How Long Does It Take to Plow a Parking Lot?

Quick answer

• An open 1-acre lot, 2 inches: about 23 minutes for one truck with an 8-foot effective blade, or 2.6 acres an hour. That is the fast end; with the 20 to 25% buffer BOSS says to include, about 27 to 29 minutes.
• A broken-up 40,000 sq ft lot, 2 inches: about 68 minutes, or 0.81 acre (35,100 sq ft) an hour.
• The open lot in 4 inches: about 38 minutes, because you use less of the blade and drive slower.
• The formula: passes × (seconds per pass + seconds per turn), plus the stacking, obstacle and cleanup minutes.
• Walkways and de-icing are separate jobs: time and price each on its own.

What decides how long a parking lot takes to plow?

• Effective width. What the blade clears in one pass, which is less than its length when it is angled: about the length times the cosine of the angle. Fisher lists its 9-foot HD2 straight blade at 8 feet 1 inch of plowing width at full angle, and BOSS says its 98-inch V-plow clears about 85 inches at 30 degrees.
• Snow depth. Deeper snow means less blade per pass and a slower truck. Western’s guide says to use the whole blade in about 2 inches and three-fourths of it in about 4. BOSS puts speeds at 8 to 14 mph for 2 inches or less, 5 to 10 mph for 4 to 6 inches, and 3 to 7 mph beyond 6 inches.
• Pass length and turns. Every pass ends with raising the blade, turning and lining up again, which BOSS puts at 15 to 30 seconds a turn. Short runs mean more turns.
• Stacking. Pushing the snow to the edges and building stacks, which BOSS puts at 5 to 15 minutes a lot, depending on how much snow and how much room.
• Obstacles. SIMA’s 2025 standard lists cart corrals, dumpsters, islands, bollards, speed bumps and parked vehicles among the obstacles a site assessment should cover; each one slows the truck.

How do you work out the time for one lot?

1. Measure the area you plow, not the property: leave out the buildings, planted islands and walks.
2. Pick the effective width of the blade at the angle you plow, and cut it for deeper snow.
3. Pick the pass length: the average unbroken run. On an open lot it is the long side; on a lot with islands, the run between them.
4. Count the passes: area ÷ (effective width × pass length), rounded up.
5. Time one pass: pass length ÷ speed. In feet, mph × 1.467 is feet a second. In metres, km/h ÷ 3.6 is metres a second.
6. Add a turn to every pass, then add the stacking, obstacle and cleanup minutes.

How long does an open 1-acre lot take?

About 23 minutes. These are example inputs, inside the sources’ ranges where they give one, so use your own: an open lot 264 by 165 feet (80.5 by 50.3 m) with no islands and room to stack along one side; one truck with a 9-foot straight blade at full angle, taken as 8 feet (2.44 m) effective (Fisher lists 8 feet 1 inch; the inch is overlap); 2 inches (5 cm) of snow, so the whole blade; 8 mph (12.9 km/h), the bottom of BOSS’s 8 to 14 mph for light snow, because a 264-foot run is short; passes the long way, 20 seconds a turn, 5 minutes of stacking and 3 minutes of cleanup.

How long does a broken-up 40,000 sq ft lot take?

About 68 minutes, on less pavement than the open acre. The example inputs: 40,000 sq ft (3,716 m²) of lot, split by 6 planted islands into runs that average 100 feet (30.5 m), with 4 cars parked overnight and stacking room only at the back. The same truck and blade, 8 feet (2.44 m) effective, in 2 inches (5 cm). 5 mph (8 km/h), below BOSS’s light-snow range, because BOSS says lots with islands, light poles and curbs need slower speeds. 30 seconds a turn, the top of BOSS’s range; 12 minutes of stacking; 1.5 minutes to clean around each island; 2 minutes for each parked car; and 3 minutes of cleanup.

Why do short passes take so much longer?

Because the turns don’t get shorter. Driving an 8-foot blade over an acre at 8 mph takes about 7.7 minutes whatever the layout; what changes is how many times you stop and turn. With the open lot’s truck, 20 seconds a turn and nothing else counted:

Why do acres-per-hour figures disagree?

Because one efficiency factor has to stand in for very different amounts of turning. BOSS gives the formula as effective width (ft) × speed (mph) × 5,280 ÷ 43,560 × an efficiency factor, starting at 60 to 80%, which it says accounts for turning, obstacles, travel time, snow stacking and operator delays: 7 feet at 10 mph is about 8.5 acres an hour before the factor and about 6 after a factor of 0.7. The same page says contractors typically target 1 to 2 acres an hour per truck on mixed lots, and its calculator says most parking lot setups land between 1 and 3 acres an hour.

The FAA’s airport equipment circular, dated September 24, 2014, uses 70 percent at airports, for slowing down and changing course at runway ends, back-and-forth clearing on stub and connector taxiways, overlap, spillage and poor visibility. In the table above, the blade moves forward about 30% of the time on 100-foot passes and about 77% on 800-foot ones.

