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Statements

Subject Item
dbr:Madden_Dam
rdf:type
yago:Structure104341686 yago:Artifact100021939 dbo:Dam yago:Whole100003553 yago:Object100002684 yago:Station104306080 yago:WikicatDamsCompletedIn1935 geo:SpatialThing dbo:ArchitecturalStructure yago:WikicatHydroelectricPowerStationsInPanama yago:Barrier102796623 yago:Dam103160309 yago:PhysicalEntity100001930 dbo:Infrastructure yago:YagoPermanentlyLocatedEntity yago:YagoGeoEntity yago:WikicatDamsInPanama owl:Thing yago:PowerStation103996655 yago:Obstruction103839993 wikidata:Q12323 yago:Facility103315023
rdfs:label
Madden Dam
rdfs:comment
The Madden Dam, completed in 1935, impounds the Chagres River in Panama to form Lake Alajuela, a reservoir that is an essential part of the Panama Canal watershed. The lake has a maximum level of 250 feet (76 m) above sea level. It can store one third of the canal's annual water requirements for the operation of the locks. Since the reservoir is not part of the navigational route, there are fewer restrictions on its water level.
foaf:name
Madden Dam
dbp:name
Madden Dam
geo:lat
9.211111068725586
geo:long
-79.61638641357422
foaf:depiction
n15:Madden_Dam.jpg
dcterms:subject
dbc:Hydroelectric_power_stations_in_Panama dbc:Energy_infrastructure_completed_in_1935 dbc:1935_establishments_in_Panama dbc:Dams_in_Panama dbc:Panama_Canal dbc:Dams_completed_in_1935
dbo:wikiPageID
34145909
dbo:wikiPageRevisionID
1062857940
dbo:wikiPageWikiLink
dbc:Hydroelectric_power_stations_in_Panama dbr:Lake_Alajuela dbc:Energy_infrastructure_completed_in_1935 dbr:Panama_Canal dbr:Martin_B._Madden dbr:Francis-type dbr:Panama dbr:Gatun_Lake dbr:Gatun_Dam dbr:List_of_power_stations_in_Panama dbr:Chagres_River dbc:1935_establishments_in_Panama dbc:Dams_in_Panama dbc:Panama_Canal dbc:Dams_completed_in_1935
owl:sameAs
n9:315133939 yago-res:Madden_Dam wikidata:Q6726599 n19: freebase:m.0kfx04q n23:4qkcZ
dbp:wikiPageUsesTemplate
dbt:Reflist dbt:Portal dbt:Citation_needed dbt:Commons_category dbt:Infobox_dam dbt:Use_dmy_dates dbt:Panama_Canal dbt:Coord dbt:Authority_control dbt:Convert
dbo:thumbnail
n15:Madden_Dam.jpg?width=300
dbp:country
dbr:Panama
dbp:imageCaption
Madden Dam in 1989
dbp:opening
1935
georss:point
9.21111111111111 -79.61638888888889
dbo:abstract
The Madden Dam, completed in 1935, impounds the Chagres River in Panama to form Lake Alajuela, a reservoir that is an essential part of the Panama Canal watershed. The lake has a maximum level of 250 feet (76 m) above sea level. It can store one third of the canal's annual water requirements for the operation of the locks. Since the reservoir is not part of the navigational route, there are fewer restrictions on its water level. The Madden Dam was built to prevent the occasionally torrential flow of the once wild Chagres River, which flows into the navigational route of Gatun Lake and to control the level of water in the lake during the dry season. The river's unruly flow posed a major challenge to the construction of the Panama Canal which was originally addressed by the construction of the Gatun Dam. Water from the dam's reservoir is also used to generate hydroelectric power and to supply Panama City's fresh water. The dam and the reservoir behind it were both named for U.S. Congressman Martin B. Madden of Illinois, who was a chairman of the House appropriations committee during the period while the U.S. was constructing the Panama Canal. The reservoir, which had been known as Madden Lake from the time the dam first became operational, was renamed Lake Alajuela after the Canal Zone reverted to Panamanian control at the end of 1999.
dbp:plantCommission
1935
dbp:plantTurbines
3
dbp:resName
dbr:Lake_Alajuela
dbo:lake
dbr:Madden_Dam__Lake__1
dbo:part
dbr:Madden_Dam__PowerStation__1
gold:hypernym
dbr:Part
schema:sameAs
n9:315133939
prov:wasDerivedFrom
wikipedia-en:Madden_Dam?oldid=1062857940&ns=0
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0.274
dbo:wikiPageLength
4262
dbo:height
67.0
dbo:length
274.0
dbo:openingYear
1935-01-01
dbo:country
dbr:Panama
foaf:isPrimaryTopicOf
wikipedia-en:Madden_Dam
geo:geometry
POINT(-79.616386413574 9.2111110687256)