diff --git a/armi/reactor/blueprints/assemblyBlueprint.py b/armi/reactor/blueprints/assemblyBlueprint.py
index 2f6d332ea..8e13d1fcb 100644
--- a/armi/reactor/blueprints/assemblyBlueprint.py
+++ b/armi/reactor/blueprints/assemblyBlueprint.py
@@ -125,7 +125,7 @@ class AssemblyBlueprint(yamlize.Object):
         a list of axial mesh points in each block, a list of cross section identifiers
         for each block, and material options (see :need:`I_ARMI_MAT_USER_INPUT0`).
 
-        Relies on the underlying infrastrature from the ``yamlize`` package for
+        Relies on the underlying infrastructure from the ``yamlize`` package for
         reading from text files, serialization, and internal storage of the data.
 
         Is implemented as part of a blueprints file by being imported and used
diff --git a/armi/reactor/blueprints/blockBlueprint.py b/armi/reactor/blueprints/blockBlueprint.py
index 4c8e2540c..7d5c504ab 100644
--- a/armi/reactor/blueprints/blockBlueprint.py
+++ b/armi/reactor/blueprints/blockBlueprint.py
@@ -57,7 +57,7 @@ class BlockBlueprint(yamlize.KeyedList):
         contained within the block, where the keys are component names and the
         values are component blueprints (see :py:class:`~armi.reactor.blueprints.ComponentBlueprint.ComponentBlueprint`).
 
-        Relies on the underlying infrastrature from the ``yamlize`` package for
+        Relies on the underlying infrastructure from the ``yamlize`` package for
         reading from text files, serialization, and internal storage of the data.
 
         Is implemented into a blueprints file by being imported and used
diff --git a/armi/reactor/blueprints/componentBlueprint.py b/armi/reactor/blueprints/componentBlueprint.py
index dcd8b94ed..e1404cd2b 100644
--- a/armi/reactor/blueprints/componentBlueprint.py
+++ b/armi/reactor/blueprints/componentBlueprint.py
@@ -135,7 +135,7 @@ class ComponentBlueprint(yamlize.Object):
         Limited validation on the inputs is performed to ensure that the component
         shape corresponds to a valid shape defined by the ARMI application.
 
-        Relies on the underlying infrastrature from the ``yamlize`` package for
+        Relies on the underlying infrastructure from the ``yamlize`` package for
         reading from text files, serialization, and internal storage of the data.
 
         Is implemented as part of a blueprints file by being imported and used
diff --git a/armi/reactor/blueprints/gridBlueprint.py b/armi/reactor/blueprints/gridBlueprint.py
index 5b4286b17..0fe012454 100644
--- a/armi/reactor/blueprints/gridBlueprint.py
+++ b/armi/reactor/blueprints/gridBlueprint.py
@@ -152,7 +152,7 @@ class GridBlueprint(yamlize.Object):
         from within their blueprints file, including a name, geometry, dimensions,
         symmetry, and a map with the relative locations of components within that grid.
 
-        Relies on the underlying infrastrature from the ``yamlize`` package for
+        Relies on the underlying infrastructure from the ``yamlize`` package for
         reading from text files, serialization, and internal storage of the data.
 
         Is implemented as part of a blueprints file by being used in key-value pairs
diff --git a/armi/reactor/blueprints/isotopicOptions.py b/armi/reactor/blueprints/isotopicOptions.py
index 662027826..c4784fed2 100644
--- a/armi/reactor/blueprints/isotopicOptions.py
+++ b/armi/reactor/blueprints/isotopicOptions.py
@@ -177,7 +177,7 @@ class CustomIsotopic(yamlize.Map):
         from within their blueprints file, including a name and key-value pairs
         corresponding to nuclide names and their concentrations.
 
-        Relies on the underlying infrastrature from the ``yamlize`` package for
+        Relies on the underlying infrastructure from the ``yamlize`` package for
         reading from text files, serialization, and internal storage of the data.
 
         Is implemented as part of a blueprints file by being used in key-value pairs