Rockwood Retaining Wall
Master Plans Approved by St. Louis County

You will need a permit for any retaining wall construction in the unincorporated areas of St. Louis County and in Municipalities that are contracted with St. Louis County for building plan review and inspections services if any of the following conditions apply.

1) If you would like to construct a retaining wall 3’ or taller you will need a retaining wall building permit. Retaining wall construction under 6‘ can be permitted using these Rockwood master plans.  If you wish to construct a retaining wall 6’ or taller you will need an engineered set of retaining wall plans.

2) If the retaining wall you wish to construct is taller than 2’ and it holds a surcharge load such as a driveway, garage, home or swimming pool or similar structure

3)If the retaining wall you wish to construct is equal to or less then its height from the property  line.

4) If the retaining wall you wish to construct has a fence or a guardrail on it that exceeds 6’ total height from the grade at the front of the retaining wall to the top of the fence.

It is very important that any retaining wall you wish to construct does not cause damming or ponding and does not affect or block existing swales and water drainage paths.

St. Louis County Master Plan Construction Drawings for the
Rockwood Retaining Wall Classic Block

This Rockwood Retaining Walls Master Plan was paid for by Rockwood Retaining Walls & Lemay Concrete Block. This St. Louis County Master Plan was engineered by Leo Turek at Brucker Engineering.

These Rockwood Master Plans are approved for residential retaining wall construction in
St. Louis County and all municipalities that contract with St. Louis County.

It is very important to follow the approved Rockwood Master Plan in the construction of your Rockwood Retaining Wall

It is very important that all utilities are marked before any retaining wall excavation begins.

Geo-grid table Typical Cross section for a Rockwood Retaining Wall 
-- Level retaining wall with clean rock backfill & no surcharge. --
Approved geo-grid for Rockwood retaining wall construction in St. Louis County.

It is very important to follow the proper geo-grid installation when constructing your retaining wall.

Geo-grid table-3:1 slope, clean rock backfill, no surcharge.
Approved geo-grid for Rockwood retaining wall construction in St. Louis County.

Geo-grid table-Level, clean rock backfill, 200 psf live load surcharge
Approved geo-grid for Rockwood retaining wall construction in St. Louis County.

Geo-grid table-level, soil backfill, no surcharge
Approved geo-grid for Rockwood retaining wall construction in St. Louis County.

Geo-grid table- 3:1 slope, soil backfill, no surcharge
Approved geo-grid for Rockwood retaining wall construction in St. Louis County.

Geo-grid -level, soil backfill, 200 psf live load surcharge
Approved geo-grid for Rockwood retaining wall construction in St. Louis County.

Geo-grid table -tiered, level, clean rock backfill, no surcharge
Approved geo-grid for Rockwood retaining wall construction in St. Louis County.

Geo-grid Table - 3:1 Slope, Clean Rock Backfill, No Surcharge
Approved geo-grid for Rockwood retaining wall construction in St. Louis County.

Geo-grid Table - Table - Tiered Level, Clean Rock Backfill, 200 psf Live Load Surcharge
Approved geo-grid for Rockwood retaining wall construction in St. Louis County.

Typical Rockwood Classic Block Construction Details

Geo-grid Details For The Construction Of  A Rockwood Classic Retaining Wall

How to install your Geo-grid When Constructing a Rockwood Retaining Wall Classic Block Wall With a Concave Curve 

How To Construct a Rockwood Retaining Wall using a Convex Curve, Outside Corner & Inside Corner.