- What types of construction might get funded by Infrastructure stimulus?
- How big is the Infrastructure construction market?
- What share of Infrastructure is Public work?
- What other types of work are publicly funded?
- How much new stimulus work can be added to current backlog?
- Total all construction spending in 2017 will be about $1.240 trillion.
- Infrastructure = $300 billion, 25% of all construction spending.
- Infrastructure is about 60% public, 40% private. In 2005 it was 70% public.
- Public Infrastructure = $170 billion. Private Infrastructure = $130 billion.
- Power and Communications are privately funded infrastructure.
- Nonresidential Buildings is 25% public (mostly institutional), 75% private.
- Educational, Healthcare and Public Safety are Public Nonres Institutional Bldgs
- Public Commercial construction is not included.
- Public Institutional = $100 billion, mostly Education ($70b).
Total Public Infra + Institu = $270 billion, 23% of total construction spending.
The potential target markets for an infrastructure stimulus plan could range from the $170 billion public civil infrastructure market up to a total $270 billion market that includes public institutional work. All of these types of projects may not get funded. Then again, Communications, which is 99% private and not included here, has been considered to receive some stimulus funding (rural broadband).
Total All Construction spending, all public + private construction, has average growth of $50 billion/year. Adding $100 billion of spending in a single year, from all sources public and private, is the maximum level of growth for the entire construction industry.
Public Infrastructure + Institutional average growth is $12 billion/year. It has never exceeded $30 billion in growth in a single year.
Public Infrastructure best growth (highest for at least 3 consecutive years, and in almost all cases was from 2005-2007) over the last 15 years, averages 10%/year. For Sewer, Water, Conservation and Communications that’s equivalent to adding only $1 bil to $2 bil per year. For Transportation it’s $4 bil/yr and for Highway it’s $8 bil/yr. For Public Institutional, Educational it’s $8 bil/yr. and other institutional about $2 bil/yr. If all these could hit best ever averages at the same time then Infrastructure spending would grow $25-$30 billion/year.
Spending growth from work already in record backlog for public infrastructure + institutional is predicted to increase by $10-$20 billion/yr. in each of next several years. Transportation alone for the next two years is increasing by more than $10 billion/year. Adding $15-$20 billion/year more in spending for an infrastructure expansion plan would push total public work well above record levels, at least for the next three years. That is probably not sustainable.
Public infrastructure and institutional, only 23% of the entire industry, can probably only absorb another $10 billion of new growth per year on top of the predicted growth. That would push growth to $20-$25 billion/year, near record growth in each of the next three years.
For every $10 billion a year in added infrastructure spending, that also means adding about 40,000 new construction jobs per year.
Average post-recession growth in public infrastructure + institutional jobs is about 35,000 jobs per yr. Max growth was 50,000 jobs/yr. Historical maximum jobs growth would seem to limit spending growth to a total of about $15 billion/year. That is the amount of spending already predicted from work in backlog, without adding any more work from an infrastructure stimulus plan.
Because the potential markets to which stimulus might be applied are relatively small in comparison to all construction, and because those markets identified are already at record backlog, both historical maximum spending growth and jobs growth identify potential limits on infrastructure stimulus growth. Those limits are much lower than generally thought.
This article has more on the same topic Down the Infrastructure Rabbit Hole 2-16-18