28 July 2005
For piers provide a 15-foot-wide unobstructed fire
lane independent of net operating width requirements.
Locate and mark the lane near the longitudinal pier
centerline. For wharves, provide a 15-foot-wide
unobstructed fire lane immediately adjacent to the
Since this time, Navy piers have been and are continuing to be built with a 15-ft
(4.6 m) fire lane. Subsequent to this an NFPA requirement calling for 20 ft (6.1
m) fire lanes was identified. The current philosophy is supported by the fact that
there are a number of considerations that go into development of pier width and
pier area. Width and area must be provided for the following functions in addition
to fire protection: berthing, maintenance, crew training, cargo transfer, light
repair work, waste handling, fueling/ordnance handling (under some
circumstances) and utilities that provide hotel services. Increasing pier width, by
another 5 ft (1.5 m), over the length of the pier would cause a significant increase
in construction cost and require additional real estate where multiple piers are
arranged. Recognizing the fact that area is allotted for crane location along the
length of the pier, this area will not be occupied a majority of the time, therefore,
it is anticipated that additional area besides the 15-ft (4.6 m) fire lane and 2.5 ft
(0.6 m) wide "dual use" buffer will be available along the pier for additional
staging in the event of an emergency.
At specified berths, stationary fuel-handling equipment consisting of self-
adjusting loading arms is often furnished to offload fuel products from tankers to
onshore storage facilities. Pier or wharf width requirements depend on
equipment selected and facilities furnished.
Phased Maintenance Activities (PMA).
The four levels of PMA and their estimated space requirements are as follows
and as detailed in Table 2-3.
For additional information, see TM-5, and OPNAVINST 4700.7J.
a. Intermediate Maintenance Availability (IMA). IMA consists of removal
and repair of shipboard equipment performed by Shore Intermediate
Maintenance Activity (SIMA) personnel or tender forces, with a duration of
approximately 30 days. Gross deck requirements range from 2000 to
3000 ft2 (185.5 to 287.8 m2) with work area dimensions varying from 30 x
65 ft (9.1 x 19.8 m) to 30 x 100 ft (9.1 x 30.5 m.)
b. Planned Restricted Availability (PRA). PRA consists of limited repairs
of shipboard equipment and systems by contract forces under Supervisor
of Shipbuilding and Repairs (SUPSHIP) control, with a duration of 30 to 60