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The County of DuPage
Wheaton, Illinois

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"

Entrance Standards/Details

"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).

More » Contact Us

Director of Transportation/County Engineer:
Christopher C. Snyder, P.E.



Fax- Overweight/Over-dimension Movement Highway Permits Only:

Office Hours:
8 a.m. - 4:30 p.m.
Monday - Friday

Jack T. Knuepfer Bldg
421 N. County Farm Road #2-300

Wheaton, IL 60187-2553


Highway Permitting Email: