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Structure dossier · WDID 4700816 · 1 · NORRIS CREEK · DWR record
Where this page's figures come from
Generated 2026-08-28 00:37 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (a1c9146) — every figure regenerates from this named code version and data image.
Where it sits
Location as DWR records it. Faint dots are the neighbouring water; click any to open it.
Which of its rights are out of priority?
Not computable for this structure: this structure is not on the modelled flow network, so no reference gage can honestly stand in for it.
Where it sits in line
Priority 1889-10-07 — 221st most senior of the 1262 structures with decreed rights in this water districtDWR's administrative subdivision of a river basin; the unit calls are usually stated in..
Under prior appropriationColorado's rule for sharing water: first in time, first in right. Age decides, not proximity or need., everything ahead of it in this line is satisfied in full before it receives any water. Immediately ahead: POMROY DITCH 1 (1889-09-30). Immediately behind: ROARING DITCH (1889-10-07).
Decreed rights (4)
| Admin noDWR's numeric encoding of a water right's seniority. Smaller is more senior; the integer part counts days from 1849-12-31 to the date that ranks the right. | AppropriatedWhen water was first put to beneficial use. It sets seniority unless a prior adjudication date is later. | AdjudicatedWhen the water court confirmed the right. A use decreed in 1975 was not a decreed use in 1955, however old the appropriation is. | AbsoluteA right actually put to use, as opposed to conditional -- a placeholder for a use not yet made. | ConditionalA right reserving a place in line for a use not yet made; it must be diligently pursued or it lapses. | Units | UsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on. | Case |
|---|---|---|---|---|---|---|---|
| 14525.0 | 1889-10-07 | 1892-09-19 | 0.0 | 0.0 | C | IRR | 102(92) |
| 14745.0 | 1890-05-15 | 1902-04-23 | 0.0 | 0.0 | C | IRR | 107 |
| 19248.0 | 1902-09-13 | 1908-07-01 | 16.0 | 0.0 | C | IRR | 164 |
| 46386.33038 | 1940-06-15 | 1977-12-31 | 24.0 | 0.0 | C | IRR |
Legal record & documents
4 decreed actions on record across
3 court cases:
W1173-77, CA1784, 87CW0101.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
W1173-77 | 1 | 1977-12-31 | S |
CA1784 | 1 | 1908-07-01 | O |
87CW0101 | 2 | 1902-04-23 | O |
DWR's own records for this structure: net amounts · transactions & adjudication history · scanned decrees (search a case number there for the imaged document). On this site: the district's full legal picture →
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 1,492 AF. Its most recent year on record, 2025, came in at 1,763 AF — 118% of that, and 10th lowest of the 15 years with a recorded volume.
| Year | Diverted (AFA volume: one acre covered a foot deep, about 326,000 gallons -- roughly a suburban household's outdoor use for a year.) | Compared with its own record | Days recorded | Peak (cfs) |
|---|---|---|---|---|
| 2009 | 1,162 | 5th lowest of 15 · 78% of median | 53 | 31.0 |
| 2010 | 1,657 | 9th lowest of 15 · 111% of median | 60 | 36.0 |
| 2012 | 495 | 2nd lowest of 15 · 33% of median | 67 | 19.1 |
| 2013 | 1,004 | 3rd lowest of 15 · 67% of median | 95 | 17.5 |
| 2014 | 3,094 | 15th lowest of 15 · 207% of median | 55 | 32.6 |
| 2015 | 2,222 | 12th lowest of 15 · 149% of median | 72 | 18.0 |
| 2016 | 1,863 | 11th lowest of 15 · 125% of median | 78 | 20.0 |
| 2017 | 1,105 | 4th lowest of 15 · 74% of median | 63 | 25.3 |
| 2018 | 2,472 | 13th lowest of 15 · 166% of median | 73 | 32.9 |
| 2019 | 3,000 | 14th lowest of 15 · 201% of median | 39 | 43.8 |
| 2021 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2022 | 1,436 | 7th lowest of 15 · 96% of median | 60 | 20.0 |
| 2023 | 1,492 | 8th lowest of 15 · 100% of median | 45 | 18.0 |
| 2024 | 1,337 | 6th lowest of 15 · 90% of median | 44 | 18.0 |
| 2025 | 1,763 | 10th lowest of 15 · 118% of median | 62 | 16.2 |
Trends for this structure
Recorded use shows no clear trend over its last 15 recorded years — which is itself worth knowing.
How good is our record of it?
Grade B (7/10 points) — the components below are the finding; the letter alone is not.
The rubric, component by component
| Check | State | Detail |
|---|---|---|
| identity | complete | name, type, and water source all on file |
| decreed rights | on file | 4 right(s), seniority decoded |
| diversion record | present | 2952 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 19% of the irrigation seasons in 1953-2025 carry measured days |
| published-record stability | stable | no upstream revisions recorded against this structure |
Advisory reading aid on public data — not an administrative or legal conclusion, not a title opinion, and not a substitute for DWR administration or an engineer's analysis. Methodology review status is disclosed at hydrohistorian's basin pages.