Harbor Fullerton Concrete saws the failed bay out on its own joint, digs the clay horizon out from beneath it and repours 4 inches, with the Engineering encroachment permit taken out in our name.
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The walk between your lawn and the curb
Ask who owns the walk in front of a Fullerton house and you get two answers, both true. Under Streets and Highways Code section 5610 a lot owner keeps the footway in front of it in repair. Street Maintenance also maintains public sidewalks along 285 miles of city streets and takes reports on (714) 738-6897, a supervisor inspects, the spot joins a priority schedule ranked by severity and nearness to a school, and funding covers only so many a year. Ring the city before paying anybody.
Harbor Fullerton Concrete has worked from the Harbor Boulevard yard since 2021, and Grant Yoshida runs a straightedge over the whole frontage before a figure is written. What he is reading for is whether a root did it at all. Under most of the city the sandy top foot lies on a horizon close to 40 percent clay, and a 5-foot bay of unreinforced concrete has nothing to span that with, so it steps at the joints with no tree anywhere near it.
We hold the C-8 for concrete, and liability insurance on every job covers the crew on your frontage. What a public walk adds is the encroachment permit, taken out at the Engineering counter upstairs in City Hall on Commonwealth Avenue, with bays built to city standards and the Green Book. We arrange the preconstruction meeting and give Underground Service Alert its two working days. Every bay is handed over with a written workmanship guarantee against defects in how it was built.
Warning signs
Quarter of an inch under a shoe is all it takes, and here that step tends to grow across a wet winter and ease off by August. That is clay swelling and shrinking rather than settlement, so it never comes back to flat and each cycle leaves the bay further out of line.
Concrete that knocks when you stand on one end is bridging a gap rather than bearing on ground. When the clay horizon dries down through the summer it pulls away beneath the middle of the bay, and an unsupported 4-inch panel with a car crossing it breaks straight across.
Joints exist so the walk can crack where you chose. A break running corner to corner through the middle of a panel means the ground beneath moved further than the joints were spaced to absorb, and once a bay is in three pieces the edges work against each other underfoot.
Cracks radiating from whichever corner sits nearest the trunk are a flat feeder root beneath the slab. Roots follow the damp line along the parkway irrigation and run just under the concrete, and if the tree is the city's that changes who you speak to first.
What's included
One bay or a whole property line, the specification does not change and none of it is charged separately. Every line is here because a public walk carries obligations a garden slab does not: a detail to build to, an inspector to satisfy, a tree the city may own.
The failed bay is sawn on the joint it already has, so it lifts out whole and the run either side of it stays put.
Where the dense clay sits shallow under the bay it is dug out and replaced, so the panel beds on stone that does not change volume.
Anything over an inch is cut square outside the form line and the face sealed, leaving the anchor roots holding the tree alone.
A ribbed root barrier goes in vertically on the trunk side, deep enough that the next root turns down under the bay instead of across.
Base is plate-compacted the full width of the bay, so winter water drains away under the panel rather than standing at the clay.
Ready-mix at 3,500 psi and a full 4 inches, broomed across the line of travel so the surface still grips on a damp morning.
Forms are set off the curb and the property line and the finished cross fall is leveled twice, kept under 2 percent either way.
The encroachment permit is applied for in our name and we stand the final inspection at your frontage, so you never see the counter.
Your options
Once a bay has moved there are four honest ways forward and one of them costs nothing but patience. They are laid out by durability, by the case each fits, by who has to sign it off and by how long your frontage stands fenced. Only two remove the cause.
| Option | Holds for | Right for | Sign-off | Frontage fenced |
|---|---|---|---|---|
| New bay poured | 30 to 40 years | A bay stepped, rocking or broken up | Encroachment permit and a final inspection | 1 to 2 days, then a week off it |
| On the city schedule | 30 to 40 years | A hazard you can live beside for now | The city inspects and schedules it | Nothing until your turn comes up |
| Grinding the lip | 1 to 2 years | Clearing a trip hazard before a sale | None for a shave under an inch | An hour, use it the same morning |
| Lifting the bay | 5 to 10 years | A dropped bay with no root beneath | None, since nothing is taken out | Half a day, walk on it that night |
Grinding and lifting both leave whatever moved the bay sitting exactly where it was, so over a clay horizon the step comes back inside a winter or two.
Local knowledge
Two facts decide almost every walk in this city: what the ground does through the year, and the fact that two thirds of the concrete was poured between 1950 and 1979.
Myford sandy loam runs under most of the city. It digs like sand for a foot, then meets a dense horizon near 40 percent clay, linear extensibility 6.4. That layer swells on the winter rain and gives it back over a summer averaging 84 degrees in July, and a 4-inch walk laid straight over it rides up and down at the panel edges. Nearer the old creek line through downtown it gives way to Metz loamy sand, which behaves. Your own frontage can be looked up on the USDA Web Soil Survey.
The second fact is age. Of 52,300 housing units here only about 1,500 predate 1940, while 33,200 went up in the three decades after 1950, so the walks failing now were poured 45 to 75 years ago and have had that many winters of movement. One corner of the city sits outside all of this: the Pico-Carhart streets are covered by rural design guidelines and were built with no curb and no walk at all, so there the question is whether anything goes in at all, and that one is Planning's.
Our process
Five stages, one crew, and a number written at your curb before any of it starts. The city gets rung first, the permit is ours to apply for, and the Engineering inspector is met at your frontage rather than left to you.
Grant Yoshida measures the step, counts the bays and opens a hole at the curb to find how far down the clay horizon starts.
A city tree is reported before anything else happens, since the Tree Inspector decides on pruning and the crew leaves it alone.
