Final Plat

City of El Mirage — Regular Meeting (2025-05-06)

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Project Narrative – Final Plat for the southwest corner Grand Ave  /  Acoma  
APN 501-33-009Z 
PA24-04-03 
 
 
 
Black Rock Coffee Bar 
 
December 16, 2024 
 
Narrative 
The proposed development is located at the Southwest corner of Grand Ave and Acoma in El 
Mirage AZ.     This project will contain a 620 SF Black Rock Coffee building, double drive thru 
lanes and limited onsite parking. A patio is planned on the south side of the building.     Access 
will be from Acoma with a single drive located at the maximum distance possible from Grand 
Ave.   Secondary access is planned on the Grand Ave Frontage Rd.   This site is zone UC 
Urban Corridor subject to ordinances in of City of El Mirage. 
This site has not been previously developed.   In approximately 2003, Dietz Crane homes 
constructed Acoma when developing the subdivision to the southwest.   Frontage road along 
Grand was constructed in the 1990s. 
 
 
Aerial map

This submittal is for a final plat of the site.  The following will be created / dedicated per the final 
plat. 
 
1.  Split site into two lots 
2.  Dedicate 8’ PUE along GAFR and Acoma 
3.  Dedicate PAE to cover drives on both streets 
4.  Dedicate cross access onsite 
5.  Dedicate 1’ VNAE on areas outside drives

Page 1 of 2 
 
Helix Engineering, LLC 
Closure Report 
Date: 03/24/2025 at 2:27 PM 
Project: 840 
Description: Grand Ave & Acoma Plat 
Created by: Michael Thompson 
 
Traverse of: OVERALL 
Bearing 
 
Distance 
Northing 
Easting  
Starting  at  
 
 
 
953534.9380 574921.7538  
S 46°37'53" E  
  74.29'  to  
953483.9239 574975.7590  
S 43°21'33" W  
     5.00'  to  
953480.2885 574972.3261  
S 46°37'53" E                 241.00'  to  
953314.7964 575147.5213  
S 13°04'32" W  
  48.63'  to  
953267.4273 575136.5195  
N 42°42'40" W (R) 
700.40'  to  
953782.0693 574661.4366  
 
   Delta = 12°17'49" 
Radius = 700.40' 
Length = 150.32' 
   Chord = S 53°26'15" W  150.03' 
Tangent = 75.45' 
 
S 30°24'50" E (R) 
700.40'  to  
953178.0545 575016.0142  
S 59°35'10" W  
108.64'  to  
953123.0563 574922.3241  
N 46°38'53" W  
283.16'  to  
953317.4393 574716.4241  
N 43°21'07" E  
299.12'  to  
953534.9447 574921.7634  
 
Error of closure      North = 0.00664324          East = 0.00956905 
         Bearing      S 55°13'48" W           Distance = 0.0116 
         Area = 93,920 SF     2.156 Acres 
         Perimeter = 1,210.16'          Precision =  1 : 103,885 
 
 
Traverse of: LOT 1 
Bearing 
 
Distance 
Northing 
Easting  
Starting  at  
 
 
 
953534.9380 574921.7538  
S 46°37'53" E  
 74.29'  to  
953483.9239 574975.7590  
S 43°21'33" W  
    5.00'  to  
953480.2885 574972.3261  
S 46°37'53" E  
145.51'  to  
953380.3684 575078.1048  
S 43°10'46" W  
294.05'  to  
953165.9430 574876.8906  
N 46°38'53" W  
220.68'  to  
953317.4349 574716.4230  
N 43°21'07" E  
299.12'  to  
953534.9402 574921.7623  
 
Error of closure      North = 0.00218320          East = 0.00846054 
         Bearing      S 75°31'51" W           Distance = 0.0087 
         Area = 65,140 SF     1.495 Acres 
         Perimeter = 1,038.65'          Precision =  1 : 118,870 
 
 
 
 
25090
MICHAEL J.
THOMPSON
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Page 2 of 2 
 
Traverse of: LOT 2 
Bearing 
 
Distance 
Northing 
Easting  
Starting  at  
 
 
 
953380.3698 575078.1038  
S 46°37'53" E  
  95.49'  to  
953314.7978 575147.5204  
S 13°04'32" W  
  48.63'  to  
953267.4287 575136.5185  
N 42°42'40" W (R) 
700.40'  to  
953782.0707 574661.4357  
 
   Delta = 12°17'49" 
Radius = 700.40' 
Length = 150.32' 
   Chord = S 53°26'15" W  150.03' 
Tangent = 75.45' 
 
S 30°24'50" E (R) 
700.40'  to  
953178.0559 575016.0133  
S 59°35'10" W  
108.64'  to  
953123.0577 574922.3232  
N 46°38'53" W  
   62.48'  to  
953165.9488 574876.8908  
N 43°10'46" E  
 294.05'  to  
953380.3742 575078.1049  
 
Error of closure      North = 0.00446004          East = 0.00110851 
         Bearing      S 13°57'27" W           Distance = 0.0046 
         Area = 28,780 SF     0.661 Acres 
         Perimeter = 759.61'            Precision =  1 : 165,286