Agenda

BAE Siphon Up and Down
Feet
60 120 240
1 inch = 90 feet

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Location 3 — Main St. Crosses Nashua River — Upstream chamber 53 Main St (two pipes
join 42” RCP pipe and 54”) with downstream chamber in Bicentennial Park

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BAE Siphon Up and Down
7 a == #
0 120 240 “30

! Linch = 180 feet

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Standard Hatch Safety Grate fue

STANDARD HATCH SAFETY GRATES

USF Fabrication's Standard Hatch Safety Grate can be installed on virtually any
of our floor access hatches. The hinged grate operates independently of the
door’s reinforcing, insuring that the door will meet the specified load
requirements even if the grate is damaged or removed

FEATURES

LEFFECT OF SAFETY GRATE ON HATCH CLEAR OPENINGS

a B (HINGED SIDE)
r—* (HINGED a | 5 k- |

b>

CLEAR OPENING
NOT AFFECTED
>

CLEAR OPENING REDUCED
ONLY AT MIDDLE SUPPORTS

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CLEAR OPENING = B—6"
FOR HATCH SPANS

CLEAR OPENING = B-6"
FOR HATCH SPANS

48 UP TO 96"
(FOR 49° TO 60" USE 8-7") (FOR 97° TO 120" USE B-7")
STANDARD SAFETY GRATE DUAL STYLE SAFETY GRATE

Sa

HANDLE

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FLUSH FLOODTIGHT

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316 STAINLESS STEEL
WATERTIGHT CAM LOCK

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STAINLESS STEEL
SPRINGS

316 STAINLESS STEEL
AUTOMATIC HOLD
OPEN ARM WITH
RED VINYL GRIP

A

—MATERIAL: ALUMINUM WITH STAINLESS STEEL SPRINGS,
3/16 STAINLESS STEEL NUTS & BOLTS, CAM LOCKS,

HINGES AND HOLD OPEN ARM.

EXHIBIT C

DRAWINGS AND
SPECIFICATIONS