Pushing problems. Street creep can damage a foundation when concrete slabs in a driveway or road expand or move, pushing against the edge of the foundation.
If your concrete slab driveway and foundation is cracked or damaged, the problem may not actually be in your home. "Street creep" occurs when the road expands or moves, pushing against your foundation and creating pressures that causes cracks and compression.
If you have expansion joints that seem compressed, interior or exterior foundation cracks, or a garage floor pulling away from garage wall, you may be dealing with a street creep issue. Thrasher provides expert solutions to this problem, and we can help you repair your home.
We provide free, no-obligation foundation repair inspections in Lincoln, Omaha, Sioux City and throughout the nearby areas in Nebraska, Iowa, and Missouri. Call or e-mail us today to schedule an appointment!
Street creep is a common foundation problem that's caused by the thermal expansion and contraction of concrete streets and pavement surrounding a home.
Like many materials, concrete expands when it's hot and contracts when it's cold. Contractors place expansion joints in sidewalks, driveways and other exterior slabs so that temperature-induced expansion and contraction won't cause a slab to crack.
Expansion joints divide a large expanse of concrete into individual slabs that can expand and contract independently. Temperature fluctuations throughout the seasons will cause these joints to widen in the colder months and narrow during hot weather.
Problems with street creep begin to arise during the cold winter months, when the widened joints become filled with materials like sand or gravel.
As temperatures rise again during warmer weather, the concrete expands. But if joints have filled with sand and gravel, they can no longer absorb this movement. Instead, one slab will push against another.
Once they're filled with debris, expansion joints can no longer do their job. The entire expanse of concrete expands as a single unit, causing the street to "creep." Street creep exerts tremendous pressure at the edge of the concrete, where a driveway meets a garage slab or a house foundation wall.
Damage from street creep is a slow process - the elongation of a typical block-length concrete street is generally only a fraction of an inch each year. However, over time, the movement will add up to several inches, which will mean potentially serious damage to your foundation.
Street Creep can be detected by these four common signs:
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At Thrasher, we typically use a two-part process to repair foundation damage caused by street creep. Our structural technicians first install new expansion joints to help take pressure off of the foundation wall. We also use wall anchors to stop inward movement of the foundation walls.
Our GeoLock® Wall Anchor System is the ideal solution for your street creep problems. Designed by Supportworks, Inc., this street creep repair system is currently being used by hundreds of foundation contractors across the United States and Canada. It provides a warrantied solution for permanently repairing your foundation issue.
At Thrasher, we have warrantied solutions for repairing street creep damage to your foundation. To help you decide if our solutions are right for you, we offer free written street creep repair quotes throughout our NE, IA, and MO service area.
We serve Lincoln, Omaha, Sioux City, Council Bluffs, Bellevue, Grand Island, Kearney, Norfolk, Fremont, North Platte, and throughout the nearby areas. To schedule an appointment, contact us by phone or e-mail today!
The existing expansion joint between the driveway and garage is fully compressed.
Even when the joint appears wide enough at the surface, the concrete may still be in contact underneath. This means that when the street expands with heat, your driveway is being pushed into the rest of your home.
The foundation walls on either side of the garage door are being pushed inwards by the driveway slab.
This is a sign that when the concrete pavement expanded and lengthened, pushing into the concrete driveway, there was insufficient compression space within the expansion joints. The only place for the driveway slab to go was through your garage walls.
Gaps have formed behind the foundation walls on either side of the garage door as the garage slab is pushed rearward.
Installing new expansion joints in the driveway and installing wall anchors will restore your foundation walls to structural stability.
Basement walls or foundation walls are pushed out by the garage slab.
At this stage, the damage caused by street creep has lead to a potentially serious foundation issue. It's important to address this soon -- before the damage becomes any more significant.