Presentation to the
National Federation of Municipal Analysts
May 7, 2025
Chad Shirley
Microeconomic Studies Division
The Federal Environment for
Surface Transportation
Infrastructure
For information about the 2025 NFMA Annual Conference, see https://www.nfma.org/.
1
Highway Trust Fund
2
-300
-250
-200
-150
-100
-50
0
50
100
150
2008 2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030 2032 2034
Actual Projected
Outlays
Cash inflows
End-of-year
balance
Billions of dollars
Data source: Congressional Budget Office, “Highway Trust Fund Accounts—January 2025 Baseline” (January 2025), www.cbo.gov/publication/60870.
Annual Cash Inflows, Outlays, and Balances of the
Highway Trust Fund’s Highway Account in CBO’s
January 2025 Baseline Projections
3
-100
-80
-60
-40
-20
0
20
40
60
2008 2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030 2032 2034
Actual Projected
Outlays
Cash inflows
End-of-year
balance
Billions of dollars
Data source: Congressional Budget Office, “Highway Trust Fund Accounts—January 2025 Baseline” (January 2025), www.cbo.gov/publication/60870.
Annual Cash Inflows, Outlays, and Balances of the
Highway Trust Fund’s Transit Account in CBO’s
January 2025 Baseline Projections
4
§ Options that would affect spending:
– Limit spending to revenues collected from fuel and other taxes.
– Maintain current conditions and performance of the highway system.
– Fund all projects for which the expected benefits meet or exceed the costs.
§ Options that would affect revenues:
– Increase existing fuel taxes.
– Institute new taxes or fees.
– Transfer money from the Treasury’s general fund.
Possible Options for the Future of the Highway Trust Fund
5
Public Spending for Transportation
and Water Infrastructure
6
$132 billion
Federal government
$494 billion
State and local governments
Operation
and
maintenance:
$48 billion
(36%)
Operation
and maintenance:
$307 billion
(62%)
Capital:
$84 billion
(64%)
Capital:
$187 billion
(38%)
Data source: Congressional Budget Office, using data from the Office of Management and Budget and the Census Bureau. See www.cbo.gov/publication/60874#data.
Shares of Public Spending for Capital and for the Operation and
Maintenance of Transportation and Water Infrastructure,
by Level of Government, 2023
7
Billions of 2023 dollars
0
45
90
135
180
0
45
90
135
180
0
45
90
135
180
0
45
90
135
180
0
45
90
135
180
0
45
90
135
180
Highways Mass transit and rail Aviation
Water transportation Water resourcesc
Water utilitiesd
144
106
34
65
17
32
4
10
13
28 59
114
2023
2013
2003
1993
1983
1973
1963 2023
2013
2003
1993
1983
1973
1963 2023
2013
2003
1993
1983
1973
1963
Operation and maintenanceb
Capitala
Data source: Congressional Budget Office, using data from the Office of Management and Budget, the Census Bureau, and the Bureau of Economic Analysis. See www.cbo.gov/publication/60874#data.
a. Dollar amounts are adjusted to remove the effects of inflation using price indexes for government spending that measure the prices of materials and other inputs used to build transportation and water infrastructure.
b. Dollar amounts are adjusted to remove the effects of inflation using price indexes for government spending that measure the prices of goods and services consumed by governments, including materials and other inputs
used to operate and maintain transportation and water infrastructure.
c. Includes water containment systems (dams, levees, reservoirs, and watersheds) and sources of fresh water (lakes and rivers).
d. Includes water supply and wastewater treatment facilities.
Public Spending for Capital and for the Operation and Maintenance
of Transportation and Water Infrastructure, by Type of
Infrastructure, 1956 to 2023
8
Billions of 2023 dollars
0
50
100
150
200
0
50
100
150
200
0
50
100
150
200
0
50
100
150
200
0
50
100
150
200
0
50
100
150
200
Highways Mass transit and rail Aviation
Water transportationa
Water resourcesa,b
Water utilitiesc
56
193
28
72
22
28
7
7
13
28
7
166
2023
2013
2003
1993
1983
1973
1963 2023
2013
2003
1993
1983
1973
1963 2023
2013
2003
1993
1983
1973
1963
State and local governments
Federal government
Data source: Congressional Budget Office, using data from the Office of Management and Budget, the Census Bureau, and the Bureau of Economic Analysis. See www.cbo.gov/publication/60874#data.
