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The Water Cooler
General Discussion
Driveway repair or complete redo - Recommendations
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<blockquote data-quote="-Pjackso" data-source="post: 4259245" data-attributes="member: 8119"><p>It's important to know where to invest your money in road projects.</p><p></p><p>Roads fail because of insufficient road base. The base is the structural foundation. City road specs require 6" thick of road base.</p><p></p><p>I'd recommend planning on 4"-6" compacted rock base, followed by the road surface you like.</p><p></p><p>- Chip and seal is ideal because it's a thin overlay that can be reapplied in layers (when needed). It's cheap(er) upfront and 'more' can be added later.</p><p>- Asphalt minimum thickness is usually 2" thick. Asphalt by itself is not structural, and typically has a 25 year service life.</p><p>- Concrete is a good road surface. Concrete is more structural and can 'bridge' over bad areas. It costs a little more then asphalt, but concrete roads typically have a 50 year service life. (Think 20% more cost, but 100% longer service life)</p><p></p><p>I manage our HOA asphalt roads, and we repair in accordance with Norman city road specification. (Complete excavation of existing failed road section, then add 6" rock base + 6" asphalt surface) We consistently get bids at about $8-9/sq-ft at the low end of the quote range.</p><p></p><p>A driveway doesn't see the same traffic-loads as city-roads. So you could reduce the thickness some.</p><p>...If you have to cut-costs, I'd put more of the money into the base - and reduce the thickness of the road surface.</p><p></p><p>City of Norman road specification - see sheet 4 for residential streets:</p><p><a href="https://www.normanok.gov/sites/default/files/documents/2020-09/Street%20Standards%20Optimized.pdf" target="_blank">https://www.normanok.gov/sites/default/files/documents/2020-09/Street Standards Optimized.pdf</a></p></blockquote><p></p>
[QUOTE="-Pjackso, post: 4259245, member: 8119"] It's important to know where to invest your money in road projects. Roads fail because of insufficient road base. The base is the structural foundation. City road specs require 6" thick of road base. I'd recommend planning on 4"-6" compacted rock base, followed by the road surface you like. - Chip and seal is ideal because it's a thin overlay that can be reapplied in layers (when needed). It's cheap(er) upfront and 'more' can be added later. - Asphalt minimum thickness is usually 2" thick. Asphalt by itself is not structural, and typically has a 25 year service life. - Concrete is a good road surface. Concrete is more structural and can 'bridge' over bad areas. It costs a little more then asphalt, but concrete roads typically have a 50 year service life. (Think 20% more cost, but 100% longer service life) I manage our HOA asphalt roads, and we repair in accordance with Norman city road specification. (Complete excavation of existing failed road section, then add 6" rock base + 6" asphalt surface) We consistently get bids at about $8-9/sq-ft at the low end of the quote range. A driveway doesn't see the same traffic-loads as city-roads. So you could reduce the thickness some. ...If you have to cut-costs, I'd put more of the money into the base - and reduce the thickness of the road surface. City of Norman road specification - see sheet 4 for residential streets: [URL='https://www.normanok.gov/sites/default/files/documents/2020-09/Street%20Standards%20Optimized.pdf']https://www.normanok.gov/sites/default/files/documents/2020-09/Street Standards Optimized.pdf[/URL] [/QUOTE]
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Driveway repair or complete redo - Recommendations
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