Note 16Commitments and Contingencies  NTTA settlement  On February 7, 2012, we were sued in an action entitled North Texas Tollway Authority (NTTA), Plaintiff v. James Construction Group, LLC, and KBR, Inc., Defendants, v. Reinforced Earth Company, Third-Party Defendant (the Lawsuit). On February 25, 2015, the Lawsuit was settled, and we recorded a liability for $17.0 million. A second defendant agreed to provide up to $5.4 million to pay for the total expected remediation cost of approximately $22.4 million. We are paying a third-party contractor approved by the NTTA to complete the remediation. During the nine months ended September 30, 2020, we increased our estimate of the total expected remediation costs by $2.0 million. We also spent $7.5 million for remediation during the nine months ended September 30, 2020. At September 30, 2020, the remaining accrual balance was $3.0 million.  Legal proceedings  We had been engaged in dispute resolution to collect money we believe we were owed for a construction project completed in 2014. The dispute resolution for the receivable initially required international arbitration; however, in the first half of 2016, the owner sought bankruptcy protection in U.S. bankruptcy court. We initiated litigation against the sureties who had provided lien and stop payment release bonds for the amount owed. During 2018, we settled with the sureties. In addition, we believe we are owed amounts from the bankruptcy trustee. We expect that we will collect a portion of the amount owed to us but cannot predict the timing of such collection.  We are subject to other claims and legal proceedings arising out of our business. We provide for costs related to contingencies when a loss from such claims is probable and the amount is reasonably estimable. In determining whether it is possible to provide an estimate of loss, or range of possible loss, we review and evaluate our litigation and regulatory matters on a quarterly basis in light of potentially relevant factual and legal developments. If we determine an unfavorable outcome is not probable, or probable but not reasonably estimable, we do not accrue for a potential litigation loss.  Management is unable to ascertain the ultimate outcome of other claims and legal proceedings; however, after review and consultation with counsel and taking into consideration relevant insurance coverage and related deductibles/self-insurance retention, management believes that it has meritorious defenses to such claims and believes that the reasonably possible outcome of such claims will not, individually or in the aggregate, have a material adverse effect on our consolidated results of operations, financial condition or cash flow.  Bonding  At September 30, 2020 and December 31, 2019, the Company had bid and completion bonds issued and outstanding totaling approximately $736.4 million and $648.6 million, respectively.