Western Water Data

Routt County, Colorado — water rights summary

Seniority, absolute versus conditional water, and decreed uses for all 5,756 water rights on record in Routt County, taken from the state's own records. Priority dates run from 1879-04-01 to 2025-01-31.

At a glance

5,756water rights on record
94,604acre-feet absolute (perfected)
1,943,901acre-feet conditional (decreed, not yet perfected)
6.8%of rights carry a conditional portion

CFS on record: 6,815.0 absolute · 3,420.1 conditional. Flow (CFS) and volume (AF) are never added together.

Risk: absolute vs conditional

Worth knowing: Routt County has about 20.5x more acre-feet decreed as conditional than as absolute. Conditional water is decreed on paper but not yet put to beneficial use. A buyer or lender who does not separate the two is valuing a different asset than the one on the ground.

Seniority by era

In a dry year the oldest rights are served first. This is how Routt County's rights are distributed.

EraRightsShare
pre-190063711.1%
1900-19491,59827.8%
1950-196997016.9%
1970-19991,91733.3%
2000+63411.0%

What the water is decreed for

Decreed useRights
Stock2,995
Irrigation2,820
Domestic1,873
Fishery884
Wildlife874
Recreation842

The ten most senior rights on record

Ranked by the state's own priority administration number, the figure DWR uses to order rights by seniority.

PriorityStructureSourceAmount UsesVerify
1881-10-20MARSHALL ROBERTS DITCHYAMPA RIVER8.78 CFSIrrigationstate record
1881-10-20WILLIAMS IRRIG DITCHYAMPA RIVER2.52 CFSIrrigationstate record
1882-05-01TOWN OF HAYDEN INTAKE PIPELINEYAMPA RIVER0.36 CFSMunicipal, Commercial, Industrial, Recreation, Fire, Domesticstate record
1882-05-01WALKER IRRIG DITCHYAMPA RIVER8.39 CFSIrrigation, Municipal, Commercial, Industrial, Recreation, Fire, Domesticstate record
1883-03-30BROCK DITCHYAMPA RIVER4.5 CFSIrrigationstate record
1883-04-15BURBACK PUMPING PLANTYAMPA RIVER0.36 CFSIrrigationstate record
1883-04-15SHELTON DITCHYAMPA RIVER6.69 CFSIrrigationstate record
1883-04-15YOAST PUMPING PLANTYAMPA RIVER0.45 CFSIrrigationstate record
1883-04-20CLYDE DITCHEGERIA CREEK2.7 CFSIrrigationstate record
1883-05-25FIX DITCHBEAR RIVER1.2 CFSIrrigationstate record

Need this for a deal?

This page is the summary. The full file for Routt County covers every one of the 5,756 rights, with its priority date, seniority number, absolute and conditional amounts, decreed uses and a link to each official record, as a spreadsheet.

Buying, lending on, or listing irrigated ground here? Ask for the county file, or for a single property's water summary. The first one is on me.

erik@westernwaterdata.com

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Records last updated 10 September 2026.