1-14. Full North Atlantic Treaty Organization Bridge Symbol. Bridge information is
recorded on a map or overlay by using the full NATO bridge symbol (Figure 1-15). The
required data includes the serial number, the geographic location, the MLC, the overall
length, the traveled-way width, the overhead clearance, and any available bypasses
(STANAG 2253). A question mark is used to indicate information that is unknown or
undetermined. The question mark is included as part of the bridge reconnaissance symbol.
Two-way wheeled classification
One-way wheeled classification
Length
Overhead clearance
One-way tracked classification
Two-way tracked classification
Serial number
Traveled-way width
Bridge location
Bypass conditions
= wheeled vehicle
= tracked vehicle
Figure 1-15. The Full North Atlantic Treaty Organization Bridge Symbol
a.
A serial number is assigned to the bridge for future reference and is recorded
in the lower portion of the symbol. Serial numbers are not duplicated within any one map
sheet, overlay, or document. Later identification requires the map sheet and the overlay
number as well as the bridge's serial number.
b.
The geographic location is shown by a line extending from the symbol to the
exact map location.
c.
The MLC number is shown in the top portion of the circle. This number
indicates the carrying capacity of the bridge (classifications for single- and double-flow
traffic are included). In those instances when dual classifications for wheeled and tracked
vehicles exist, both classifications are shown.
d.
The overall length is the distance between abutments, measured along the
bridge centerline. The length is placed to the right of the circle and is expressed in meters.
e.
The minimum lane width is the clear distance between curbs. This figure is
placed below the symbol and is expressed in meters. Bridges may be obstructions to traffic
flow because the traveled way of the overall route may be reduced on the bridge to below
the minimum standards. If so, the bridge is reported as a width obstruction in the route
1-9
EN 5621
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