Dollar amounts are adjusted to remove the effects of inflation using price indexes for government spending that measure the prices of materials and other inputs used to build, operate, and maintain transportation and
water infrastructure.
a. Outlays for navigation by the Army Corps of Engineers are included in water resources rather than in water transportation.
b. Includes water containment systems (dams, levees, reservoirs, and watersheds) and sources of fresh water (lakes and rivers).
c. Includes water supply and wastewater treatment facilities.
Public Spending on Transportation and Water Infrastructure,
by Level of Government and Type of Infrastructure, 1956 to 2023
9
Federally Supported Financing
Mechanisms for Transportation and
Water Infrastructure
10
Data source: Congressional Budget Office.
GAN = grant anticipation note; GARVEE = grant anticipation revenue vehicle.
Various Tax-Exempt Bonds for Transportation and
Water Infrastructure
Type of bond Main financial benefit Other significant advantages Significant disadvantages
Government bonds
Traditional government
bonds
The interest income that bondholders
receive is generally exempt from
federal taxes, so issuers can offer
lower interest rates and still attract
investors.
State and local governments have
substantial latitude in choosing which
public-purpose projects to finance.
Bonds backed by general revenues
may be subject to state or local limits
on how many can be issued or may
require approval by voters.
Grant anticipation bonds
(GARVEEs for highways,
GANs for mass transit)
The interest income that bondholders
receive is generally exempt from
federal taxes, so issuers can offer
lower interest rates and still attract
investors.
Issuance and interest costs can be
paid from future federal grants.
In some states, GARVEEs are exempt
from requirements that new bond
issuances be approved by voters.
The Federal Highway Administration
or the Federal Transit Administration
must confirm that projects are eligible
for federal grant funding before the
bonds are issued.
Qualified private activity bonds The interest income that bondholders
receive is generally exempt from
federal taxes, so issuers can offer
lower interest rates and still attract
investors.
They allow tax-exempt financing to be
used to support private investment in
infrastructure.
Interest rates tend to be higher
because interest income is not exempt
from the alternative minimum tax,
which may discourage some potential
investors.
The quantity that can be issued for
certain purposes is subject to
nationwide or state caps.

The Federal Environment for Surface Transportation Infrastructure

  • 1.
    Presentation to the NationalFederation of Municipal Analysts May 7, 2025 Chad Shirley Microeconomic Studies Division The Federal Environment for Surface Transportation Infrastructure For information about the 2025 NFMA Annual Conference, see https://www.nfma.org/.
  • 2.
  • 3.
    2 -300 -250 -200 -150 -100 -50 0 50 100 150 2008 2010 20122014 2016 2018 2020 2022 2024 2026 2028 2030 2032 2034 Actual Projected Outlays Cash inflows End-of-year balance Billions of dollars Data source: Congressional Budget Office, “Highway Trust Fund Accounts—January 2025 Baseline” (January 2025), www.cbo.gov/publication/60870. Annual Cash Inflows, Outlays, and Balances of the Highway Trust Fund’s Highway Account in CBO’s January 2025 Baseline Projections
  • 4.
    3 -100 -80 -60 -40 -20 0 20 40 60 2008 2010 20122014 2016 2018 2020 2022 2024 2026 2028 2030 2032 2034 Actual Projected Outlays Cash inflows End-of-year balance Billions of dollars Data source: Congressional Budget Office, “Highway Trust Fund Accounts—January 2025 Baseline” (January 2025), www.cbo.gov/publication/60870. Annual Cash Inflows, Outlays, and Balances of the Highway Trust Fund’s Transit Account in CBO’s January 2025 Baseline Projections
  • 5.
    4 § Options thatwould affect spending: – Limit spending to revenues collected from fuel and other taxes. – Maintain current conditions and performance of the highway system. – Fund all projects for which the expected benefits meet or exceed the costs. § Options that would affect revenues: – Increase existing fuel taxes. – Institute new taxes or fees. – Transfer money from the Treasury’s general fund. Possible Options for the Future of the Highway Trust Fund
  • 6.
    5 Public Spending forTransportation and Water Infrastructure
  • 7.
