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Explanations And Classifications

Criteria and Evaluation

The significance of each inventory entry was evaluated by a professional architectural historian and was measured against the National Register Criteria for Evaluation. (Fig. 2). Properties were assessed in terms of their historical significance, architectural merit, environment and integrity before being placed in one of the rating categories (O, N, C, or NC explained below). In determining a resource's historical importance, consideration was given to its association with such things as the exploration and settlement of the area, industrial development, transportation of the lives of important people. Properties can be of national, state or local significance, thus it is possible that a property of outstanding local importance could be rated higher than an entry that was only remotely associated with state or national history.

Some properties though not associated with important people or events, may have been significant as good examples of particular architectural styles, or representative building types, or methods of construction. Resources important in this area could range from an outstanding example of the Italianate style or a simple regional housing type, to an iron truss bridge, or a planned landscaping feature. The location of an entry in relation to other structures, street placement, and landscaping, as well as the overall natural environment of a site also affects its rating.

In assessing integrity, an attempt was made to determine how much of the original architectural fabric remained. A property's rating may have been lowered if it experienced extensive alterations, such as the application of artificial siding, removal of trim or siding, later additions, changes to windows, or structural modifications. The relocation of a building from its original site often lowered its rating.


After consideration of these factors, one of the following ratings was assigned to each property.

Outstanding (O)
The "O" rating means that the property has enough historic or architectural significance that it is already listed, or should be considered for individual listing in the National Register of Historic Places. Outstanding resources can be of local, state, or national importance.

Notable (N)
A rating of "N" means that the property did not quite merit an Outstanding rating, but is still above average in its importance. Further research or investigation may reveal that the property could be eligible for National Register listing.

Contributing (C)
A "C" rating was given to any properties meeting the basic inventory criterion of being pre-1940, but that are not important enough to stand on their own as individually outstanding or notable. Such resources are important to the density or continuity of the area's historic fabric. Contributing properties can be listed on the National Register of Historic Places if they are part of an historic district, but would not usually qualify individually.

Non-Contributing (NC)
Properties rated "NC" were not included in the inventory unless they were located within an historic district. Such properties are usually either post-1950 or they are older structures that have been badly altered and have lost their historic character or they are otherwise incompatible with their historic surroundings. These properties are not eligible for the National Register.
Of the 2556 entries made in the Bloomington Inventory, 65 were rated Outstanding and 275 were Notable. These ratings should be viewed as advisory recommendation based on the information available to the surveyor at the time of the survey. Change in location, sensitive restoration, additional research, extensive physical damage, or inappropriate remodeling could affect the entry's significance and rating at a later date.