Concrete in Middleton, where the groundwater sits close to the surface
The soil survey maps poorly drained river-bottom soils around Middleton, with water as shallow as about 27 inches. Slabs and footings here start with drainage.
Middleton is a growing Canyon County city of about 15,000 along the Boise River between Star and Caldwell, with Highway 44 running through it. Much of the ground around town is river bottom. The soil survey maps Moulton loam and fine sandy loam, which are poorly drained with a water table around 27 inches, and Notus soils, somewhat poorly drained with water at about 4 feet and occasional flooding. That's a different setting from Meridian's well-drained silt loams. A slab here can sit over saturated ground for part of the year, and a footing trench can fill with water before the concrete arrives.
So we build for water. Slabs get a deeper compacted gravel base, separated from the native soil with fabric where it's soft, and graded so runoff leaves the slab and the foundation. Footing trenches get dewatered before the pour, and we schedule footings for drier months where we can. RV pads and shop slabs on Middleton's larger lots get thicker sections and reinforcement. Because Middleton is in Canyon County, ACHD doesn't permit its streets; we confirm whether the city or a highway district owns the road at your approach, and Highway 44 is the Idaho Transportation Department's.
What we do in Middleton
Deeper drained bases
Extra compacted gravel, and fabric over soft ground, under slabs on river-bottom soils.
Dewatered footings
Trenches pumped dry before the pour; footing work scheduled for drier months where possible.
Drainage-first grading
Slabs sloped to move water away from foundations and off the lot.
RV pads and shop slabs
Thicker, reinforced slabs for trailers, RVs and shops on larger lots.
Right-of-way permits
The city, a highway district or ITD on Highway 44, confirmed for your address.
Repair and leveling
Slabs that settled over wet ground lifted or replaced.
Neighborhoods and roads we cover
- Old town Middleton
- Main Street (Middleton)
- Highway 44 (Middleton)
- Middleton Road
- Cemetery Road
- Willis Road
- Duff Lane
- Emmett Road (SH-16)
- Purple Sage Road
- Lansing Lane
- Boise River lots (Middleton)
- Middleton–Star line
Concrete services in Middleton
- Driveways, builder driveway replacement, approaches and sidewalks, RV and parking pads
- Patios, stamped and decorative concrete, walkways and steps, sport courts
- Shed and shop slabs, foundations and footings
- Repair and leveling, removal
Questions from Middleton homeowners
Why does my garage slab feel damp?
Groundwater can sit within a few feet of the surface on Middleton's river-bottom soils. A vapor barrier and a drained base under a new slab help; on an existing slab, grading water away is the first fix.
Can you pour footings in high groundwater?
Yes. We dewater the trench, pour on a firm base and get the inspection done the same morning. We prefer drier months for footing work here when the schedule allows.
Who permits approach work in Middleton?
ACHD covers Ada County only. In Middleton it's the city or a highway district for local roads, and the Idaho Transportation Department on Highway 44.
Does high groundwater make concrete more expensive?
Often by $1 to $2 per square foot for the deeper base, plus dewatering on footing jobs. We tell you at the estimate after digging a test hole.
Nearby: Star · Caldwell · Nampa · Eagle · full service area