Embed Plates & Anchor Bolts in Utah
Embed plates and anchor bolts are the cast-in steel that lets a column, beam, or brace connect to concrete — set in the forms before the pour so the steel arriving weeks later lands where the drawings say. Grandview lays out, sets, surveys, and corrects anchorage for footings, piers, walls, and slabs across Utah County and Salt Lake County under Utah DOPL B100 license #14282236-5501.
When anchorage is the scope, not the steel
This page covers the interface between concrete and steel. Setting the members themselves lives on structural steel erection and steel beam & column installation; base fixity for a lateral system starts at moment frames & braced frames. Anchorage comes before all of those and decides whether they go smoothly.
Three situations bring this scope to us alone. A concrete crew is pouring footings and the steel package specifies rods and embeds someone has to template and hold through the pour. An engineer has added steel to an existing slab — a column on an old footing, a ledger for a metal deck bay — and the anchorage must be post-installed and inspected. Or the pour already happened, the rods are an inch off, and the erector is due Monday. That third one is the call we get most.
Anchorage also rides inside our foundation and structural concrete scopes when the same project carries the structural steel; the wider metalwork family is on the specialty hub.
What setting cast-in anchor rods and embeds involves
Anchor rods on most Utah projects are ASTM F1554 — Grade 36 for ordinary columns, Grade 55 or 105 where the engineer needs more capacity or a weldable rod — headed or hooked, with a specified projection so leveling nuts, base plate, and grout bed all fit. We build a template for each column group, drill it to the pattern, and double-nut the rods so they can’t drift when the vibrator hits the mix. The template is tied to the rebar cage and surveyed to column lines and elevation before anyone calls for concrete.
Embed plates are flat plates with headed shear studs or deformed-bar anchors welded to the back, cast flush into a wall, pier, or slab edge so a beam seat, gusset, or ledger angle can be welded to them later. They arrive already studded; our job is holding them flush and square in the form, screwed to the formwork face with studs projecting into the rebar. A plate recessed half an inch behind the concrete is a plate the ironworker can’t weld to.
Tolerance is the whole game: rod placement within a group is measured in eighths of an inch, and base plates are punched to match. So the sequence runs layout from control points, template set, pre-pour check with the special inspector when required, then an as-built survey of every rod and embed that goes to the fabricator so base plates are drilled to reality, not to hope.
Seismic design shapes these details. The Wasatch fault runs under Utah’s most densely built corridor — the Utah Geological Survey documents its capacity for large earthquakes — and base anchorage is where a frame’s overturning forces finally enter the concrete. That is why engineers specify ductile rod grades, deeper embedment, and supplementary reinforcement around the group — details that only work if the rods are where the model put them.
Post-installed anchors and fixing what moved
When steel attaches to existing concrete, or cast-in rods got bumped during the pour, the answer is a post-installed anchor. Adhesive anchors — threaded rod or rebar set in epoxy — carry the most load and hold up through Wasatch Front freeze–thaw cycling when the hole is drilled, cleaned, and filled to the manufacturer’s evaluation report. Wedge and undercut anchors install faster for lighter attachments. Adhesive anchors in tension typically require continuous special inspection and a certified installer.
Corrections follow a short decision tree. Slightly out of pattern: a slotted base plate with plate washers welded over the slots. Badly out or bent: cut, core, and set a post-installed replacement. Missing embed: core and adhesive-anchor a surface plate. Every fix gets a sketch, an engineer’s sign-off, and inspection before the column lands. Problems happen. Surprises should not.
What do embed plates and anchor bolts cost in Utah?
Anchorage is normally a small line in the steel budget. The expensive version is the one corrected after the pour: fixing one misplaced column group with engineer-approved post-installed anchors or a modified base plate commonly runs from several hundred to a few thousand dollars, plus the erector’s lost day. Ballpark planning numbers, not quotes.
- Galvanizing. Exposed base plates in a snow-and-salt zone get hot-dip galvanized rods, which add cost and lead time.
- Cast-in vs. post-installed. Per anchor, adhesive anchors with inspection cost more than cast-in rods.
- Cold-weather pours. Winter work means heated enclosures or blankets around the footing; anchorage in concrete that froze before curing is anchorage you will be fixing.
Questions we actually get
The concrete sub set our anchor bolts and they are off. Who fixes it?
We do, with the engineer. Send the as-built survey or photos with a tape in frame; we sketch the fix, get it approved, and have it inspected before the column arrives. Our connection retrofit page covers the broader version of this problem.
Can we drill and epoxy the anchors after the pour instead of templating them?
Sometimes, if the engineer designs it that way from the start. Adhesive anchors are legitimate structural anchorage, but they cost more per anchor, need continuous special inspection in tension, and cannot always reach the embedment a brace frame requires. For seismic base plates, cast-in rods remain the default.
How much should the anchor rods project above the concrete?
Whatever the base plate detail calls for — typically a leveling nut below the plate, the plate, a washer, and a full nut above with a thread or two showing, plus the grout bed. Too short and the nut will not engage; too long and it gets cut and re-threaded.
Do you need the steel shop drawings before setting embeds?
Yes, or at least the approved anchor rod and embed setting plans, which coordinate the fabricator’s patterns with the structural set. Setting embeds from the architectural grid alone is how plates end up six inches from where the beam seat needs them.
Send the setting plan
Anchor rod plans, an embed schedule, or a photo of the bolts that moved — we reply within a couple of hours during business hours, a day at most, with a straight read on sequence and budget. Our B100 license is verifiable at dopl.utah.gov.