managing road maintenance efficiently and economically (doing it right the first time) 2015 sdatat...
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![Page 1: Managing Road Maintenance Efficiently and Economically (Doing it Right the First Time) 2015 SDATAT Annual Road Conference Mr. Ken Skorseth SDLTAP Special](https://reader035.vdocuments.site/reader035/viewer/2022081603/5697c0031a28abf838cc3ede/html5/thumbnails/1.jpg)
Managing Road Maintenance Efficiently
and Economically (Doing it Right the First Time)
2015 SDATAT Annual Road ConferenceMr. Ken Skorseth
SDLTAP Special Projects Manager
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Managing Maintenance on the Road System
• Know your road system• Know your budget• Assess maintenance needs• Develop a basic maintenance plan to fit
the budget• Set priorities
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• Know your road system– Sounds simple?– Too many supervisors can’t quickly define
how many miles are on the twp system.
• Know your road classes:– Full maintenance–Minimum maintenance–No maintenance–Closed, but remains a public R-O-W
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Several ways to keep track of system
Simple map from a free atlas –
This is OK!
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Roads marked are vacated or closed:
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Minimum/no maintenance roads added:
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Complete system with full maintenance added:
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Excellent electronic maps available today:
Source: SDDOT Web Map Link
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• Know your budget–Can’t be determined to the penny each
year, but make the best estimate possible
• Calculate how much planned maintenance the budget will support:–Blade maintenance –New gravel–Culvert replacement– Signs– Snow plowing, emergency reserve, other?
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• Assess maintenance needs21 miles full maint.5 miles minimum maint.
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• Develop a basic maintenance plan to fit the budget1. Blade maintenance – $40 to $50 per mile per
cycle. (Six to eight cycles per year?)2. New gravel: ______ tons at unit cost of $8 to $15
per ton hauled and spread on the road.3. Replace ______ culverts each year. (Cost varies
greatly related to length and diameter of pipe)4. Repair/replace _______ traffic signs each year.
($95 ea. – recent estimate for 30 in. reflective sign and 10 ft. square tube post)
5. Ditch cleaning, pipe cleaning, mowing, snow plowing, etc.?
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• Set Priorities–There will never be enough funding to
cover every need.– Figure out which routes have the most
critical need related to:• Traffic volume• Level of service, i.e., serves residents, mail
routes, school routes, commercial access or? • Proposed new development – A feedlot?
Dairy? Large grain storage facility? Other?
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• Estimate total costs:– Example cost calculation for blade
maintenance:1) Assuming the average cost of blading is
$45 per mile per cycle and 2) Eight cycles of maintenance is needed in an
average year to keep a low volume in acceptable condition,
3) Total cost is $ 360 per mile annually.
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• Example cost calculation for gravel:1) It takes 1,026 tons of gravel to replace a two inch compacted layer 18 ft. wide on one mile of gravel road, so 2) At a unit cost of $10 per ton placed on the road, the cost per mile is $10,260 per mile.
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• Example cost calculation for replacing culverts:1) Remove and replace a 24 inch culvert -
$1,7002) Remove and replace a 48 inch culvert -
$5,000
Source: Cost estimates obtained and used before legislative committees last year.
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How far will the budget stretch? • Assumption: 21 miles of full maintenance roads:
1. Eight cycles of blade maint @$45 x 21: $ 7,560.002. Replace four 24 inch culverts @$1700: $ 6,800.003. Replace 10 traffic signs: $ 950.004. Replace two inches of gravel layer on three miles @$10,026: $30,078.005. Other – ditch cleaning, snow plowing: $ 2,500.00
Total $47,888.00
But annual budget is only ±$28,000!
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Some Advice on Doing Things Right
Require good shaping techniques from your blading contractors.
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Excellent drainage of water from the road surface to the ditch
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This contractor is charging the same rates!
Inferior work?
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Example Illustration of Roadway Cross Section
Define clearly what you expect:
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Good work to clean a ditch and install new culvert under a gravel road
Note culvert is placed perfectly on the flow line of the ditch
Make sure culvert installation is done right:
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This road could fail if trash is not cleared from culvert before the next heavy rain
Inspect culverts and do the maintenance
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The need for gravel – how many of your roads look like this after rain?
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Great contrast in surface condition due to quality of surface gravel
Purchase the best gravel you can find
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Good gravel stays in place, lasts longer, and is the cheapest material in the long run
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SDDOT Standard Gradation and Plasticity Requirements for Aggregate Base Course and Gravel Surfacing – Don’t be afraid to ask for material that meets a state specification.
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An added challenge: try to stay on top of pending agribusiness development
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Served by the same road:
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Existing road condition
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Same access, different location
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The county road didn’t hold up too well either
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Summary of Good Management
• Really know your road system• Know your annual budget as close as possible• Have a maintenance management plan• Prioritize!• Demand quality work and materials• Try to anticipate future development.
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THANK YOU