Subdivision Paving Local Improvement District Advisory Committee
Thursday, February 20, 2014 – 6:00 PM
Boulder County Subdivision Roads
Subdivision Roads Pavement Quality is Deteriorating
Good
Fair
Poor
What is Needed Boulder County will continue to provide routine maintenance, but what all roads need eventually regardless of their condition, is rehabilitation.
ASSUMPTIONS • 15-year timeframe for improvements • Contingency – 20% based upon engineering judgment and experience • Inflation Factor – 5%/year. Estimated from historic data • Construction cost estimates based upon current (2013) construction and material costs for similar county projects • 20% county participation is already included in costs
2014 Revenue Forecast Total LID Assessments
$3,940,682
Budget Uncollectable (1%)
($39,407)
Assessment Revenue to be budgeted
$3,901,275
County 20% share
$955,159
Total Budget Revenues
$4,856,434
Expenses (Admin, Staff)
$145,010
Total Budgeted Expenditures
$4,661,311
2014 Budgeted Ending Fund Balance
$200,000
Subdivision Paving Program Policy Options* a. Least Cost over Life of Program b. Pave the Worst Roads First c. Geographical Focus d. Regional Approach e. County 20% Match *variations and combinations can be developed from these
Road Ratings • Roads are evaluated every 3 years, given a Pavement Quality Index (PQI) rating of 1-10; 1 being worst, 10 being best • Poor < 5 • Fair 5 – 7 • Good > 7 • Subdivisions are given a combined rating , based on average weighted PQI of Subdivision Roads within the subdivision.
Least Cost over Program Life • Overlay and Chip-seal the better of the fair roads to minimize the quality slip. Reconstruct one or two miles of subdivision roads / year. • Delay construction of remaining poor roads 3-4 years. • Roads that need full reconstruction can’t get any worse- their cost stays the same • Subdivisions at lower end of fair rating can avoid deterioration to poor and associated more costly structural repair by paving earlier.
Least Cost over Program Life Miles of Reconstruction
2
Miles of Overlay
15
Miles of Chip Seal
10
Program Budget
$4.5 Million
Advantages: • Can Resurface more roads the first few years of the program • Can pave more miles/dollar of the fair roads than the poor roads
Disadvantage: • Poor road reconstruction is delayed 3-4 years
Pave the Poor Roads First • Under this option the worst rated roads would be reconstructed first. • Most of these roads will require full replacement
Advantages: • Provides a systematic approach to resurfacing
Disadvantages: • Fair roads become worse and may slip to poor too early
Pave Worst Roads First Program Miles of Reconstruction
11
Miles of Overlay
2
Miles of Chip-seal
10
Program Budget
$4.5 Million
Geographically Focused • Assemble projects by grouped subdivisions or areas • Attempt to achieve initial cost savings by close proximity (economy of scale)
Advantages: • Increase in Paving Production (Initially) • Ability to serve high number of residents if focused on dense subdivision areas
Disadvantages: • Somewhat selective process
• Later years of this program may not be cost effective
Geographically Focused Program Miles of Reconstruction
4
Miles of Overlay
8
Miles of Chip-seal
10
Program Budget
$4.5 Million
Regional Approach • Complete projects in every area of the County • Select subdivision in N,S,E,W, regions of the County – beginning with Poor /fair Roads
Advantages: • County Wide Benefit • Addresses multiple areas for broadest application
Disadvantages: • May not reconstruct many poor roads • May not be as cost effective
Regional Approach Program Miles of Reconstruction
2
Miles of Overlay
9
Miles of Chip-seal
10
Program Budget
$4.5 Million
County 20% Match • Only spend the County 20% match the first year • Focus only on residential collectors
Advantages: • Repairs the Collector and extra-subdivision roads • Uses County participation up front
Disadvantages: • selective process – less systematic process • Not as cost effective; remainder of roads will go to poor quickly
County 20% Program Miles of Reconstruction
0
Miles of Overlay
1-2
Miles of Chip-seal
10
Program Budget
$862,000
Subdivision Paving Program Options 1. 2. 3. 4. 5.
Least Cost over Life of Program Pave the Worst Roads First Geographical Focus Regional Approach County 20% Match
