Purpose The purpose of this paper is twofold: first, to develop theoretical underpinnings using TCE, and second, to run the analysis using an advanced tool such as structural equation modeling (SEM). Design/methodology/approach This study was conducted in the construction industry in Tanzania. A questionnaire-based survey method was used. A total of 308 respondents participated in the study. The relationships between the cause and effect factors were analyzed using SEM. Findings The important findings are as follows:cost overrun can be explained by consultant-related and material-related factors; disputes can be explained by cost overrun; arbitration can be explained by consultant-related, cost overrun, and dispute factors; litigation can be explained by client-related, disputes, and arbitration factors; and abandonment can be explained by consultant-related, external-related, disputes, arbitration, and litigation factors. Originality/value The main contributions of this study are theoretical development and comprehensive analyses of “cause” and “effect” factors of delays in the construction industry.

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This study carried out to determine the coefficient of discharge and coefficient of roughness for short grass bed and concrete bed in an open channel at Hydraulics laboratory. The open channel on the hydraulic bench is intended to depict an actual open channel flow scenario; therefore steady flow was used for this experiment. From the investigation, it was evident that coefficient of discharge for grass bed and concrete bed ranges between 0.00218 and 0.0539. The slope of the channel was found to have no effect on coefficient of discharge. Manning's Roughness Coefficient "n" was found to increase with the decrease of discharge. Concrete bed has higher coefficient of discharge and lower coefficient of roughness when compared to short grass.