TM-5-5420-279-10
SITE RECONNAISSANCE WORKSHEET
SITE RECONNAISSANCE
DETERMINE CENTER LINE OF BRIDGE. [Fig 1.11]
DETERMINE A.R. PEG ON HOME BANK
GAP (A.R. SPAN)
DETERMINE GAP
(A.R. SPAN)
MAX. 40 m TO MIN. 20 m
MAX. + OR - 3 m FOR 40 m
BANK HEIGHT
DETERMINE FAR
BANK HEIGHT.
MAX. + OR - 2 m FOR 20 m
NORMAL. [Fig 1.12]
RESTRICTED. [Fig 1.13]
CHECK BUILD SITE
41 m LG x 15 m W
22.45 m LG x 10.9 m W
ON HOME BANK
[ 7.5 m either side of center line ]
SOIL BEARING CAPACITY
MINIMUM SOIL BEARING CAPACITY AT
DETERMINE BANK
BEARING AREA OF BRIDGE
GROUND BEARING
(200 KN per SQUARE METER)
SLOPE
NORMAL: MAX 1 IN 20
DETERMINE HOME
RESTRICTED: BETWEEN
BANK
LONGITUDINAL
1 IN 20 TO 1 IN 10
SLOPE
POSITIVE OR NEGATIVE
i.e., POSITIVE: UPSLOPE TOWARDS GAP
NEGATIVE: DOWNSLOPE TOWARDS GAP
MAX 1 IN 20
SLOPE
DETERMINE HOME
i.e., SLOPE ACROSS BUILD SITE
HOME
FAR
& FAR BANK
PARALLEL TO GAP
TRANSVERSE
SLOPE [Fig 1.9]
MAX. WIND SPEED
ACCESS ROUTE ON
OVERHEAD
GROUND BEARING
35 mph
& OFF BRIDGE
CABLES
CRANE &
OTHER
CONSIDERATIONS
A-FRAME FEET
Change 1 H-1/(H-2 Blank)
