Wikidata:Property proposal/National Inventory of Dams ID
National Inventory of Dams ID edit
Originally proposed at Wikidata:Property proposal/Authority control
| Description | Numbering system for dams located in the United States used by the National Inventory of Dams, a publication of the US Army Corps of Engineers |
|---|---|
| Represents | National Inventory of Dams (Q26884741) |
| Data type | External identifier |
| Domain | property, describing notable dams in the US. |
| Allowed values | ((AK)|(AL)|(AR)|(AZ)|(CA)|(CO)|(CT)|(DE)|(FL)|(GA)|(GU)|(HI)|(IA)|(ID)|(IL)|(IN)|(KS)|(KY)|(LA)|(MA)|(MD)|(ME)|(MI)|(MN)|(MO)|(MS)|(MT)|(NC)|(ND)|(NE)|(NH)|(NJ)|(NM)|(NV)|(NY)|(OH)|(OK)|(OR)|(PA)|(PR)|(RI)|(SC)|(SD)|(TN)|(TX)|(UT)|(VA)|(VT)|(WA)|(WI)|(WV)|(WY))[A-Z0-9]{5} |
| Example 1 | Hoover Dam (Q172822) → NV10122 |
| Example 2 | Lock and Dam No. 8 (Q14714516) → WI00803 |
| Example 3 | Holter Dam (Q12060451) → MT00559 |
| Example 4 | Moccasin Dam (Q25831338) → CA00122 |
| Source | 1 2 (pdf) |
| Planned use | Associate US dams with wikidata items with their appropriate entry in the database |
| Number of IDs in source | 91457+ |
| Expected completeness | always incomplete (Q21873886) |
| Applicable "stated in"-value | National Inventory of Dams (Q26884741) |
Motivation edit
The National Inventory of Dams is a list of dams maintained by the US Army Corps of Engineers and published every two years. It assigns dams that fit its inclusion criteria (essentially, large or notable dams in the US) a unique identifier, the NIDID, which is a 7-character string beginning with the postal code of the state or territory the dam. The NID is used to provide references to over 500 items on wikidata (often, latitude, longitude, name of operator, etc.) and contains over 91,000 entries. As a work of the US government, its data is in the public domain. One potential drawback of NIDID use is the NID's online database's technical restrictions, which seemingly prevent the generation of stable URLs and asks users to pre-authorize their access by affirming that they are a member of the public. That being said, any human user can easily navigate the NID, and navigation is aided by the unique NIDID number. Access to the database may change in future years, but the NIDIDs will remain stable. As saddle dams and dikes are assigned the same NIDID as the main dam, this item should not have a distinct values constraint, as two dams (a main one and a saddle) may have seperate wikidata items. Mathmitch7 (talk) 16:41, 31 March 2021 (UTC)
Discussion edit
Notified participants of WikiProject United States.
Support. Thierry Caro (talk) 01:16, 2 April 2021 (UTC)- Support clearly useful. Elli (talk) 06:42, 4 April 2021 (UTC)
- @Mathmitch7, Thierry Caro, Elli:
Notified participants of WikiProject United States 
Done as National Inventory of Dams ID (P9439). UWashPrincipalCataloger (talk) 07:27, 14 April 2021 (UTC)
