Provided are a reinforcing member and a construction method capable of easily securing a side wall contact height even in the case where installed equipment is provided on a side wall. A reinforcing member according to the present invention is a reinforcing member which reinforces a manhole by being fixed to the manhole in a state in which at least part of the reinforcing member is in contact with a side wall inner surface of an inner surface of the manhole, an insertion hole into which an anchor bolt provided to protrude from the inner surface of the manhole can be inserted is formed, and the insertion hole is an elongated hole which allows the reinforcing member to move relative to the anchor bolt in an inserted state in which the anchor bolt is inserted into the insertion hole and an unfixed state in which the reinforcing member is not fixed to the manhole.

A manhole rehabilitation system where in one example an existing cross-pipe is exposed and a manhole base and riser are cast around and above the existing cross pipe to form a manhole. In one example an FRP base liner and FRP riser liner are placed before casting in place. In one example casting is made of an aggregate. In one example, a collar and manhole cap rest upon the casting, and are supported thereby such that the liner need not be structural. In one example an existing pipe or manhole forms the outer surface of the casting. In one example shoring is placed and used as the outer surface of the casting.

A valve box for accessing a utility valve, the valve box having a box housing with an inner surface and an outer surface. The outer surface may have a plurality of fins, and the inner surface may have a plurality of keyways configured to receive a plurality of keys. The inner surface may additionally have threading. The box housing may have an access opening in some embodiments, and the valve box may include a threaded valve box cover configured to be arranged over the access opening. In some embodiments, the box housing may have a plurality of modular rings. A valve box tool may have a driving portion, a valve box engaging portion, and a stem portion. The valve box engaging portion may have a plurality of keys configured to engage the plurality of keyways. The stem portion may be configured to extend between the driving portion and a valve.

A valve box for accessing a utility valve, the valve box having a box housing with an inner surface and an outer surface. The outer surface may have a plurality of fins, and the inner surface may have a plurality of keyways configured to receive a plurality of keys. The inner surface may additionally have threading. The box housing may have an access opening in some embodiments, and the valve box may include a threaded valve box cover configured to be arranged over the access opening. In some embodiments, the box housing may have a plurality of modular rings. A valve box tool may have a driving portion, a valve box engaging portion, and a stem portion. The valve box engaging portion may have a plurality of keys configured to engage the plurality of keyways. The stem portion may be configured to extend between the driving portion and a valve.

A system for circulating air inside a manhole vault. The system includes an air-moving device in fluid communication with the manhole vault and configured to circulate the air inside the manhole vault to prevent a concentration of combustible gasses or to enhance cooling therein.

A system for detecting an intrusion of at least one of a monitoring fiber and a detector comprises a sensor having a closure monitor and an intrusion monitor, the closure monitor including a signal generator and at least one detector attached to the monitoring fiber. The signal generator transmits signal light such that the monitoring fiber receives the transmitted signal light and reflects a portion of the signal light via the at least one detector to the closure monitor and transmits a non-reflected portion of the signal light. The intrusion monitor receives the transmitted non-reflected portion of the signal light, and monitors the non-reflected portion of the signal light to detect transient changes in the non-reflected portion of the signal light indicative of at least one of a vibration, a motion and a handling of at least one of the monitoring fiber and the at least one detector.

A system for detecting an intrusion of at least one of a monitoring fiber and a detector comprises a sensor having a closure monitor and an intrusion monitor, the closure monitor including a signal generator and at least one detector attached to the monitoring fiber. The signal generator transmits signal light such that the monitoring fiber receives the transmitted signal light and reflects a portion of the signal light via the at least one detector to the closure monitor and transmits a non-reflected portion of the signal light. The intrusion monitor receives the transmitted non-reflected portion of the signal light, and monitors the non-reflected portion of the signal light to detect transient changes in the non-reflected portion of the signal light indicative of at least one of a vibration, a motion and a handling of at least one of the monitoring fiber and the at least one detector.

A prefabricated former for an underground pump station comprises: a floor former; a plurality of vertical support elements; a side wall secured to and surrounding the plurality of vertical support elements, the side wall having an inner layer and an outer layer defining a cavity therebetween, and an opening at an upper end of the side wall in communication with the cavity for receiving concrete, the side wall extending both above and below the floor former for defining a space above the floor former and a space below the floor former, and an opening being provided between the cavity and the space below the floor former enabling concrete to flow through the cavity and into the space below the floor former; when set, the concrete forming a unitary wall and base.

A manhole cover assembly comprises a base frame, the base frame comprising a base body and a base flange extending laterally outward from the base body. The assembly further comprises a top frame, the top frame comprising a top body disposed annularly about at least a portion of the base body, a top flange extending laterally outward from the top body, and a lip extending laterally inward from the top body.

A height adjustable device pit (10) is provided for use in installing water meters (12) or other equipment below ground level. The device pit (10) includes a lower housing section (14), an upper housing section (16), and a lid (18). The lower housing section (14) and the upper housing section (16) are engaged with each other by mating screw threads (20) and (22) that are centered on a vertical, longitudinal axis (24). The housing sections (14,16) are movable relative to each other along the longitudinal axis (24) to adjust the vertical height of the device pit (10) in response to relative rotation of the housing sections (14) and (16) about the longitudinal axis (24).