These Figures Are The Sum Of Kuznets' Estimates For Highways (02263) And Other Construction. For Further Information See Introductory Notes On Kuznets Data, The Source Work Cited Above, And Lipsey And Preston, P. 255. Source: Simon Kuznets, "Capital In The American Economy: Its Formation And Financing, " (Princeton University Press For NBER, 1961) Table R-30
This NBER data series a02262 appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html.
NBER Indicator: a02262
Release: NBER Macrohistory Database
National Bureau of Economic Research, Gross State and Local Government Construction for United States [A02262USA398NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/A02262USA398NNBR/, July 4, 2015.