BOSS’s Step Five also counts turns and stacking on their own, and its FAQ says to add stacking and tight spaces on top. So set the formula against this page’s passes and turns alone: with this page’s inputs and 0.7, 11 minutes against 15 on the open lot and 16 against 36 on the broken-up one. A factor near 0.7 fits long passes; on 100-foot runs the turns take more of the time than it allows for.

SIMA uses the words differently: its glossary’s production rate is the time to do a specific area with a specific resource, such as a 2-acre lot with an 8-foot straight plow, and its efficiency factor is a multiplier on that rate for a lot’s layout, topography and obstacles: 100% for a lot with no obstructions, 90% for moderate ones. A production rate measured on your own lots is the number to trust most.

A US cost guide we read says a small, open lot may take 30 to 60 minutes with one truck and a 1- to 3-acre property often takes 1 to 3 hours, without saying what a visit includes.

How much longer does deeper snow take?

On the open lot, about 67% longer in 4 inches. Western says to use about three-fourths of the blade in 4 inches, so 6 feet (1.83 m) effective, and BOSS puts 4 to 6 inches at 5 to 10 mph, so 5 mph (8 km/h), the slow end. BOSS’s depth table puts 2 to 4 inches at 8 to 12 mph, so 4 inches sits on the line; at 8 mph the same lot takes about 32 minutes. Stacking goes from 5 to 9 minutes (an example input of 2 more for each inch); the turns and cleanup stay the same.

How do you use lot time to bid and plan routes?

• The price of a push: hours on the lot times your cost per operating hour (plow truck cost per hour), plus margin; the plowing price guide covers per-push and seasonal prices.
• The route: add the drive between sites. SIMA calls the time to service a site, area or route once its cycle time; the route planning guide covers the order.
• The promise: the contract’s completion time, such as SIMA’s example “clear by 7 a.m.”, has to fit the whole route’s cycle time, not one lot’s.
• De-icing is its own visit: spreading takes its own time and has its own price, with the salt included in the price unless you list it separately. A storm that needs both can be billed for both; on a per-event contract that prices de-icing separately, each is its own line (lot salting guide).
• Measure before you bid: two lots with the same area can take very different times, so walk each one and count its islands and stacking room (commercial bidding guide).

How do you measure time per lot in Icey Software?

We make Icey Software. On each site’s service map you trace the lot on satellite imagery and mark each area Driveway, Parking, Walkway or Sidewalk, and the map shows the measured area in square feet.

Field Mode has one-tap job timers: the crew taps Start when they begin at a site and Complete when they finish. With no signal, the taps are saved on the phone with their times and sync later. Each visit shows its time on site and the last visits at that site with how long each took, and each site’s reports page shows the average time per completed visit.

Start to Complete times everything the crew does between the two taps, not the drive. The measured area adds up every area on the map, walks included, so divide only the parking’s area by a plowing visit’s minutes: that is your own production rate for the lot, in place of the examples above. Every completed visit also makes a site report. Free forever up to 10 sites and 5 crew. Every feature.

Sources

• BOSS Snowplow: How to Calculate Snowplow Productivity Per Hour in 7 Steps, published July 29, 2026, updated October 19, 2026, checked November 7, 2026: effective pass width and the 98-inch V-plow at 30 degrees; speeds by snow depth, in the steps and the depth table; 15 to 30 seconds a turn; 5 to 15 minutes of stacking and a 20 to 25% buffer; spreader refill stops adding time to a route; the productivity formula, its 8.5 and 6 acre example, the 60 to 80% factor and what it accounts for; the FAQ’s extra time for stacking and tight spaces; the 1 to 2 acre target for mixed lots; and the calculator’s 1 to 3 acres for parking lots and more than one pass per lane past about 8 inches. BOSS is in Iron Mountain, Michigan (US).
• Western: How to Efficiently Plow a Parking Lot, created June 1, 2016, checked November 7, 2026: the whole blade in about 2 inches and three-fourths of it in about 4; clearing along the buildings first; long, straight passes; checking for clumps and hard pack before leaving.
• Fisher: HD2 straight blade, checked November 7, 2026: the 9-foot blade’s plowing width at full angle, 8 feet 1 inch.
• FAA Advisory Circular 150/5220-20A, Airport Snow and Ice Control Equipment, dated September 24, 2014, checked November 7, 2026: the 70 percent equipment efficiency factor and what it allows for; the effective cutting edge of an angled blade. It is US guidance for airports, not parking lots.
• SIMA: Snow & Ice Management Standard Glossary of Terms, updated December 1, 2017, checked November 7, 2026: production rate, efficiency factor, cycle time and completion time.
• SIMA-10-2025, Standard Practice for Procuring and Planning Snow and Ice Management Services, published June 2025, checked November 7, 2026: the obstacles a site assessment covers, and a site map with the areas approved for stacking.
• LatestCost: parking lot snow plowing cost, no date shown, checked November 7, 2026: a small, open lot in 30 to 60 minutes and a 1- to 3-acre property in 1 to 3 hours, for US commercial properties.