403 — TEMPORARY SUPPORT OF EXCAVATION OR FILL 2026 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS CATEGORY 400 STRUCTURES SECTION 403 — TEMPORARY SUPPORT OF EXCAVATION OR FILL
403.01 Description
Provide temporary support of excavation or fill, as provided in the Contract Documents, for staged construction and as needed for safety and for the support of adjacent pavements and existing structures.
403.02 Materials
Not applicable.
403.03 Construction
Sheet, shore, brace, and support all excavation or fill contiguous to existing or proposed pavements and existing structures to prevent settlement, movement, or damage to the pavement or structure. See Section 402 for support requirements for Class 3 Excavation and Section 405 for support requirements for the Removal of Existing Structures. Design all temporary supports, retained earth structures, sheeting, and shoring by a professional engineer registered in the State of Maryland. When material retained by the temporary support of excavation or fill is greater than 6 ft high, submit details, procedures, and computations the same as specified for falsework details in TC-4.01 and Section 499. The experience specified under TC- 4.01 will be waived. Do not attach bracing for temporary support of excavation to permanent existing or proposed structures, unless specified in the plans or approved in writing by the Office of Structures. Requests should include calculations prepared by a professional engineer registered in the State of Maryland, showing that the temporary bracing will not affect the stability, maintenance, and the long term performance of the permanent structure. Do not extend any temporary support structures directly under any portion of proposed structures and pipes or within 5 ft of proposed pile locations, unless specified in the plans or approved in writing by the Office of Structures. Contractors should consider the configuration of the batter on piles when installing the supports. Remove temporary support of excavation or fill when no longer needed. Remove supports in their entirety or as specified in Section 405. 403 — TEMPORARY SUPPORT OF EXCAVATION OR FILL 2026 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS
403.04 Measurement and Payment
The payment will be full compensation for all excavation, backfilling, materials, shipping, installation, complete or partial removal of temporary support of excavation or fill, and for all material, labor, equipment, tools, and incidentals necessary to complete the work.
403.04.01 Support of Excavation or Fill will not be measured but will be paid for at the Contract
lump sum price.
403.04.02 Support of Excavation or Fill will be measured and paid for at the Contract unit price
per linear foot, for the actual installed quantity measured.
403.04.03 Support of Excavation or Fill will be measured and paid for at the Contract unit price
per square foot as measured vertically from the ground line on the front face (lower face) of the support to the groundline on the back face of the support and measured horizontally along the front face of the temporary support structure.
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