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Hello all - I'm using ACAD Civil 3D Land Desktop Compainion 2008. I've got some raster images in the background that won't print although they appear in the print previews. All of the other cad work prints out fine - but no image. Any suggestions?

kwdwaterengineer "I happen to have a 1967 edition of A21.1 (AWWA H1) The corrosion allowance is 0.08 in. I assume that is what you were using. Table 1-1, 12 inch pipe at 150 psi, at an 8 foot cover on the laying condition F (the most severe) requires a thickness of 0.58 inches. Will you be...

Additional info. Project is in Northeastern USA. Installation is new sewer under existing local street (private). The testing agency is responsible for quality assurance and will be hired by the contractor who is responsible for quality control. My spec. is for the contractor with the...

I have a project where I'm being asked to specify compaction testing - type, when, where and how many for the backfill over a newly installed sewer (10-16' deep). We need to insure 95% compaction. What is the best/practical way to do this? Thanks for any input.

Thanks for thr responses - the pipe is 12" C.I. class 26 which has an o.d. of 13.2 and wall thickness of 0.65 inches. I have a reference that is based on ASA Specification A21.1 (AWWA H1) which provides tables for selecting thickness class given a known depth of cover and laying condition. If...

Can anyone point me in the right direction for a standard practice for evaluating the stability of an existing cast iron water main. I am to provide analysis for a 40 year old main under a section of highway that will be widened. Need to know that construction activities as well as proposed...

I've noticed that Public Works Departments in the at least the Northeast like to call out the use of "buffalo style curb boxes - North American Made". I'm curious as to why this is designated this way. Why do they want them to be North American Made? Can any one explain? Thanks

Does anyone have any experience with this type if pipe replacement? I have a project where we are looking to replace 1600 L.F. of 20" C.I. water main with Ductile Iron of the same size. I have an understanding of the process but I have not been able to find much information on cost. I suspect...

Can someone remind me of the command that allows you to change the scale of a drawing without changing the scale of the text?

That did it thanks.

Does anyone know how to change the direction of a polyline? Thanks

Hello - Can anyone point me in the direction of Cadd details for underground electric vault and associated equipment such as ladders and cable trays? Thanks

Does anyone have a good source for underground electrical utility details? I am looking details for manholes/access as well as information regarding things like minimum cunduit radius. Thanks for any information you might have.

Turns out I was using an old driver. The IT guy got it squared away for me. Thanks for the efforts.

Thanks for the response. I should have mentioned that I am using Land Desktop 2005. I don't see a DIMSTYLE setting - where can I find it? DIMSTYLE sounds like it may pretain to dimensions - what does it do?

For some unknown reason when I plot a map form my computer with the appropriate linetypes I get a incorrectly screened map, whereas if I use an associates computer to plot the same map (with the same settings as near as I can tell) the map comes out right. Does anyone know of a setting that...

Thanks CarlB - I got it fixed and I am sure that I did just what you said about selecting by accident in the properties window.

Ok here is another one ofr you Cadd experts. I am using LDD 2005. Some setting has changed regarding how things are selected. Typically when you right click on an item it is selected. As you right click several more items they too become selected. I have apparently changed some setting that...

Thanks ctoper but there is something else going on here. The problem comes and goes, which is the strange thing. I don't think it is hardware realted but who knows.

Hello - I'm using LDD 2005. I am having a problem with my mouse scroll button switching from zoom to scroll. That is sometimes when I activate the mouse wheel I get in/out zoom and sometimes I get an up/down scroll. This computer is new to me and I wonder if the previous user had programmed...