have some features that will shed light on a broader understanding of local tectonics and glacial history. 
 
The peninsula is a steep sided finger of land east of the small town of Quilcene and is located between Quilcene Bay on the west and Dabob Bay on the east and south. The bays are inlets on the northwest side of Hood Canal. The peninsula is approximately one mile across and four miles long. The summit ridge is 570 feet high. Lots of steep slopes for assessing geologic hazards. And those steep slopes also provide excellent exposures to the underlying geology.
Bolton Peninsula with Quilcene Bay on the left and Dabob Bay on the right

As out of the way as the Bolton is for most people, I have had the opportunity to make numerous ventures to the peninsula and have walked its entire shoreline. So for me it has not been out of the way at all.

The Bolton Peninsula is within the Quilcene Quadrangle which is listed to be mapped within the next two years as part of the Washington State Department of Natural Resources Geology Division geologic mapping program. The area has been mapped before by Birdseye (1976). An update and perhaps more detail is warranted as we now have a better understanding of some of the units in the area, LiDAR will help greatly with interpretation of landforms and some technical advances have been made in dating units that were not available to Birdseye. I will say the Birdseye did a remarkable job. Where my interpretations have deviated from Birdseye it has typically been due to level of detail, fresh landslides that exposed units not previously visible, availability of LiDAR and my access to private upland properties.

The southern shore of the Bolton has some unique features that warrant further exploration and interpretation.

Southern end of Bolton

LiDAR southern end of the Bolton

The LiDAR image shows a great deal of detail that could never be deciphered from an aerial image. The smoothness of the upland areas with slight lineal features is the classic uneroded glacial drift landscape with glacial lineations oriented north to south. Not much in the way of recessional outwash from the retreating ice on the uplands of the Bolton. The incised drainages cut into the peninsula are post glacial.

Close up LiDAR of southern Bolton shoreline
 
The south shore of the Bolton has a great bedrock exposures, tilted glacial and non glacial alluvial units, a massive translational landslide and an ancient river deposit with an intriguing gravel and cobble distribution.

A note about access. The shore is public, but there is no official public access via land. Regardless of public versus private, this is a very cliffy shore. The south bluff is for the most part 240 feet high or more and can only be traversed at a few spots and even those are hairy. I have traversed the ravine shown on the right side of the LiDAR above twice. Both times the experience was horrible, dangerous and uncomfortable, and I am used to nasty brush and slopes. I should also add that poison oak is very present on portions of these slopes. The reality is that if you want to visit the southern Bolton shoreline, you will really need to want to, and I would recommend boat or hiking the beach from the limited access points available (There is some public land that reaches the shore, but I am not clear as to its openness to access).

Posts to follow: Twin Rivers Formation, tilted glacial till, the big slide and the Great Puget River?

Saturday, May 11, 2013

Storm Surge and Bluff Landslides

When I first visited the bluff shore below Morgan Hill in Port Townsend approximately 10 years ago, the base of the bluff was for the most part lined with past landslide debris that was well vegetated. The landslide material was acting as a wedge of material protecting the toe of the slope from erosion. But high tides combined with an approximately 2-foot storm surge and winds with waves removed a significant amount of the toe of the slope in 2006. The same storm eroded the base of the bluffs on the east side of Marrowstone Island and numerous other location in the Salish Sea. Following that erosion event shallow soil slope failures began to progress up the bluff slopes and at one location culminated in the high glacial till bluff breaking off a slab of till that collapsed onto the beach this winter.

The storm surge from this event can be seen from this plot of the February 4, 2006 tide at Port Townsend.


 I was curious how the 2006 event stacked up with the December 17, 2012 high tide/storm surge.


The height of the tide was very nearly the same although the period of 10-foot + water level was a bit longer during the 2006 event. There have been a few other similar events at Port Townsend between 2006 and 2012 with the result being continued toe erosion and shallow landslides. Due to development of the waterfront to the southeast, the beach at this location is not built up due to lack of sediment and is susceptible to erosion with subsequent shallow landslides.



The December 17, 2012 tide measured at the Seattle gage was the highest ever recorded in Seattle breaking the previous record from January 1983.


A couple of things to note. The storm surge from in Seattle was at its peak during the low tide or otherwise the record would have been broken by a larger margin. Another note is that the storm surge in Port Townsend was larger than in Seattle. The storm surge in Port Townsend tends to be on the order of 2 feet. And again, wind driven waves are an important factor in driving erosion.

I went through this exercise as I had been to another beach that appeared to have had no erosion at all from this winter's high storm surge. In this case the beach has a significant sediment source to remain built up from eroding bluffs to the south as well as lots of large drift wood which acts as a natural bulkhead. Indeed, despite the lack of landslide debris at the base of the slope, landslides along this shore reach have been very infrequent over the past 50 years.