What do the numbers on a Sanborn map mean?
What do the numbers on a Sanborn map mean?
This number represents the official designation for the block provided by the city or an arbitrary designation supplied by the Sanborn Map Company in the absence of a suitable official number.
What does F mean on Sanborn Map?
Fire escape. F Pump. Fire pump. Fill’g Sta. Filling station, or gas station.
What do the colors on Sanborn maps mean?
Other colors employed by Sanborn mapmakers included an olive green to demark fire resistive construction and gray for adobe construction material. Blue denotes concrete and cinder block construction. Gray is also used to indicate metal or iron building materials.
What is a certified Sanborn Map?
Sanborn maps are detailed maps of U.S. cities and towns in the 19th and 20th centuries. Originally published by The Sanborn Map Company (Sanborn), the maps were created to allow fire insurance companies to assess their total liability in urbanized areas of the United States.
How do you use Sanborn Map?
How to use Sanborn fire insurance maps for your family history
- Learn where exactly your ancestor lived.
- Find maps for that city.
- Locate the map sheet with your family’s neighborhood using the map index in the front pages of the map volume.
- Find the address.
- Check out the neighborhood.
- Compare maps from year to year.
Do Sanborn maps show outhouses?
They show individual building “footprints,” complete with construction details, such as building material (brick, adobe, frame, etc.), height (of larger buildings), number of stories, location of doors, windows, chimneys and elevators, use of structure (dwelling, outhouse, hotel, church, etc.), street address, and …
How do you read a Sanborn fire map?
Walls of a building on a Sanborn map were indicated by lines. Opening in a wall were indicated by an opening in the drawn line. Fire walls, cornices on the outside wall of building, and door openings and types were also indicated. The table on the right shows symbols used to indicate walls and doors.
What does FR mean on a map?
Ordnance Survey Abbreviations
| F | ??? |
|---|---|
| FR | Face Right |
| FR | Flat Rock |
| FS | Flagstaff |
| Ft | Feet |
What does blue mean on a fire map?
Moderate Fire Danger – color code is blue concentrations of fuel, especially draped fuel, may burn hot.
Are Sanborn maps copyright?
Sanborn Maps Items published in the United States prior to January 1, 1926 are in the public domain. Sanborn maps that were renewed after 1926 or published after 1963 are under copyright protection. The copyrights are held by Environmental Data Resources, Inc.
How do you read the Sanborn Fire map?
What does blue mean on a Sanborn map?
concrete
Blue denotes concrete and cinder block construction. Gray is also used to indicate metal or iron building materials.