West End & Downtown foundations

Council Bluffs' older core has many homes built before poured-concrete basements became standard. Their foundations may be brick, stone, or concrete block, and each has its own failure patterns.

What to look for

• Stone or brick: mortar washing out, loose units, and damp walls. The usual repair is repointing (repacking mortar joints) with a compatible mortar, plus drainage fixes. Hard modern sealers can trap moisture in old masonry.
• Concrete block: stair-step cracks and horizontal cracks around the 3rd or 4th course, plus water collecting in the hollow cores. See bowing walls.
• Additions: an addition often has a different foundation than the original house, so watch the seam between them.

Flood protection context

Much of the low-lying city sits behind the levee system, which the USACE says provides direct flood risk reduction to about 64% of the city's incorporated area.¹ Levees reduce river flooding but don't keep rain or groundwater out of an old foundation.