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Traffic heat map of Dolores County, Colorado: 42 miles of roads shaded from blue (light) to red (heavy traffic), busiest on US 491 and Glasgow Avenue

Dolores County, Colorado Traffic Counts

TrafficZoom tracks traffic on 42 road miles in Dolores County, Colorado, divided into 186 segments averaging 1,195 ft. The average road here carries 3,059 vehicles a day, 55% less than the Colorado average of 6,752. Built from cross-verified mobile and road-sensor data, these counts help you size up a retail site, plan logistics routes or assess infrastructure needs.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
Updated:
September 29, 2026
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Total Traffic Volume & Performance in Dolores County, Colorado

Traffic

The average number of vehicles that travel each day over any road in the road network.

vehicles per day3,059
Trucks

The percentage of the total traffic volume composed of heavy vehicles.

12.6%
Average travel time

The average time of travel averaged among all vehicles traveling on the road network.

42.4 min
Congestion ratio

The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.

10.7%
Drivers’ average age

Average age of residents in the geographic areas where the vehicle trips originated.

55.7 yrs
Drivers’ average income

Average income of residents in the geographic areas where the vehicle trips originated.

$72,025

The average monitored road in Dolores County, Colorado carries 3,059 vehicles per day. Across its 42 miles of monitored roads, that adds up to 110,041 vehicle-miles traveled per day (≈40.2 million per year). At 12.6%, the truck share runs above the 8.4% across Colorado: about 1 in 8 vehicles.

Longer trips than 81% of counties in Colorado

At 3,059 vehicles per day, the average monitored road in Dolores carries 55% less traffic than the state average of 6,752, suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. Across the whole network, that travel is less than 0.1% of Colorado's statewide total. 51% of counties in Colorado see more traffic than Dolores's 3,059 vehicles per day.

The average trip takes 42.4 minutes, 28% higher than the state level. On travel time, Dolores runs longer than 81% of counties in Colorado.

The congestion ratio of 10.7% is 32% lower, pointing to smoother traffic flow than the state level - travel times are easy to plan around for scheduled deliveries.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Dolores County, Colorado

Trafficvehicles per day5,093
Trucks12.8%
Average travel time42.2 min
Congestion ratio10.7%
Drivers’ average age55.6 yrs
Drivers’ average income$71,759

The vast majority of driving in Dolores County, Colorado happens on highways: 89% of all vehicle-miles. The average highway carries 5,093 vehicles per day, 505% more than the average non-highway road in the same area, which carries 842 vehicles per day.

Highways make up 47% of the monitored road miles (20 miles, 97 segments), so they carry more than their share: 98,153 vehicle-miles traveled per day (≈35.8 million per year).

A typical mix of freight and passenger traffic

Highway truck concentration here runs 14% higher than the state average, at 12.8%. The highway traffic mix is typical for Colorado: neither freight- nor commuter-dominated.

By truck concentration, highways here outrank 62% of counties in Colorado. By raw truck volume, Dolores carries fewer highway trucks than 60% of counties in Colorado.

non-highway traffic icon

Non-highway Traffic in Dolores County, Colorado

Trafficvehicles per day842
Trucks10.1%
Average travel time42.6 min
Drivers’ average age58.7 yrs
Drivers’ average income$79,166

Only a small share of travel in Dolores County, Colorado happens on local roads: 11% of vehicle-miles. The average non-highway road carries 842 vehicles per day.

Spread over 22 miles and 89 segments, 53% of the road network, local roads carry a lighter load per mile: 11,888 vehicle-miles traveled per day (≈4.3 million per year). Trucks make up 10.1% of non-highway traffic, about 1 in 10 vehicles.

Older drivers than 92% of counties in Colorado

The concentration of trucks on non-highway roads is 22% lower than on highways.

Trip origins here have lower average income than 52% of counties in Colorado. 92% of counties in Colorado have a younger driver population than Dolores.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Dolores County, Colorado, the peak hour concentrates about 7% of the day's traffic.

Dolores County vs. Colorado Traffic Comparison

Of the four measures, average daily traffic per road differs most: Dolores County runs 55% below the Colorado average. Its truck share, by contrast, is 49% above.

MetricDolores CountyColorado averageDifference
Traffic3,0596,752-54.7%
Truck % (Total Traffic)12.6%8.4%+49.4%
Truck % (Highway)12.8%11.2%+14.2%
Avg. Travel Time42.4 min33.2 min+27.8%

How Dolores County compares

Dolores County has a higher truck share than any nearby county

Set against the average of the 4 areas nearest to it, Dolores County moves 16.2% of the total daily travel and sees 34.0% longer typical trips; it has the fourth busiest roads of the five. Traffic volume here matches the areas around it, but more of that traffic is trucks - a difference in what routes through, not in how much.