    6 $132 billion Federal government $494billion State and local governments Operation and maintenance: $48 billion (36%) Operation and maintenance: $307 billion (62%) Capital: $84 billion (64%) Capital: $187 billion (38%) Data source: Congressional Budget Office, using data from the Office of Management and Budget and the Census Bureau. See www.cbo.gov/publication/60874#data. Shares of Public Spending for Capital and for the Operation and Maintenance of Transportation and Water Infrastructure, by Level of Government, 2023
  • 8.
    7 Billions of 2023dollars 0 45 90 135 180 0 45 90 135 180 0 45 90 135 180 0 45 90 135 180 0 45 90 135 180 0 45 90 135 180 Highways Mass transit and rail Aviation Water transportation Water resourcesc Water utilitiesd 144 106 34 65 17 32 4 10 13 28 59 114 2023 2013 2003 1993 1983 1973 1963 2023 2013 2003 1993 1983 1973 1963 2023 2013 2003 1993 1983 1973 1963 Operation and maintenanceb Capitala Data source: Congressional Budget Office, using data from the Office of Management and Budget, the Census Bureau, and the Bureau of Economic Analysis. See www.cbo.gov/publication/60874#data. a. Dollar amounts are adjusted to remove the effects of inflation using price indexes for government spending that measure the prices of materials and other inputs used to build transportation and water infrastructure. b. Dollar amounts are adjusted to remove the effects of inflation using price indexes for government spending that measure the prices of goods and services consumed by governments, including materials and other inputs used to operate and maintain transportation and water infrastructure. c. Includes water containment systems (dams, levees, reservoirs, and watersheds) and sources of fresh water (lakes and rivers). d. Includes water supply and wastewater treatment facilities. Public Spending for Capital and for the Operation and Maintenance of Transportation and Water Infrastructure, by Type of Infrastructure, 1956 to 2023
  • 9.
    8 Billions of 2023dollars 0 50 100 150 200 0 50 100 150 200 0 50 100 150 200 0 50 100 150 200 0 50 100 150 200 0 50 100 150 200 Highways Mass transit and rail Aviation Water transportationa Water resourcesa,b Water utilitiesc 56 193 28 72 22 28 7 7 13 28 7 166 2023 2013 2003 1993 1983 1973 1963 2023 2013 2003 1993 1983 1973 1963 2023 2013 2003 1993 1983 1973 1963 State and local governments Federal government Data source: Congressional Budget Office, using data from the Office of Management and Budget, the Census Bureau, and the Bureau of Economic Analysis. See www.cbo.gov/publication/60874#data. Dollar amounts are adjusted to remove the effects of inflation using price indexes for government spending that measure the prices of materials and other inputs used to build, operate, and maintain transportation and water infrastructure. a. Outlays for navigation by the Army Corps of Engineers are included in water resources rather than in water transportation. b. Includes water containment systems (dams, levees, reservoirs, and watersheds) and sources of fresh water (lakes and rivers). c. Includes water supply and wastewater treatment facilities. Public Spending on Transportation and Water Infrastructure, by Level of Government and Type of Infrastructure, 1956 to 2023
  • 10.
    9 Federally Supported Financing Mechanismsfor Transportation and Water Infrastructure
  • 11.
    10 Data source: CongressionalBudget Office. GAN = grant anticipation note; GARVEE = grant anticipation revenue vehicle. Various Tax-Exempt Bonds for Transportation and Water Infrastructure Type of bond Main financial benefit Other significant advantages Significant disadvantages Government bonds Traditional government bonds The interest income that bondholders receive is generally exempt from federal taxes, so issuers can offer lower interest rates and still attract investors. State and local governments have substantial latitude in choosing which public-purpose projects to finance. Bonds backed by general revenues may be subject to state or local limits on how many can be issued or may require approval by voters. Grant anticipation bonds (GARVEEs for highways, GANs for mass transit) The interest income that bondholders receive is generally exempt from federal taxes, so issuers can offer lower interest rates and still attract investors. Issuance and interest costs can be paid from future federal grants. In some states, GARVEEs are exempt from requirements that new bond issuances be approved by voters. The Federal Highway Administration or the Federal Transit Administration must confirm that projects are eligible for federal grant funding before the bonds are issued. Qualified private activity bonds The interest income that bondholders receive is generally exempt from federal taxes, so issuers can offer lower interest rates and still attract investors. They allow tax-exempt financing to be used to support private investment in infrastructure. Interest rates tend to be higher because interest income is not exempt from the alternative minimum tax, which may discourage some potential investors. The quantity that can be issued for certain purposes is subject to nationwide or state caps.