We apply at the Engineering counter on the second floor, then book the preconstruction meeting with the inspector 24 hours ahead.
Each bay is sawn on its joint and lifted whole, the clay is dug out where it sits shallow, then base goes in and forms come off the curb.
Pour, broom, tool the edges and cut the joints the same day. The inspector passes the run and the written guarantee follows.
What moves the estimate
The bay count sets the floor, and a bay on a postwar Fullerton street is about 5 feet square. After that the figure moves on what grows beside it, how deep we dig before the base is worth building on, and what has to keep getting past while forms are up.
Three bays and the crew is gone by the afternoon. A whole property line is two days of forming and a longer permit with a walking route on it.
Where the dense horizon lies close under the walk it comes out and stone goes back in its place, which is excavation and haulage, not concrete.
A city tree means a report, a Tree Inspector looking at it and a wait on their decision. Your own tree we can prune and barrier the same week.
Frontage on a school walking route, or with a bus stop on it, needs a marked way around, and the permit conditions set out what that must be.
None of this is worked off an aerial photograph. Coming out costs nothing, the figure is set down at your frontage, and ringing the city about a tree is our errand. (657) 500-3759 or send us a message.
Ask for a visit and the reply comes within 1 business day. What follows is a time at your own frontage, not a figure over the telephone. Bays are counted, a hole is opened to see what lies beneath, and the estimate is left with you in writing.
Reviews
Three frontages this crew has rebuilt in the past two years, from Google, Facebook and the BBB. Each describes a different piece of public frontage, so the band is three jobs and not one repeated.
“Four bays outside ours had stepped up and down for years and there is no tree on our parkway at all. Grant dug a hole and showed me the clay a foot down. They took it out, put stone back and repoured. Second winter now and it has not moved a millimeter.”
“A city liquidambar had pushed our walk up about an inch. They told us to report the tree first, which nobody else had said, and waited for the inspector. Then the roots were cut back, a barrier went in on edge and two bays were repoured. Level ever since.”
“Ours ran across the driveway approach and it had cracked right through where the van crosses. They did the walk and the approach as one job, sorted the paperwork at Commonwealth themselves and had the frontage back open in two days. My mother uses a frame.”
FAQ
Who carries the duty in law, what the city does once a bay is reported, where the permit comes from, what happens to the tree, and why walks in this city move with nothing growing near them.
The state answer and the city answer are different, so start with the city. Section 5610 of the Streets and Highways Code hands repair of a footway to whoever owns the lot it fronts. Fullerton, though, maintains public sidewalks along 285 miles of streets through its Street Maintenance Division, and it takes damage reports on (714) 738-6897. One phone call tells you which of the two situations you are actually in.
It may, but not on your timetable. A supervisor comes out and inspects, then the location goes onto a priority schedule worked out from how bad the damage is and how close it stands to a school, a church or another public building. Especially hazardous spots are dealt with straight away. Funding limits the number of sites done in a year, so ask where yours sits on the list before you decide to wait.
An encroachment permit from Public Works Engineering, not a building permit. The right-of-way here takes in the walk and the parkway behind the curb, and the counter is on the second floor of City Hall on Commonwealth Avenue. Work is built to city standards and the Green Book, dig alert is called two working days ahead, and a final inspection closes it. None of that touches a path inside your own boundary.
It removes the trip and leaves the cause untouched. A grinder shaves off up to roughly an inch of concrete, enough to take the trip out of the surface, but whatever raised the bay is still sitting under it. Beside a mature parkway tree the root keeps thickening; over a clay horizon the ground goes on swelling each winter. Either way the step is usually back inside two years.
Not by us, and usually not at all. Where roots have lifted a bay we cut the flat feeders clear of the new form line, seal the faces and stand a ribbed barrier upright between the trunk and the new concrete. Anchor roots holding the tree up are never touched. Where the tree is the city's, the Tree Inspector assesses it first and Fullerton's own position is that removal is never automatic.
Because of what is a foot underneath. Myford sandy loam covers most of the city: sand on top, then a horizon near 40 percent clay that swells with winter rain and shrinks back through the summer. A 5-foot square of unreinforced 4-inch concrete cannot span that, so it steps at the edges. Digging the clay out and bedding the bay on compacted stone is what stops it.
Any of them, which is not true everywhere in the region. July here averages 84 degrees and August 87, so summer is no obstacle. The morning marine layer matters more than heat does: damp air holds the surface back and the broom has to wait for it. The bay is then held damp seven days while strength comes up, which is the cure the Portland Cement Association sets out. Stay off it 24 hours, keep wheels away a week.
Yes, a written workmanship guarantee against defects in how it was built goes with every bay, and it reaches under the concrete as much as the surface: compaction, depth, the fall across it and where the joints were cut. The wording sits on the estimate you sign. Left outside are a bay pushed up by a tree the city puts in after we finish, and cracking where vehicles cross with no approach under them.
Service area
The eight towns nearest the Harbor Boulevard yard, with the distance out to each one. Frontage work is permitted separately in every town across north Orange County and over the county line, and lodging that paperwork wherever the blade ends up is included.
Four more things to have measured while the permit is open and the forms, the crew and a ready-mix truck are already booked to your address.
The drive repoured to meet the new bays at one continuous grade.
Risers up to a raised porch, formed while the frontage is open.
A low wall holding a hillside lot back off the walk, footed and drained.
A patio behind the house, poured on the same visit as the frontage.
Send the address over and we come back to you within 1 business day. Bays are counted at your frontage, a hole is opened to see what lies under them, the figure goes on paper there, and from that point the permit is our problem.