Riverside Concrete Pro pours commercial lots 6 inches thick under the drive aisles, joints on a 15-foot grid, in weekend phases so no tenant of yours loses the whole lot at once.
5.0 Stars Rated by our customers · Google, Facebook and the BBB
Who this is for
A parking lot is not a large driveway. Cars do almost nothing to one; the damage comes from the handful of loaded vehicles that arrive every week, a box truck at the dock, a refuse truck swinging into the enclosure, a fire lane that has to carry an engine. Build the stalls for cars and the aisles and approaches for those, and a lot stops failing in the same three places.
Riverside Concrete Pro was founded in 2021 by Marco Delgado, who spent 15 years on Inland Empire flatwork crews first, and he runs the pour on every lot. Commercial ground in this city comes in two kinds: tilt-up warehouses and truck yards around Hunter Park, then older strip retail and small offices along the Iowa Avenue corridor. A lot in each takes a different beating.
Lots are built under a CSLB C-8 concrete license with liability insurance on every job. A new or reconfigured lot is filed as a building permit with the City of Riverside, and usually draws a grading and drainage review with it, because the surface you pour decides where a storm leaves the site. The work carries a written workmanship guarantee against defects in how it was built.
Warning signs
One square of ground takes a loaded truck turning, stopping and lifting on it every week. Asphalt shoves into a wave there and a thin slab cracks in a fan. The approach in front of an enclosure is the first part of any lot to give out, and it is a load problem, not wear.
A web of joined-up cracks across a drive aisle is the base underneath failing rather than the surface wearing. Water is getting down through it, the material below moves under every truck axle, and a seal coat hides that for one summer. The section is rebuilt, not patched.
An accessible stall and its access aisle have to sit inside a slope tolerance in every direction, and a lot that has settled or been overlaid rarely still does. This is the part of a site reached first by a complaint, it is checked with a level, and a re-stripe does not answer it.
A lot should be clear a few hours after a storm. Water still sitting in an aisle the next day means the fall has gone flat or reversed, and every hour it stands there it works into the joints and the base below. It also puts the site out of step with the drainage plan on file.
What's included
Standard on every commercial lot, with no add-ons. Each one answers something a lot has to do that a house slab never does: carry loaded axles, stay open for trade while it is built, and match a drawing an inspector holds.
We count what arrives, deliveries, refuse, fire access, and the aisles are designed around the heaviest of them rather than around cars.
Stalls at 5 inches, and drive aisles, dock approaches and the fire lane at 6, in a 4,000 psi mix specified for truck axle loads.
Class 2 aggregate base laid and compacted in lifts, with the compaction tested and recorded before a single form goes down on it.
Control joints sawn within 12 hours in panels no wider than 15 feet, set out so a line lands between two stalls and never through one.
Smooth steel dowels across every joint between one weekend pour and the next, so separate sections carry a loaded truck as one slab.
Accessible stalls, the access aisle and the path of travel to your door poured to slope tolerance and checked with a level before hand-back.
The surface is set to the grades the city's drainage review approved, and existing inlets are met at the elevations already on file.
The lot goes in section by section over weekends, with the order of work and the closed area agreed in writing before the first cut.
Your options
Four ways to surface a commercial lot here, set against how many years each stands, the site it suits, what keeping it costs you afterward and how much of your trading week it takes. All four want base that has been compacted and tested.
| Option | Lifespan | Best for | Upkeep | Time on site |
|---|---|---|---|---|
| Poured concrete | 30 to 40 years | Truck aisles, docks and enclosure approaches | Reseal the joints every 5 years | 2 to 4 weekends, 7 days curing each |
| Asphalt paving | 15 to 20 years inland | Large car-only lots with no delivery route | Seal coat every 3 years, overlay at 12 | 3 to 5 days, open again in 24 hours |
| Concrete aisles only | 20 to 30 years across the two | Retail sites where trucks keep to one route | Two surfaces on two schedules | About a week, phased by area |
| Concrete whitetopping | 20 to 25 years | Sound asphalt base that has only worn out | Reseal the joints every 5 years | 2 to 3 days, then 7 to cure |
Concrete costs most to lay and least to keep, asphalt is the reverse, and inland heat averaging in the mid-90s in July and August widens that gap over 20 years.
Local knowledge
Two things decide a lot in this city, and neither of them is the concrete: the heat the surface sits under from June to September, and which of Riverside's two commercial corridors it stands in.
Afternoons here average in the mid-90s through July and August and the asphalt surface runs far hotter than the air, so a loaded trailer left standing in one bay presses a dent that never comes back out. Concrete does not soften and needs no seal coat every third year. That is why dock aprons and enclosure approaches on warehouse sites are concrete even where the rest of the lot is black, and why a summer pour starts before first light and is kept damp the full seven days.
Around Hunter Park the sites are tilt-up warehouses with trailer traffic, so the aisles carry far more than the stalls do and the phasing has to work around shipping hours rather than around Saturdays. Along the Iowa Avenue corridor the lots are older strip retail whose tenants trade all weekend, so those go in on Sunday nights and Monday mornings, one bay at a time. Both are measured the same way and staged completely differently.
Our process
From the walk-round with whoever manages the property to the morning the last barrier comes off. One crew, one written figure, and the permit and drainage review filed by us before a saw touches the surface.
Marco Delgado walks the lot with you, counts the stalls and aisles and asks what arrives loaded and how often. The estimate is written that day.
