The report of the Maintenance Section of the Construction Division covers the period January 1 to December 31, 1939, and presents the maintenance status as of the latter date for highway projects constructed with Federal funds administered by the Public Roads Administration on which maintenance inspections are required. The report contains a brief
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Chemical Treatment of Chert-Gravels for use in Base-Course Construction; Bending Tests on Bituminous Mixtures; Effect of Consistency and Type of Asphalt on the Hubbard-Field Stability of Sheet Asphalt Mixtures; The Determination of Sodium and Potassium in Cements; State Motor-Fuel Consumption and Tax Receipts, 1939; State Motor-Vehicle Registration
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Progress in Study of Motor-Vehicle Passing Practices; Sample of Data Obtained in Study of Motor-Vehicle Passing Practices in Illinois; Stresses under a Loaded Circular Area
Experiments with Continuous Reinforcement in Concrete Pavements; The Cost of Curing Concrete Pavements with Cotton Mats; Cost of Operating Rural-Mail-Carrier Motor Vehicles
Marking and Signing No-Passing Zones on Two- and Three-Lane Roads; A Simple Accumulating-Type Traffic Counter; Accelerated Settlement of Embankments by Blasting
This is a report of the Maintenance Section of the Construction Division, showing the maintenance status of Federal Aid, Public Works, Works Program, Flood Relief, Federal Lands and Forest Roads in the Continental United States, Alaska, Hawaii and Puerto Rico. The report contains a brief outline of the activities of the section together with descri
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Application of the Results of Research to the Structural Design of Concrete Pavements; Disposition of State Motor-Fuel Tax Receipts, 1938; Disposition of State Motor-Vehicle Receipts, 1938; Disposition of State Motor-Carrier Tax Receipts, 1938; Disposition of Receipts from State Imposts on Highway users, 1938
Toll Roads and Free Roads; Tests of Concrete Curing Materials; State Motor-Fuel Consumption and Tax Receipts, 1938; State Motor-Vehicle Registrations and Receipts, 1938; State Motor-Carrier Tax Receipts, 1938
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