TM-5-5420-279-10
C.3.2.2
h = Height of existing bridge above the bank projection line through bearing points at
Access from one side of an existing bridge only
C.3.3.1
Bank Height = (2 x DSB Overbridge Deflection) + (2 x h) = 70.8in (1800mm) +
C.3.3.2
The maximum Bank Height is 9.8ft (3 meters).
C.3.3.3
h = Height of existing bridge above the bank projection line through bearing points at
NOTE
The ground bearing capabilities are to be in accord with Chapter 1 Section 1 Paragraph
On completion of ground preparations, the bridge build is to be conducted in accord with
relevant build sequences and criteria.
Overbridge Deflection = Maximum Bridge Deflection + 1.9in (50mm) Clearance = 33.4in (850mm)
+ 1.9in (50mm) = 35.4in (900mm).
h = Height of existing bridge above the bank projection line through bearing points at ends of
existing bridge.