Dolores County and the 4 nearest county-level areas by centroid distance, with the Colorado average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Dolores County3,05912.6%110,04142.4 min10.7%
San Miguel County, Colorado3,2128.1%186,25523.0 min9.2%
Montezuma County, Colorado3,75610.5%797,10930.4 min10.2%
La Plata County, Colorado3,9787.2%1,647,48129.0 min12.2%
San Juan County, Colorado2,7017.1%90,12944.2 min7.0%
Colorado average6,7528.4%N/A33.2 min15.7%

Dolores County ranked within Colorado

Dolores County sits in the bottom quarter of the Colorado field on highway travel volume, at #52 of 54.

Dolores County ranked among 64 county-level areas in Colorado (1 = highest); measures without data in every county rank a smaller field, down to 54.
MeasureDolores CountyColorado rank
Traffic volume (AADT)3,059#33 of 64
Highway vehicle-miles per day98,153#52 of 54
Truck share on highways12.8%#21 of 54
Highway trucks per day654#33 of 54
Average travel time42.4 min#13 of 64
Average driver income$72,025#34 of 64
Average driver age55.7 yrs#6 of 64

The two ends of this table sit far apart: #6 of 64 on average driver age, against #52 of 54 on highway travel volume.

Busiest roads in Dolores County, Colorado

Traffic concentrates on a few corridors: the three busiest roads average 2,694 vehicles a day, against 3,059 on the average road in Dolores County.

US 491 is the busiest road, at 5,771 vehicles a day, 684 of them trucks (11.8%). That is 3.8 times the next road, Glasgow Avenue (1,524). It also carries the most trucks.

Freight stands out on Railroad Avenue: trucks are 33.2% of the traffic there, against 12.6% county-wide.

CR H draws drivers from wealthier areas: their neighborhoods average $108,125 in household income, 50% above the county's $72,025.

CO 141 is a local road at heart: the median trip using it lasts 19.4 minutes, against 42.4 for the county.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1US 491Trunk road · 5,771vehicles684trucks · 11.8%
Road class
Trunk road
Congestion ratio
13.1%
Median trip time
40.4 min
Drivers’ median age
54.6 yrs
Drivers’ average income
$71,206

US 491 peaks at 5,771 vehicles a day, 89% more than the county average; trucks are 11.8% of it, below the county-wide 12.6%.

2Glasgow AvenuePrimary road · 1,524vehicles108trucks · 7.1%
Road class
Primary road
Median trip time
41.4 min
Drivers’ median age
58.5 yrs
Drivers’ average income
$61,338

Glasgow Avenue is a quieter road: its busiest stretch carries 50% less than the county average; trucks are 7.1% of it, below the county-wide 12.6%.

3CO 145Primary road · 787vehicles82trucks · 10.4%
Road class
Primary road
Median trip time
46.1 min
Drivers’ median age
60.3 yrs
Drivers’ average income
$61,338

Even at its busiest, CO 145 carries 74% less than the county average; trucks are 10.4% of it, below the county-wide 12.6%.

4Railroad AvenuePrimary road · 310vehicles103trucks · 33.2%
Road class
Primary road
Median trip time
30.0 min

Trips on Railroad Avenue are short, a median 30.0 minutes against 42.4 county-wide, so it mostly serves local errands and commutes.

5CR HTertiary road · 298vehicles17trucks · 5.7%
Road class
Tertiary road
Median trip time
31.8 min
Drivers’ median age
57.5 yrs
Drivers’ average income
$108,125

CR H is a quieter road: its busiest stretch carries 90% less than the county average; trucks are 5.7% of it, below the county-wide 12.6%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1US 491Trunk road · #1 by traffic5,771vehicles684trucks · 11.8%
2Glasgow AvenuePrimary road · #2 by traffic1,524vehicles108trucks · 7.1%
3Railroad AvenuePrimary road · #4 by traffic310vehicles103trucks · 33.2%
4CO 145Primary road · #3 by traffic787vehicles82trucks · 10.4%
5CO 141Secondary road · 282vehicles25trucks · 8.9%
Road class
Secondary road
Median trip time
19.4 min

Even at its busiest, CO 141 carries 91% less than the county average; trucks are 8.9% of it, below the county-wide 12.6%.

How to read these road counts
  • The first number is AADT, annual average daily traffic: the vehicles passing a point on an average day, both directions combined and trucks included. On a divided highway both carriageways are added together.
  • Traffic changes along a road, with more near interchanges and towns and less in open country. Every figure for a road describes its busiest stretch in the county, so the two rankings show the same numbers for the same road.
  • The second number is the trucks on that stretch, a part of its AADT. The bar splits the AADT into cars and light vehicles (blue) and trucks (amber).
  • See segment-level AADT for any road on TrafficZoom.

Data Sources & Methodology

The data presented on this page is derived from TrafficZoom's proprietary analytics platform, which aggregates and normalizes information from multiple sources, including:

Mobile device location data (anonymized and aggregated)

Road sensor networks and traffic counters

Historical traffic pattern databases

Public traffic count programs published by the

DoloresDepartment of Transportation

Demographic Baseline for O-D Modeling

U.S. Census Bureau
All metrics represent estimates based on statistical modeling and are intended for strategic planning purposes.
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Data current as of:
Q3 2026

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Counties near Dolores County

The same traffic breakdown for the areas closest to Dolores County, Colorado.

Need segment-level traffic data?

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