Samut Prakan Province

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Samut Prakan Province
Wat Phra Samut Chedi.jpg
Wat Phra Samut Chedi
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Official seal of {{{official_name}}}
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Map of Thailand highlighting Samut Prakan Province
Country Thailand
Capital Mueang Samut Prakan
 • Total 1,004.1 km2 (387.7 sq mi)
Area rank Ranked 70th
 • Total 1,310,766[1]
 • Rank Ranked 18th
 • Density rank Ranked 3rd
Time zone ICT (UTC+7)
ISO 3166 code TH-11

Samut Prakan (Thai: สมุทรปราการ, pronounced [sāmùt prāːkāːn] (About this sound listen)) is one of the central provinces (changwat) of Thailand, established by the Act Establishing Changwat Samut Prakan, Changwat Nonthaburi, Changwat Samut Sakhon and Changwat Nakhon Nayok, Buddhist Era 2489 (1946), which came into force 9 March 1946.

It is part of the Bangkok Metropolitan Region. Neighbouring provinces are Bangkok, to the north and west, and Chachoengsao to the east.

Suvarnabhumi Airport is in the Bang Phli District of Samut Prakan Province.


Sanphet Prasat Palace replica, Ancient Siam Museum Park

The province was created during the Ayutthaya period, with its administrative centre at Prapadaeng. It was the sea port of Siam, and was secured with forts, town moats, and town walls. King Rama II started the building of the new centre at Samut Prakan in 1819, after his predecessor King Taksin had abandoned the town fortifications. Altogether six forts were built on both sides of the Chao Phraya River, and on an island in the river the pagoda, Phra Samut Chedi, was erected. These were involved in the Paknam incident of 13 July 1893, which ended the Franco-Siamese War with a French naval blockade of Bangkok. Of the original six forts only two still exist today, Phi Sua Samut and Phra Chulachomklao.


In Thai the word samut is from Sanskrit, samudra, meaning "ocean" or "sea", and the word prakan is from Sanskrit, prākāra, meaning "fortress", "walls", or "stronghold".


Pak Nam and Paknam redirect here

Samut Prakan is at the mouth of the Chao Phraya River on the Gulf of Thailand. Thus the province is also sometimes called Pak Nam (ปากน้ำ), the Thai word for the mouth of a river. The part of the province on the west side of the river consists mostly of rice paddies and shrimp farms as well as mangrove forests, while the eastern part is the urban centre, including industrial factories. It is part of the Bangkok metropolis. The urbanization on both sides of the provincial boundary is identical. The province has a coastline of approximately 47.2 kilometres.

Paknam incident[edit]

War of Pak nam (Franco-Siamese War)
Battle of Paknam

The Paknam Incident was a military engagement fought during the Franco-Siamese War in July 1893. While sailing off Paknam through Siam's Chao Phraya River, three French ships were fired on by a Siamese fort and force of gunboats. In the ensuing battle, France won and proceeded to blockade Bangkok which ended the war.

Conflict arose when the French Navy aviso Inconstant and the gunboat Comete arrived at Paknam and requested permission to cross the bar into the Chao Phraya. The French were on their way to Bangkok, further up the river, for negotiations. When the Siamese refused, the French commander, Rear Admiral Edgar Humann, disregarded the Siamese demands and instructions from his own government. Before the action Humann had been ordered not to cross the bar because the Siamese were well-prepared for battle. Siamese forces included seven 6-inch disappearing guns of the recently built Chulachomklao Fort. The Siamese also sunk several junks and a cargo ship in the river, creating only one narrow passage which the French had to traverse.

Five gunboats were anchored just beyond the sunken junks. They were the Siamese gunboats Makut Ratchakuman, Narubent Butri, Thun Kramon, Muratha Wisitsawat, and Han Hak. Two were modern warships while the others were older gunboats or converted river steamers. A sea mine field of sixteen explosives was also laid. Many Europeans served in the Siamese military at this time: a Dutch admiral commanded the fort, and the gunboats were commanded by a Danish Vice Admiral granted the royal title of Phraya Chonlayutyothin.

A temple mural of Wat Phumin, Nan Province shows the French warships

The French chose to cross the bar just after sunset on 13 July. Their objective was to fight their way past the Siamese defenses but only if fired upon. The weather was overcast and raining. By this time the Siamese were on high alert and at battle stations. The French ships were towed into action by the small mail steamer Jean Baptiste Say. At 18:15 the rain stopped and the Siamese gunners observed the French ships passing the nearby lighthouse. A few minutes later, the French were off Black Buoy when they entered the range of the fort. Siamese gunners were ordered to fire three warning shots, if they were ignored, then a fourth would signal their gunboats to begin firing.

