Hydrohistorian

← My Water  ·  Print / save as PDF

MANHART DITCH

Structure dossier · WDID 0700614 · DITCH · RALSTON CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 23:01 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (4ab2507) — 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.

Current administration

● Junior rights called out — call at CLEAR CR PLATTE RIVER D (CLEAR CREEK, priority 1861-11-01).

● Junior rights called out — call at FARMERS INDEPENDENT DITCH (SOUTH PLATTE RIVER, priority 1865-11-20).

Which of its rights are out of priority?

Under today's controlling call (CLEAR CR PLATTE RIVER D, priority 1861-11-01): 35 of this structure's 41 rights are out of priority now (call list is 12 days old). (10 call(s) state no district and sit outside this one — not judged, not assumed.) In the 5 past years most like this one (2023, 2021, 2025, 2024, 2020), 7 of the rights shown below were out at least one week in at least one analog year.

Right (priority)NowAnalog years outMajority out by
1860-02-25 3708 ● in priority 0 of 5 —
1860-05-16 3789 ● in priority 0 of 5 —
1860-05-31 3804 ● in priority 0 of 5 —
… 1 more right between these …
1860-08-31 3896 ● in priority 4 of 5 2026-10-18
1861-05-02 4140 ● in priority 4 of 5 2026-10-18
1862-06-01 4535 ● out 4 of 5 2026-09-06
1862-06-14 4548 ● out 4 of 5 2026-09-06
… 30 more rights between these …
1999-12-21 54776 ● out 5 of 5 2026-08-09
2000-12-28 55149 ● out 5 of 5 2026-08-09
2016-12-31 60996 ● out 5 of 5 2026-08-09
How this table is built, and what it is not

“Now” compares each right's admin number with today's most senior applicable active call. The outlook uses flows at MANHART DITCH around 2026-08-09 (the newest reading on file) — currently 2200% of that gage's own median for this window — to pick the 5 most similar past years with complete administration records (2004–2026). Only calls that verifiably apply count: DWR's own district statements in the call's set comments, a caller located in this district, or — on the same stream, where DWR records both stream miles (measured from the mouth) — a caller DOWNSTREAM of this structure. An upstream senior cannot demand water this diversion never deprives it of. Calls that state nothing and sit elsewhere are counted as unjudged rather than assumed, which also means the verified record is shorter than the raw one: early calls rarely state districts. For each week it finds the most senior call then in force; a right is out in that week exactly when that call is senior to it, which is why one line prices every right and juniors can be out while seniors keep diverting. “Majority out by” is the first week out in more than half the analog years. A frequency among named historical years, not a probability from a model, and not a forecast of what the division engineer will do. It says how often years whose flow resembled this one were under a call senior to this right in a given week. Snowpack, storage, and the actual administrative decisions of a given season are not modelled. Check the analog years listed: if they do not resemble this year to you, the outlook does not either.

Where it sits in line

Priority 1860-02-25 — 10th most senior of the 1815 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: LINDSTROM NO 2 DITCH (1860-02-25). Immediately behind: ROCKY MOUNTAIN DITCH (1860-02-25).

On RALSTON CREEK at river mile 57.2, it is 24th of 24 down the reach. Immediately upstream: DORY LAKE INLET DITCH. Nothing modelled downstream of it on this reach.

Position on the modelled network, not a claim about whose water this is — a stream carries water from many rights at once, and diverted water returns to it.

Decreed rights (42)

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. UnitsUsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on.Case
3708.01860-02-251884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLD
3789.01860-05-161884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
3804.01860-05-311884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
3835.01860-07-011884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
3896.01860-08-311884-10-04 0.70270.0 CSTOIRRMUNCOMINDRECFISFIRDOMAUG
4140.01861-05-021884-10-04 0.00.0 CSTOIRRMUNCOMINDRECFISDOMAUGWLD
4535.01862-06-011884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
4548.01862-06-141884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLD
4554.01862-06-201884-10-04 0.17570.0 CSTOIRRMUNCOMINDRECFISFIRDOMAUG
4568.01862-07-041884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLD
4896.01863-05-281884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
4919.01863-06-201884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
5279.01864-06-141884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLD
5295.01864-06-301884-10-04 8.8770.0 CSTOIRRMUNCOMINDRECFISFIRDOMAUG
5538.01865-02-281884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
5592.01865-04-231884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
5614.01865-05-151884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLD
5615.01865-05-161884-10-04 0.00.0 CMUNALL
5785.01865-11-021884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLD
7449.01870-05-241884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
8127.01872-04-011884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
8176.01872-05-201882-06-02 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
10184.01877-11-181884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
10546.01878-11-151884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
11647.01881-11-201884-10-04 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
11841.071841869-09-011900-12-19 0.00.0 CMUNALL
13240.01886-04-011895-10-09 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
15895.071841869-09-011918-08-02 0.00.0 CIRRMUNCOMINDRECDOMAUGWLDALL
16549.01895-04-231895-10-09 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
16718.081271872-04-011936-05-13 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
16718.101841877-11-181936-05-13 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
16718.15681892-12-051936-05-13 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLD
19055.01902-03-041936-05-13 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
20281.01905-07-121936-05-13 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
20890.190551902-03-041926-06-21 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLDALL
50565.01988-06-101988-12-31 0.00.0 AIRRMUNCOMINDRECFISDOMAUGWLD
50565.01988-06-101988-12-31 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLD
50768.01988-12-301988-12-31 0.00.0 CIRRMUNCOMINDRECFISDOMAUGWLD
52586.01993-12-221993-12-31 0.00.0 CSTOIRRMUNCOMINDRECFISDOMAUGWLD
54776.01999-12-211999-12-31 0.00.0 CMUNALL
55149.02000-12-282000-12-31 0.00.0 CMUNALL
60996.02016-12-312016-12-31 0.00.0 CMUN

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 291 AF. Its most recent year on record, 2025, came in at 377 AF — 130% of that, and 11th lowest of the 15 years with a recorded volume.

This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.

YearDiverted (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 recordReleased (AF)Days recordedPeak (cfs)
2011 269 7th lowest of 15 · 92% of median — 145 6.6
2012 570 12th lowest of 15 · 196% of median — 145 4.9
2013 374 10th lowest of 15 · 128% of median — 192 7.5
2014 77 2nd lowest of 15 · 26% of median — 67 1.9
2015 47 1st lowest of 15 · 16% of median — 18 1.9
2016 190 6th lowest of 15 · 65% of median — 23 7.5
2017 1,099 15th lowest of 15 · 378% of median — 182 11.4
2018 291 8th lowest of 15 · 100% of median — 43 5.4
2019 96 3rd lowest of 15 · 33% of median — 12 6.4
2020 303 9th lowest of 15 · 104% of median — 92 4.3
2021 186 5th lowest of 15 · 64% of median — 128 1.6
2022 704 14th lowest of 15 · 242% of median — 346 6.6
2023 594 13th lowest of 15 · 204% of median — 338 8.1
2024 99 4th lowest of 15 · 34% of median — 242 2.7
2025 377 11th lowest of 15 · 130% of median — 211 7.1

How good is our record of it?

Grade A (10/10 points) — the components below are the finding; the letter alone is not.

The rubric, component by component
CheckStateDetail
identity complete name, type, and water source all on file
decreed rights on file 42 right(s), seniority decoded
diversion record current 14843 measured days, newest 283 day(s) before the data's end (DWR publishes ~1 year in arrears)
record continuity continuous 97% of the irrigation seasons in 1954-2025 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.