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Highway Statistics 2004 OHPI > Highway Statistics > 2004 > Hwy Finance > Table FA-4A

APPORTIONMENT FORMULAS - FEDERAL-AID HIGHWAY PROGRAM

ENACTED IN SAFETEA-LU

OCTOBER 2005Table FA-4A
FUNDFACTORSWEIGHT STATUTE 1/MINIMUM APPORTIONMENT
Interstate Maintenance (IM)Interstate System lane miles
Vehicle miles traveled on the Interstate System
Annual contributions to the Highway Account of the Highway Trust Fund
attributable to commercial vehicles
33 1/3%
33 1/3%
33 1/3%
104(b)(4)1/2 percent of Interstate Maintenance
and National Highway System
apportionments combined
National Highway System (NHS)Remainder apportioned as follows:
Lane miles on principal arterial routes (excluding the Interstate System)
Vehicle miles traveled on principal arterial routes (excluding the Interstate
System)
Diesel fuel used on highways
Total lane miles on principal arterials divided by the State's total
population
 
25%
35%
 
30%
10%
 
 
104(b)(1)1/2 percent of Interstate Maintenance
and National Highway System
apportionments combined
Surface Transportation Program (STP)Total lane miles of Federal-aid highways
Total vehicle miles traveled on Federal-aid highways
Estimated tax payments attributable to highway users paid into the Highway
Account of the Highway Trust Fund
25%
40%
35%
104(b)(3)1/2 percent
Bridge Replacement and Rehabilitation Program (BRR)Relative share of total cost to repair or replace deficient bridges100%144(e)1/4 percent
(10 percent maximum)
Congestion Mitigation and Air Quality
Improvement Program (CMAQ)
Weighted nonattainment and maintenance area population100%104(b)(2)1/2 percent
Recreational Trails Program (RT)Equal shares to each eligible State
Nonhighway recreational fuel use during the preceding year
50%
50%
104(h)None
Metropolitan Planning (MP)Urbanized area population 2/100%104(f)(2)1/2 percent
Equity BonusEach State's share of apportionments from the Interstate Maintenance, National Highway
System, Bridge, Surface Transportation Program, Highway Safety Improvement Program,
Congestion Mitigation and Air Quality Improvement, Metropolitan Planning, Appalachian
Development Highway System, Recreational Trails, Safe Routes to School, Rail-Highway
Grade Crossing, Coordinated Border Infrastructure programs, the Equity Bonus itself, along
with High Priority Projects will be at least a specified percentage of that State's contributions
to the Highway Account of the Highway Trust Fund. The specified percentge, referred to as
a relative rate of return, is 90.5% for 2005 and 2006, 91.5% for 2007, and 92% for 2008
and 2009.
100%105None
State and Community Highway Safety GrantsTotal population
Public road mileage
75%
25%
402(c)1/2 percent, 1/4 percent for American
Samoa, Guam, Virgin Islands, and the
Commonwealth of the Northern
Mariana Islands, 3/4 percent for
Secretary of the Interior (Bureau of
Indian Affairs)
Highway Safety Improvement ProgramTotal lane-miles of Federal-aid highways
Total vehicle miles traveled on lanes on Federal-aid highways
Total fatalities on the Federal-aid system
33.33%
33.33%
33.33%
1481/2 percent

1/ Denotes appropriate section in title 23 U.S. Code.

2/ Usually places of 50,000 or more persons. Definition contained in 23 U.S.C. 101(a).


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