Stall count, aisle widths and the accessible route are drawn and filed for permit and drainage review, and the closure order is agreed with you.
The old surface comes out and is hauled section by section, the subgrade is proof-rolled, and soft ground is dug out before base is brought in.
Base compacted in lifts and tested, forms and dowels set at the phase joints, then each section placed and finished inside its own closed window.
Joints sawn within 12 hours, the accessible route checked with a level, and each section handed back after 7 days with the written guarantee.
What moves the estimate
Square footage sets the floor. After that the number moves on how much of the lot carries trucks and how much of it has to keep trading while we work. Every estimate is measured and written on site.
Aisles, dock approaches and the enclosure pad go 6 inches with heavier steel; stalls go 5. The split between the two moves the figure most.
A lot poured in one closed week is one number. The same lot taken in weekend phases means more mobilizations and more doweled joints.
Asphalt broken out and hauled is straightforward. Failed base under it, or an old slab with steel through it, adds a day at the start.
Inlets reset, new falls to a reviewed plan, or an accessible route rebuilt to tolerance each add work that the square footage does not show.
No figure comes off an aerial photograph of a site. The walk-round costs nothing, the estimate is written on your lot, and we call back within 1 business day. (951) 584-0685 or send us a message.
Send the form or call, and someone rings you back within 1 business day to book a walk-round. We measure the lot, count what arrives loaded and write the figure while we are there, and nothing is owed if you take it no further.
Reviews
Reviews left on Google, Facebook and the BBB by the owners and managers of commercial sites we resurfaced. All three are about parking lots rather than about residential work.
“We run a warehouse near Hunter Park and the dock approach had shoved into waves that our trailers bounced through. Riverside Concrete Pro poured that end at 6 inches across a weekend and we did not miss a shipping day. Two summers on and there is no mark where the trailers stand.”
“Our strip center on Iowa Avenue had an accessible stall that was out on slope and we got called on it. They re-poured that stall and the access aisle, checked the whole path of travel with a level in front of me, and the work happened over two Sunday nights.”
“Sixty stalls behind a medical office and we could not shut the whole thing for even one day. They took it in four sections over four weekends, doweled the joints between them, and you cannot now tell where one pour stopped and the next one started.”
FAQ
Thickness, joints, phasing, permits, accessibility and the one part of the job we do not do, answered for a commercial lot in Riverside rather than for concrete in general.
Six inches under drive aisles, dock approaches, the fire lane and the pad in front of a trash enclosure, and 5 inches under car stalls. Depth follows the heaviest thing that crosses each area, because one loaded axle does more to a slab than a thousand cars do. Which area gets which depth is drawn on the plan and written into the estimate you sign.
On a 15-foot grid, in panels as near square as the layout allows, sawn within 12 hours of the pour. Concrete shrinks as it cures and will crack somewhere; the joint decides that it happens in a straight sawn line. Fifteen feet is the working spacing for a 6-inch slab, and the grid is set out so the lines land between stalls rather than across them.
Yes, by taking it in phases. The lot is divided into sections that can each be shut on their own, poured on a Friday night or a Saturday and left to cure through to the following weekend before traffic goes back on. Smooth dowels across the joint between phases tie the sections so a truck crosses them as one slab. The order and the closed area are agreed in writing first.
Yes. A new or reconfigured commercial lot is filed as a building permit with the City of Riverside, and it usually draws a grading and drainage review as well, since the paved surface decides where storm water leaves the site. Accessibility is looked at over the same counter. We prepare the drawings, file them and stand the inspections ourselves.
The stall, the access aisle beside it and the path of travel to your door all have to sit inside a slope tolerance in every direction, and how many accessible stalls you need follows from the total on the lot. It is the part of a site that draws citations most often, it is settled with a level and not an argument, so it is poured to the drawing and checked before hand-back.
For anything that carries trucks, yes, and the reason is heat rather than strength. Afternoons here average in the mid-90s through July and August and the asphalt surface runs far hotter than the air, so a loaded trailer standing still presses a dent into it. Concrete does not soften and wants no seal coat every third year. On a large car-only lot asphalt is still cheaper to lay, and that is the honest answer.
No. Striping, wheel stops, signage and bollards are a striping contractor's trade rather than a concrete one, and we would rather say so than subcontract it and add a margin. What we do is hand the slab over flat, clean and cured on the day a striper can work on it, seven days after the pour, with the joints set out so your stall lines can follow them.
Yes. Every lot carries a written workmanship guarantee against defects in how it was built, the compacted base, the depth poured in each area, the dowels at the phase joints and the joint spacing, with its terms on the estimate you sign. It does not cover surface wear, staining, or damage done by vehicles heavier than the loads the lot was designed around.
Service area
Commercial sites in the eight towns closest to our Chicago Avenue yard, with the distance beside each. Coverage runs to 20 towns inside 25 miles, and every lot is walked before it is priced.
Four jobs that sit on the same site as a lot and are measured on the same walk-round, one crew, one tested base under all of it, and a single written figure.
Footings for bollards, light poles and the walls of a trash enclosure.
The walk across your frontage, and the path of travel from stall to door.
The warehouse slab your lot feeds, poured flat enough for racking and forklifts.
Sawing out one failed panel, or a trench for a new drainage inlet.
Call or send the form and someone rings you back within 1 business day. The walk-round is free, the figure is written on your own site, and there is nothing owed if you go no further with it.