Road maintenance projects consist of sealcoats, rut filling, asphalt overlays, and mill/overlay processes. Following is an explanation of each type of maintenance process:

• Sealcoat – an application of liquid asphalt to an existing asphalt roadway then coated with gravel chips.
• Micro-sealcoat – essentially same as sealcoat, but premixed and applied as slurry to an asphalt surface.
• Rut filling – also known as a scrub coat, consists of a thin layer of plantmix asphalt about an inch deep; often used to level an existing roadway prior to a seal coat or overlay.
• Thin-lift asphalt overlay – a layer of plantmix asphalt between one and two inches deep applied to an existing roadway.
• Regular-lift asphalt overlay – a layer of plantmix asphalt between two and five inches deep applied directly to an existing roadway and often followed by a sealcoat.
• Mill and inlay/overlay – Milling consists of grinding off to two inches of existing asphalt roadway to remove rutting, cracks and inconsistencies of the surface. Followed by inlay paving to bring the roadway back to level and is often followed by a full-width overlay.

 

The following projects are scheduled to be funded and completed in 2012:

Key #	Project Name		Route	MP	Process
11077	Burley to Salt Lake City IC		I-84	207.72 – 215.94	Sealcoat
			I-84	215.94 – 222.00	Sealcoat
			I-84	Jerome Rest Area	Sealcoat
12927	King Hill to West Bliss		I-84	129.82 – 137.7	Sealcoat
			I-84B	169.44 – 172.6	Sealcoat
			I-84B	138.6 – 138.97	Sealcoat
11598	100 E Road to Jct. I-84		SH-24	53.394 – 58.043	Reg. Overlay
11600	FY12 District-wide Sealcoats		SH-46	87.09 – 90.58	Sealcoat
			SH-46	96.882 – 100.00	Sealcoat
		Blue Lakes Blvd.	US-93	48.48 – 49.455	Microseal
			SH-77	7.482 – 18.12	Sealcoat
11601	Poison Creek		US-20	171.13 – 181.1	Thin overlay/seal
11602	Shoshone Area, East		US-20	130.64 – 136.42	Sealcoat
			US-20	185.9 – 191.43	Sealcoat
			SH-24	64.9 – 66.92	Sealcoat
			SH-46	101.00-110.47	Sealcoat
11603	Shoshone Area, West		US-30	180.6 – 181.26	Sealcoat
		Kimberly Rd.	US-30	219.74 – 222.18	Sealcoat
		Jerome, Main St.	SH-25	0.0 – 2.10	Sealcoat
		Burley, Overland Rd.	SH-27	23.153 – 23.641	Sealcoat
			SH-74	0.00 – 7.83	Mill-inlay/seal
12068	SH75, Jct. US20 to MP105.6		SH-75	102.12 – 105.61	Overlay/micro
12388	Jct. SH81 IC#228 to MP 239 EBL		I-84 EB	229.35 – 239.4	Mill-inlay/overlay

 

District 4 Public Information Specialist
nathan.jerke@itd.idaho.gov
208-886-7809

Resident Engineer
justin.price@itd.idaho.gov
208-886-7851


The Idaho Transportation Department (ITD) is committed to compliance with Title VI of the Civil Rights Act of 1964 and all related regulations and directives. ITD assures that no person shall on the grounds of race, color, national origin, gender, age, or disability be excluded from participation in, be denied the benefits of, or be otherwise subjected to discrimination under any ITD service, program, or activity. The department also assures that every effort will be made to prevent discrimination through the impacts of its programs, policies, and activities on minority and low-income populations. In addition, the department will take reasonable steps to provide meaningful access to services for persons with Limited English Proficiency.