At 18:30, the fort opened fire with two blank rounds but the French continued on, so a third, live, warning shot was fired and hit the water in front of the Jean Baptiste Say. When this warning was ignored a fourth shot was fired so the gunboats Makhut Ratchakuman and Muratha Wasitsawat opened up at 18:50. Inconstant returned fired on the fort while the Comete engaged the gunboats. A small Siamese boat filled with explosives was sent out to ram one of the French ships, but it missed its target. Combat lasted about twenty-five minutes.

Ultimately Rear Admiral Humann forced his way through the Siamese line, ramming and sinking one gunboat in the process. Another was hit by shell fire. Ten men were killed and twelve others wounded. The French suffered as well. While towing the warships past Paknam, the Jean Baptiste Say was hit several times by cannon fire. Her commander was forced to cut the tow line and ground his ship on Laem Lamphu Rai while the Inconstant and Comete proceeded onto Bangkok. Three Frenchmen were killed and two others were wounded. Comete received more hits than the Inconstant but the damage was not serious. The Siamese fort was not damaged.

The following morning, Jean Baptiste Say's crew was still on board their grounded vessel so the Siamese sent a boat and captured the steamer. They then attempted and failed to sink her. The prisoners were treated badly according to reports and put in a Bangkok prison. A day later, the French gunboat Forfait arrived at Paknam and sent a boat full of sailors to recapture the mail steamer but when they boarded, the Siamese occupants successfully repelled the attack. When Rear Admiral Humann arrived off Bangkok, he established a blockade, trained his guns on the royal palace and on 3 October 1893, a treaty was signed, ending the war.

  City municipalities (thetsaban nakhon)
  Town municipalities (thetsaban mueang)
  Subdistrict municipalities (thetsaban tambon)


The provincial seal shows the temple Phra Samut Chedi, the most important site of Buddhist worship in the province.

The provincial tree is Thespesia populnea.

The provincial slogan is Marine Battle Fortresses, Chedi in the Water, Crocodile Farm, Exquisite Ancient City, Phra Pradaeng Songkran Festival, Tasty Dried Snakeskin Gourami, Rap Bua Festival, Industrial Estate

Administrative divisions[edit]

Map of Samut Prakan with the provinces numbered

The province is divided into six districts (amphoe). The districts are further subdivided into 50 sub-districts (tambon) and 396 villages (muban). There is one city (thesaban nakhon), three towns (thesaban mueang) and 13 sub-district municipalities (thesaban tambon). For national elections the province is divided into three voting districts, one represented by three assemblymen and the other two each by two assemblymen.

  1. Mueang Samut Prakan
  2. Bang Bo
  3. Bang Phli
  1. Phra Pradaeng
  2. Phra Samut Chedi
  3. Bang Sao Thong
The giant three-headed statue of the elephant god Erawan, Samut Prakan

Suvarnabhumi Airport[edit]

Suvarnabhumi Airport (RTGSSuwannaphum; Thai pronunciation: [sù.wān.ná.pʰūːm][2]) (IATA: BKK, ICAO: VTBS), also known as (New) Bangkok International Airport, is one of two international airports serving Bangkok. The other one is Don Mueang International Airport.[3][4] Suvarnabhumi covers an area of 3,240 hectares (8,000 acres).

The airport is on what had formerly been known as Nong Nguhao (Cobra Swamp) in Racha Thewa in Bang Phli, Samut Prakan Province, about 25 kilometres (16 mi) east of downtown Bangkok. The terminal building was designed by Helmut Jahn of Murphy / Jahn Architects. It was constructed primarily by ITO JV. The airport has the world's tallest free-standing control tower (132.2 metres or 434 feet), and the world's fourth largest single-building airport terminal (563,000 square metres or 6,060,000 square feet).

Suvarnabhumi is the twentieth busiest airport in the world, sixth busiest airport in Asia, and the busiest in the country, having handled 53 million passengers in 2012,[5] and is also a major air cargo hub, with a total of 95 airlines. On social networks, Suvarnabhumi was the world's most popular site for taking Instagram photographs in 2012.[6]

The airport inherited the airport code, BKK, from Don Mueang after the older airport ceased international commercial flights. The modern Motorway 7 connects the airport, Bangkok, and the heavily industrial eastern seaboard of Thailand, where most export manufacturing takes place.

