Provided are various examples of a temporary manhole cover and its methods of use configured to prevent an entire person from falling into a manhole, while providing a unique structure, adjustable in some embodiments, that allows access for a user to simultaneously reach through and/or pass objects through the temporary manhole cover when it is installed in a manhole. The structure may include an annular perimeter portion optionally having an L-shaped cross-section defining a circular interior opening there-through, a first set of two parallel laterally-separated cross-members each attached with and extending across the circular opening, and a second set of two parallel laterally-separated cross-members each extending perpendicularly between and attached with the first set of two parallel laterally-separated cross-members.

Provided are various examples of a temporary manhole cover and its methods of use configured to prevent an entire person from falling into a manhole, while providing a unique structure, adjustable in some embodiments, that allows access for a user to simultaneously reach through and/or pass objects through the temporary manhole cover when it is installed in a manhole. The structure may include an annular perimeter portion optionally having an L-shaped cross-section defining a circular interior opening there-through, a first set of two parallel laterally-separated cross-members each attached with and extending across the circular opening, and a second set of two parallel laterally-separated cross-members each extending perpendicularly between and attached with the first set of two parallel laterally-separated cross-members.

A cap assembly can include a cap holder device with a plug member and a cap holder. The cap holder device is positionable in an end of a conduit positioned along a roadway. The cap holder is carried by the plug member and includes a magnetic element and a connector. The connector is connectable to the magnetic element to the plug member such that the magnetic element is movable relative to the plug member so as to position the magnetic element for releasably holding a cap that covers the end of the conduit when the plug member is positioned in the conduit. The cap assembly can be a debris cap insertable in a conduit, an end of a pipe, or other opening.

A mounting structure for protecting a transceiver located on an underside of a manhole cover is formed from a metal or rugged plastic in the shape of a truncated dome or cone with a sloping sidewall and a cavity configured to receive a transceiver, wherein the mounting structure is mountable to an underside of the manhole cover. A data communication system for an enclosure comprises a transceiver configured to communicate with a network outside of the enclosure and a mounting structure to mount the transceiver to an underside of the manhole cover. The mounting structure is configured to protect the transceiver from damage during removal of the manhole cover from the entrance port of the enclosure.

A mounting structure for protecting a transceiver located on an underside of a manhole cover is formed from a metal or rugged plastic in the shape of a truncated dome or cone with a sloping sidewall and a cavity configured to receive a transceiver, wherein the mounting structure is mountable to an underside of the manhole cover. A data communication system for an enclosure comprises a transceiver configured to communicate with a network outside of the enclosure and a mounting structure to mount the transceiver to an underside of the manhole cover. The mounting structure is configured to protect the transceiver from damage during removal of the manhole cover from the entrance port of the enclosure.

A system for integrated water management of a basement is disclosed. The basement has a footer, a wall extending upward from the footer, and a sill plate on top of the wall. The system may include a sill plate barrier with a base located between the sill plate and the wall. The system may include a vertical barrier coupled to the sill plate barrier and extending downward along an exterior of the wall toward the footer. In addition, the system may have a footer barrier coupled to the vertical barrier and extending over an exterior of the footer. The system may include a drain member adjacent the exterior of the footer and coupled to the footer barrier. In one version, the sill plate barrier, vertical barrier, footer barrier and drain member collectively form the integrated water management system for the exterior of the basement to prevent water intrusion.

A system for integrated water management of a basement is disclosed. The basement has a footer, a wall extending upward from the footer, and a sill plate on top of the wall. The system may include a sill plate barrier with a base located between the sill plate and the wall. The system may include a vertical barrier coupled to the sill plate barrier and extending downward along an exterior of the wall toward the footer. In addition, the system may have a footer barrier coupled to the vertical barrier and extending over an exterior of the footer. The system may include a drain member adjacent the exterior of the footer and coupled to the footer barrier. In one version, the sill plate barrier, vertical barrier, footer barrier and drain member collectively form the integrated water management system for the exterior of the basement to prevent water intrusion.

A cover device for use with an aperture disposed through a surface and having an inner perimeter surface includes a cover plate having a body portion with inner and outer surfaces and at least one elongated channel disposed therethrough. The cover plate includes a plurality of retention members extending inwardly into the at least one elongated channel. At least one engagement feature is operably coupled to the cover plate at the at least one elongated channel and slidably disposed along the at least one elongated channel between retracted and deployed positions. The at least one engagement feature includes at least one engagement member disposed below the inner surface of the cover plate that engages the inner perimeter surface of the aperture when the at least one engagement feature is in the deployed position when the cover plate is positioned over the aperture.

Sewer gas sampling and analyzing devices include a dish-shaped manhole insert having a manhole insert interior and a manhole insert exterior outside the manhole insert interior; a manhole insert vent valve carried by the manhole insert, the manhole insert vent valve having a valve inlet disposed in fluid communication with the manhole insert exterior and a valve outlet and the manhole insert vent valve facilitates substantially unrestricted flow of gas from the valve inlet to the valve outlet; and a gas detector unit disposed in fluid communication with the valve outlet of the manhole insert vent valve. Sewer gas sampling and analyzing methods are also disclosed.

Sewer gas sampling and analyzing devices include a dish-shaped manhole insert having a manhole insert interior and a manhole insert exterior outside the manhole insert interior; a manhole insert vent valve carried by the manhole insert, the manhole insert vent valve having a valve inlet disposed in fluid communication with the manhole insert exterior and a valve outlet and the manhole insert vent valve facilitates substantially unrestricted flow of gas from the valve inlet to the valve outlet; and a gas detector unit disposed in fluid communication with the valve outlet of the manhole insert vent valve. Sewer gas sampling and analyzing methods are also disclosed.