Capital and Spring were rehabilitation projects as opposed to a reconstructed street, the difference being that <br />we strive for a 20 year design if we can get it, but we wouldn't reconstruct it if we can achieve a suitable <br />outcome otherwise. A street slated for reconstruct is designed for 30 years. <br />That being said, the existing structure of Capital was 7" to 8" of ACP on clay with the top 2 inches <br />delaminated. The Class counts conducted in 2015 only registered 5.6 Class 5, equating to a 20 year design <br />ESAL of 13,917, and a 30 year of 22,237. Based on an R value of 5, the existing structural number was <br />2.94. The required SN is 2.0 for 20 year, and 2.2 for 30 year, so the existing ACP thickness meets a 30 year <br />design. <br />The treatment for the street was a 2" to 4" cold plane pavement removal followed by 2" to 4" of ACP. <br />With 7" to 8" of ACP, the traffic count could more than double and the street would meet the design <br />requirements. <br />Due to the lack of as-builts a number of pavement cores were taken on Spring. The street structure was not <br />very consistent - some of the cores indicated Y-4" of ACP on degraded PCC, and other were Y-6" of ACP on <br />aggregate. The 20 year ESAL is 247,488. Similar to Capital, the treatment was to remove the ACP to PCC <br />and re-pave with 4" of ACP. During construction, the street did not indicate any "soft" areas, so the re-paving <br />is expected to perform well under the design loadings, and is probably sufficient to handle an increase volume <br />of traffic. <br />PWE has not done any work or research on Fairmount or 21St <br />t. <br />From: FAVREAU Eric J <br />Sent: Tuesday, September 12, 2017 9:43 AM <br />To: HIGGINS Teri L <Teri. L.HigginsCa-ci.eugene.or.us> <br />Subject: Fwd: Email for E.Favreau <br />Hi Teri, <br />The neighbors of Capital Hill were curious about the pavement design of Capital Drive. Do you have <br />that info? See email below. <br />Thanks, <br />Eric <br />Sent from my iPhone <br />Begin forwarded message: <br />From: GIOELLO Nick R <Nick.R.Gioello(a ci.eugene.or.us> <br />Date: September 8, 2017 at 8:14:34 AM PDT <br />To: FAVREAU Eric J <Eric. J.Favreau(a)-ci.eugene.or.us> <br />Subject: F : Email for E.Favreau <br />From: CW Murchison [mailto:cwmurchisonna.gmail.coml <br />Sent: Thursday, September 07, 2017 10:35 PM <br />To: GIOELLO Nick R <Nick. R.Gioello(cDci.eugene.or.us> <br />