Engineering Services

Thornton does not allow curb cuts at this time. There are no specifications that are ADA-compliant. Temporary ramps must be moved out of the curb immediately after a car enters or leaves a driveway as they pose issues to planned drainage and street sweeping activities.

Public Records Request

Thornton doesn’t have a formal process for requesting sound walls nor a threshold level.  However, staff can go out and take sound readings in order to document the measurable sound levels during the loudest periods. 

The few sound walls that have been installed were in conjunction with federally funded projects or part of a requirement in the developer’s agreement.

All utility locate requests should be made through Colorado 811.

Which utilities will City staff locate?

Thornton staff locates city-owned utilities such as water sanitary sewer, and fiber within the right-of-way.

When is it necessary to hire a private locator?

City staff does not locate private utilities. Private utilities are owned by the property owner and therefore will not be marked with the 811 request. It is the responsibility of the excavator to have private utilities located at expense of the property owner. 

Colorado811 has posted a helpful blog explaining private vs. public utilties.

What do the marking colors mean?

Utilities are marked in colors based on their type. Utility locators use a uniform color code system to mark utilities. Utilities can always be identified by their specific color, whether they are marked with paint, flags or both. Additional information is available on the 811 Resources page.

• White – proposed excavation
• Pink – temporary survey markings
• Red – electric power lines, cables, conduit and lighting cables 
• Yellow – gas, oil, steam, petroleum or gaseous materials
• Orange – communication, alarm or signal lines, cables or conduit
• Blue – potable water
• Purple – reclaimed water, irrigation and slurry lines

• Green – sewers and drain lines

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