About: Big Bay Dam     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Whole100003553, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)
QRcode icon
http://dbpedia.demo.openlinksw.com/c/4ukgqTmjcx

Big Bay Dam was an earthen dam located 11 miles west of Purvis, Mississippi in Lamar County. On March 12, 2004 the Big Bay dam embankment failed through piping in the vicinity of the principal spillway 12 years after construction. A peak breach flow of 147,000 ft3/s (4,200 m3/s) was estimated from the breach geometry, breach timing and the reservoir volume. The Big Bay embankment, which is largely intact, is approximately 1890 feet long and 51.3 feet high. The failure occurred with an initial water surface about 6 inches (0.15 m) above the normal pool elevation of 278.0 ft (84.73 m), releasing 14,200 ac-ft (17,500,000 m3) of water and inundating 14.3 miles (23.0 km) of valley to depths of up to 33 ft (10 m) from the dam to the Pearl River. Woody material was stripped from the stream valley

AttributesValues
rdf:type
rdfs:label
  • Big Bay Dam (en)
rdfs:comment
  • Big Bay Dam was an earthen dam located 11 miles west of Purvis, Mississippi in Lamar County. On March 12, 2004 the Big Bay dam embankment failed through piping in the vicinity of the principal spillway 12 years after construction. A peak breach flow of 147,000 ft3/s (4,200 m3/s) was estimated from the breach geometry, breach timing and the reservoir volume. The Big Bay embankment, which is largely intact, is approximately 1890 feet long and 51.3 feet high. The failure occurred with an initial water surface about 6 inches (0.15 m) above the normal pool elevation of 278.0 ft (84.73 m), releasing 14,200 ac-ft (17,500,000 m3) of water and inundating 14.3 miles (23.0 km) of valley to depths of up to 33 ft (10 m) from the dam to the Pearl River. Woody material was stripped from the stream valley (en)
geo:lat
geo:long
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/MVC-364S.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/MVC-385S.jpg
dct:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
sameAs
dbp:wikiPageUsesTemplate
thumbnail
georss:point
  • 31.1826 -89.5712
has abstract
  • Big Bay Dam was an earthen dam located 11 miles west of Purvis, Mississippi in Lamar County. On March 12, 2004 the Big Bay dam embankment failed through piping in the vicinity of the principal spillway 12 years after construction. A peak breach flow of 147,000 ft3/s (4,200 m3/s) was estimated from the breach geometry, breach timing and the reservoir volume. The Big Bay embankment, which is largely intact, is approximately 1890 feet long and 51.3 feet high. The failure occurred with an initial water surface about 6 inches (0.15 m) above the normal pool elevation of 278.0 ft (84.73 m), releasing 14,200 ac-ft (17,500,000 m3) of water and inundating 14.3 miles (23.0 km) of valley to depths of up to 33 ft (10 m) from the dam to the Pearl River. Woody material was stripped from the stream valley for a length of 2300 ft (700 m) immediately below the dam, after which velocities decreased to such an extent that little vegetation was uprooted. The inundation impacted Bay Creek and Lower Little Creek in Lamar and Marion Counties. A damage assessment indicated that, within Lamar County, 26 homes were destroyed, 8 homes had major damage, 8 homes had minor damage, 25 mobile homes were destroyed and 1 mobile home had minor damage. In Marion County, 1 home was destroyed, 13 homes had major damage, 12 homes had minor damage, 1 mobile home was destroyed, 3 mobile homes had major damage, 3 mobile homes had minor damage, Pine Burr Church suffered major damage, Hub Chapel Church had minor damage, and the Pinebur Volunteer Fire Department suffered major damage. In all, 104 structures were documented as damaged or destroyed. There were no deaths. The dam breach characteristics, specifically the breach geometry and formation time, were estimated by Yochum et al. 2008. The breach width was measured to be 230 ft (70 m), with a top width of 315 ft (96 m), right side slope of 0.61 and a left side slope of 1.3 (horizontal/vertical). In regard to the breach timing, increased discharge from a pre-existing seep was first noticed on Thursday, March 11. The seep gradually increased its discharge, with the flow carrying material by the next morning. At mid-morning on March 12 the seep was inspected and was noticed that it had about a ½ inch of head height. By 12:15 water “shot up out of the hole”. Shortly after this the seep was observed to be “spouting approximately 2 to 3 ft in height, with a diameter of about 18 inches”. The area around the boil then collapsed and the embankment began to rapidly erode. This is the point where the breach is assumed to start, at about 12:20. The final breach dimensions occurred from about 13:10. Full formation is assumed to occur at 13:15—the breach formation time is estimated to be 55 minutes. (en)
gold:hypernym
prov:wasDerivedFrom
page length (characters) of wiki page
foaf:isPrimaryTopicOf
geo:geometry
  • POINT(-89.571197509766 31.182600021362)
is Link from a Wikipage to another Wikipage of
is Wikipage disambiguates of
is foaf:primaryTopic of
Faceted Search & Find service v1.17_git147 as of Sep 06 2024


Alternative Linked Data Documents: ODE     Content Formats:   [cxml] [csv]     RDF   [text] [turtle] [ld+json] [rdf+json] [rdf+xml]     ODATA   [atom+xml] [odata+json]     Microdata   [microdata+json] [html]    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 08.03.3331 as of Sep 2 2024, on Linux (x86_64-generic-linux-glibc212), Single-Server Edition (378 GB total memory, 60 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software