mt-a2907861_GlacierDrive_proposed-horizontal-alignment.pdf

PHYSICAL DATA

for

FEDERAL HIGHWAY ADMINISTRATION

WESTERN FEDERAL LANDS HIGHWAY DIVISION

MT FLATHEAD 486(1) / MT FLAP FLATHD

2021(1)

NORTH FORK OF THE FLATHEAD RIVER /

BLANKENSHIP AND BELTON STAGE ROAD

RESURFACING

PROPOSED HORIZONTAL ALIGNMENT

GLACIER DRIVE

Horizontal Alignment Review Report Report Created: Friday, August 12, 2022

Time: 2:46:28 PM

Project: MT FLATHEAD 486(1) / MT FLAP FLATHD 2021(1) Description: Polebridge Loop and Glacier Drive Alignment

File Name: C:\Users\Jason.VanDyke\Desktop\Export From ProjectWise\Managed\MT_FLATHEAD_486(1)_glacier_xa01.dgn

Last Revised: 8/12/2022 14:38:10

Note: All units in this report are in feet unless specified otherwise.

Alignment Name: MAIN1 Alignment Description:

Alignment Style: Alignment\Baseline Station Northing Easting

Element: Linear

START ( ) 1000.00 1681353.974 814947.702

PC ( ) 1178.59 1681341.643 815125.864

Tangential Direction: S86.041°E

Tangential Length: 178.588

Element: Circular

PC ( ) 1178.59 1681341.643 815125.864

HPI ( ) 1253.80 1681336.450 815200.900

CC ( ) 1681416.464 815131.042

PT ( ) 1296.61 1681411.501 815205.878

Radius: 75.000 Delta: 90.165° Left

Degree of Curvature (Arc): 76.395° Length: 118.025

Tangent: 75.216 Chord: 106.218

Middle Ordinate: 22.043 External: 31.219

Back Tangent Direction: S86.041°E Back Radial Direction: S3.959°W

Chord Direction: N48.877°E Ahead Radial Direction: S86.205°E

Ahead Tangent Direction: N3.795°E

Element: Linear

PT ( ) 1296.61 1681411.501 815205.878

PC ( ) 1373.04 1681487.761 815210.936

Tangential Direction: N3.795°E Tangential Length: 76.428

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8/12/2022

Element: Circular

PC ( ) 1373.04 1681487.761 815210.936

HPI ( ) 1401.50 1681516.161 815212.819

CC ( ) 1681481.143 815310.716

PT ( ) 1428.50 1681539.313 815229.375

Radius: 100.000 Delta: 31.775° Right

Degree of Curvature (Arc): 57.296° Length: 55.458

Tangent: 28.462 Chord: 54.750

Middle Ordinate: 3.820 External: 3.972

Back Tangent Direction: N3.795°E Back Radial Direction: S86.205°E

Chord Direction: N19.682°E Ahead Radial Direction: S54.430°E

Ahead Tangent Direction: N35.570°E

Element: Linear

PT ( ) 1428.50 1681539.313 815229.375

PC ( ) 1489.74 1681589.129 815265.001

Tangential Direction: N35.570°E Tangential Length: 61.244

Element: Circular

PC ( ) 1489.74 1681589.129 815265.001

HPI ( ) 1606.00 1681683.691 815332.625

CC ( ) 1681312.826 815651.370

PT ( ) 1717.77 1681736.334 815436.276

Radius: 475.000 Delta: 27.505° Right

Degree of Curvature (Arc): 12.062° Length: 228.025

Tangent: 116.254 Chord: 225.842

Middle Ordinate: 13.617 External: 14.019

Back Tangent Direction: N35.570°E Back Radial Direction: S54.430°E

Chord Direction: N49.322°E Ahead Radial Direction: S26.925°E

Ahead Tangent Direction: N63.075°E

Element: Linear

PT ( ) 1717.77 1681736.334 815436.276

PC ( ) 1850.36 1681796.376 815554.494

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Tangential Direction: N63.075°E Tangential Length: 132.591

