Construction Permitting Standards, Details and Specifications
The Division of Transportation follows IDOT's Standard Specifications for Road and Bridge Construction specifications and applicable drawings and the FHWA's Manual on Uniform Traffic Control Devices. However, the following are some DuPage County DOT details and/or specifications for various requirements on the DuPage County's highway and/or trail rights-of-way.
DuPage County Engineer Plat Certificates
This is the DuPage County Engineer's sample Certificates for signature approval on Plats of Subdivision, Re-subdivision, P.U.D., Vacation, Dedication, etc. for Township Highway and DuPage County DOT jurisdictional routes.
Corner Clip Dedication Standard
This is the DuPage County corner clip dedication detail at dedicated side street or signalized intersection connections to County rights-of-way.
Trench backfill details
These are the Trench Backfill details for non-paved and below pavement (proposed or existing) installations within DuPage County rights-of-way
Pavement Marking Specs/Standards
This is the pavement striping and recessed markers specifications and details.
Temporary Construction Access
This is the Temporary Construction Entrance detail and notes including required warning signage.
General Notes & Specs
DuPage County General Notes and Standard Specifications for inclusion in engineering plans submittal.
Street Light Standard
Standard details for residential and commercial street lights "luminaires"
"Coming Soon" Compiled standards and details for commercial or residential access within County rights-of-way.
Emergency & Utility Cut Patch Specs
Emergency and utility locate window pavement excavations construction procedures and pavement patching specifications/requirements.
To obtain AUTOCAD copies of some of the standards or for additional details/standards not listed above, contact the Highway Permitting Department at 630/407-6900 (M-F 8 am to 4:30 pm, excluding holidays). You can request for them to be sent via an e-mail address or obtain them on a CD (nominal fee charged for CD only).