INDOT Releases Falsework Removal Construction Memo

INDOT has released a USP to implement the falsework specification revisions that the ICI/INDOT Joint Cooperative Bridge Subcommittee worked on this spring.

BACKGROUND

Back in the fall of 2015, several contractors notified ICI that multiple INDOT district personnel had enforced a full 15-day period before any bridge falsework could be removed. The common practice is that falsework could be removed after achieving a desired flexible strength, typically after two to five days post pour.

SPECIFICATION REVISION HIGHLIGHTS

  • For falsework under a slab top: falsework shall remain in place at least seven days and attain or exceed a 480 psi flexural strength.
  • For falsework under a bridge deck including overhang: falsework shall remain in place at least three days and attain or exceed a 480 psi flexural strength.
  • For substructure falsework: falsework shall remain in place at least three days and attain or exceed a 480 psi flexural strength

Per the INDOT memo from Mark Miller, the USP is retroactive and should be added per a zero dollar change order to applicable current or future contracts that do not include the USP.

ICI WILL FOLLOW UP BY:

  • Reinforcing to ACEC
  • Pushing to get this revision into a RSP and into the 2018 S.S.

Spring Joint Cooperative Wrap-up โ€“ Subcommittee Updates

ICI and INDOT Bridge Subcommittee members have worked together since late fall 2015 to generate revised specification language in ยง702.14(b), Falsework Removal, to achieve a manageable falsework removal wait period and flexural strength requirement. INDOT is finalizing a unique special provision for release this spring.

Utility-related change orders were below one percent of the construction bid in 2015, as compared to two percent of construction bid in 2010. Recurring Special Provision 107-R-169 (9/1/2015), Statements About Existing Conditions of Utilities, Additional Right-of-Way, and Encroachments, contains clear utility involvement statements.

INDOT directs utility coordinators to be proactive throughout a project โ€“ from the pre-construction meeting through project completion โ€“ and especially pushes advocates participation in progress meetings.