Bhumibol Bridge[edit]

Bang Krachao

The Bhumibol Bridge (Thai: สะพานภูมิพล), also known as the Industrial Ring Road Bridge (Thai: สะพานวงแหวนอุตสาหกรรม) is part of the 13 km long Industrial Ring Road connecting southern Bangkok with Samut Prakan Province. The bridge crosses the Chao Phraya River twice, with two striking cable-stayed spans of lengths of 702 m and 582 m supported by two diamond-shaped pylons 173 m and 164 m high. Where the two spans meet, another road rises to join them at a free-flowing interchange suspended 50 metres above the ground.

The bridge opened for traffic on 20 September 2006, before the official opening date of 5 December 2006. It is part of the Bangkok Industrial Ring Road, a royal scheme initiated by King Bhumibol Adulyadej that aims to solve traffic problems within Bangkok and surrounding areas, especially the industrial area around Khlong Toei Port, Southern Bangkok, and Samut Prakan Province.

According to tradition, all the bridges over the Chao Phraya in Bangkok are named after a member of the royal family.[citation needed] In October 2009, it was announced that both bridges would be named after King Bhumibol Adulyadej,[7] with the northern bridge officially named "Bhumibol 1 Bridge" and the southern bridge "Bhumibol 2 Bridge".[8] The unofficial name "Mega Bridge" was also widely used.[9]

The structure of the Bhumibol Bridge consists of two parts:

  • Bhumibol Bridge 1 crosses the northern part of Chao Praya River connecting Yan Nawa District, Bangkok and Song Khanong District, Samut Prakan. It is a cable-stayed bridge with seven lanes together with two high pillars. The structure is reinforced concrete 50 m above the river to enable the passage of ships.
  • Bhumibol Bridge 2 is the one across the southern part of Chao Praya River connecting Song Khanong District and Bang Ya Phraek District. The structure is similar to Bhumibol Bridge 1, with seven lanes and two pillars built using reinforced concrete 50 m high.
Bhumibol Bridge


Nissan and Honda have automobile factories in the province. Nissan produces hybrid electric vehicles (HEVs) based on its e-Power technology and batteries for electric vehicles at a plant in Bang Sao Thong District. It has a production capacity of 370,000 vehicles a year. Honda produces hybrid electric vehicles and batteries for electric vehicles, at its factories in Prachin Buri and Ayutthaya. Honda's Prachin Buri factory has an annual capacity of 120,000 units.[10]



  1. ^ "Population of the Kingdom". Department of Provincial Affairs (DOPA) Thailand (in Thai). 2017-12-31. Retrieved 4 Apr 2018. 
  2. ^ "How to pronounce Suvarnabhumi Airport". Forvo. Retrieved 5 March 2017. 
  3. ^ "Don Mueang to be city budget air hub". Bangkok Post. Retrieved 2 July 2013. 
  4. ^ "AirAsia to shift to Don Mueang". Archived from the original on 29 October 2013. Retrieved 2 July 2013. 
  5. ^ 2011 Statistics Archived 27 November 2011 at the Wayback Machine.
  6. ^ Bangkok Post, "Suvarnabhumi, Paragon top Instagram places list". Bangkok Post, 29 December 2012.
  7. ^ "Bridges Named After His Majesty". The Nation. Archived from the original on 2009-10-24. Retrieved 2012-09-19. 
  8. ^ "Bhumibol Bridge in Samut Prakan สะพานภูมิพล - Samut Prakan (Paknam) จังหวัดสมุทรปราการ เมืองปากน้ำ". Paknam. 2009-10-21. Archived from the original on 2012-06-25. Retrieved 2012-09-19. 
  9. ^ "Bangkok's Mega-Bridge" Archived November 26, 2006, at the Wayback Machine. on, with many photos of the construction process. The author tentatively claims to have originated the name 'Mega-Bridge'.
  10. ^ Theparat, Chatrudee; Maikaew, Piyachart (26 July 2018). "BoI gives blessing to B30bn in plans". Bangkok Post. Retrieved 26 July 2018. 

External links[edit]

Coordinates: 13°35′58″N 100°35′48″E / 13.59944°N 100.59667°E / 13.59944; 100.59667