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TRANSPORTATION DEPARTMENT
DISTRICT 3 . P;fj,yox 8028 . BOISE. ID . 83707-2028 . (20¡j)~~4é¡'3Ò~
August 30, 2004
RECEIVED
SEP 17 2004
Will Berg, City Clerk
33 East Idaho Ave..
Meridian, Idaho 83642
City of Meridian
City Clerk Office
Re:
Location: Meridian
Route: OS20-26
Name: SilverleafSubdivision, Centennial Development, LLC
Case No: PP04-031
Dear Mr. Berg:
The OS-20-26 has been designated a principal arterial type IV access control. Idaho
Transportation Department is assuming that the SilverleafSubdivision is not asking for any
access to be granted form OS-20-26. All the approaches should be designed to access other Ada
County Roads or thru adjacent subdivision to cut down on access to Chinden Blvd.
If you have any questions about the location of the approaches for the subdivision, please have
the applicant contact Mr. Ward or Larry Bronson at our office located at 8150 Chinden Blvd. in
Boise or call (208) 334-83410r 334-8339.
Noise abatement will be the responsibility of the developer and will be constructed off of the
State Right of Way, see enclosed Noise Abatement Measures.
If you have any questions please call me at 334-8340.
rJruJ
DAN COONCE, P.E.
District Traffic Engineer
Attachment
- An Equal Opportunity Employer -
PLANNING & ZONING RECOMMENDATIONS
NOISE EV ALVA TlON/MITlGA TlON
As traffic noise impacts are a potential for property adjacent to state or federal highways, the Idaho Transportation
Department (lID) requests the local Planning & Zoning Authority to require Applications for Development or Zone
Change Requests to evaluate and, if necessary, mitigate for noise impacts as indicated below under Noise Evaluation
Process.
If the Local Jurisdiction and the Applicant choose not to consider noise abatement, a letter with signatures from the
authorized representative is required from both the agency and the applicant. The letter must state that the agency and
the applicant have been notified of the potential noise impacts and the ITD policy. Additionally, the letter must state
that the right to request any noise abatement now and in the future is waived. One letter may be submitted but it
requires the signature of the authorized representative from both the Applicant and the Local Jurisdiction.
Noise Evaluation Process
1. The applicant shall perform a Traffic Noise Screen in accordance with the Environmental Process Manual
(EPM) Section 1350.02. The following information will be provided by ITD Traffic Section:
The Twenty Year Design Hourly Volume (DHV
2. If the results of the Traffic Noise Screen so warrant, then the applicant shall perform a Traffic Noise Impact
Analysis in accordance with EPM Section 1350.03.
3. The applicant shall submit a noise report to the Planning & Zoning authority with a copy to lTD. This report
shall include:
a. Results of the Traffic Noise Screen, including supporting assumptions, documentation, and conclusion
as to why a Traffic Noise Impact Analysis was warranted.
b. Results of Traffic Noise Impact Analysis including supporting assumptions and documentation
c. Type of abatement to be used for the proposed development, if any, and discussion of different types
of abatement considered.
4. The Planning & Zoning authority will review the noise report, solicit and consider comments from lID, and
determine which (if any) abatement methods will be made as a condition ofthe proposed development.
Notes:
The Environmental Process Manual (EPM) is available on line at
http;llwww2.state.id.us/itdlhil!hwavs/dev!ManualslEnviornmental/.
All noise analysis and report preparation shall be done by individuals with experience with highway traffic noise
modeling.
ITD point-of-contact for general questions on Development Applications or Zone Change Requests is District 3
Traffic Engineer, Dan Coonce at 334-8340.
ITD point-of-contact for specific questions on noise evaluation/mitigation is District 3 Environmental Manager,
Greg Vitley at 334-8952.