Element: Circular

PC ( ) 1850.36 1681796.376 815554.494

HPI ( ) 1996.22 1681862.424 815684.539

CC ( ) 1682197.594 815350.721

PT ( ) 2132.46 1681992.200 815751.112

Radius: 450.000 Delta: 35.918° Left

Degree of Curvature (Arc): 12.732° Length: 282.096

Tangent: 145.856 Chord: 277.499

Middle Ordinate: 21.925 External: 23.048

Back Tangent Direction: N63.075°E Back Radial Direction: S26.925°E

Chord Direction: N45.116°E Ahead Radial Direction: S62.843°E

Ahead Tangent Direction: N27.157°E

Element: Linear

PT ( ) 2132.46 1681992.200 815751.112

PC ( ) 2220.10 1682070.186 815791.117

Tangential Direction: N27.157°E Tangential Length: 87.648

Element: Circular

PC ( ) 2220.10 1682070.186 815791.117

HPI ( ) 2346.55 1682182.694 815848.832

CC ( ) 1682229.937 815479.702

PT ( ) 2462.79 1682306.112 815821.312

Radius: 350.000 Delta: 39.728° Left

Degree of Curvature (Arc): 16.370° Length: 242.683

Tangent: 126.448 Chord: 237.850

Middle Ordinate: 20.824 External: 22.141

Back Tangent Direction: N27.157°E Back Radial Direction: S62.843°E

Chord Direction: N7.293°E Ahead Radial Direction: N77.429°E

Ahead Tangent Direction: N12.571°W

Element: Linear

Page 3 of 10Horizontal Alignment Review Report

PT ( ) 2462.79 1682306.112 815821.312

PC ( ) 2658.64 1682497.268 815778.686

Tangential Direction: N12.571°W Tangential Length: 195.851

Element: Circular

PC ( ) 2658.64 1682497.268 815778.686

HPI ( ) 2738.03 1682574.753 815761.408

CC ( ) 1682584.325 816169.098

PT ( ) 2815.38 1682652.964 815775.031

Radius: 400.000 Delta: 22.451° Right

Degree of Curvature (Arc): 14.324° Length: 156.740

Tangent: 79.388 Chord: 155.739

Middle Ordinate: 7.653 External: 7.802

Back Tangent Direction: N12.571°W Back Radial Direction: N77.429°E

Chord Direction: N1.345°W Ahead Radial Direction: S80.119°E

Ahead Tangent Direction: N9.881°E

Element: Linear

PT ( ) 2815.38 1682652.964 815775.031

PC ( ) 2972.66 1682807.918 815802.021

Tangential Direction: N9.881°E Tangential Length: 157.288

Element: Circular

PC ( ) 2972.66 1682807.918 815802.021

HPI ( ) 3042.66 1682876.879 815814.033

CC ( ) 1682773.599 815999.054

PT ( ) 3107.33 1682923.299 815866.427

Radius: 200.000 Delta: 38.580° Right

Degree of Curvature (Arc): 28.648° Length: 134.669

Tangent: 69.999 Chord: 132.139

Middle Ordinate: 11.228 External: 11.896

Back Tangent Direction: N9.881°E Back Radial Direction: S80.119°E

Chord Direction: N29.171°E Ahead Radial Direction: S41.539°E

Ahead Tangent Direction: N48.461°E

Page 4 of 10Horizontal Alignment Review Report

Element: Linear

PT ( ) 3107.33 1682923.299 815866.427

PC ( ) 3294.74 1683047.576 816006.702

Tangential Direction: N48.461°E Tangential Length: 187.408

Element: Circular

PC ( ) 3294.74 1683047.576 816006.702

HPI ( ) 3339.18 1683077.048 816039.968

CC ( ) 1683796.074 815343.566

PT ( ) 3383.57 1683109.355 816070.489

Radius: 1000.000 Delta: 5.090° Left

Degree of Curvature (Arc): 5.730° Length: 88.830

Tangent: 44.444 Chord: 88.800

Middle Ordinate: 0.986 External: 0.987

Back Tangent Direction: N48.461°E Back Radial Direction: S41.539°E

Chord Direction: N45.916°E Ahead Radial Direction: S46.629°E

Ahead Tangent Direction: N43.371°E

Element: Linear

PT ( ) 3383.57 1683109.355 816070.489

PC ( ) 3462.93 1683167.042 816124.985

Tangential Direction: N43.371°E Tangential Length: 79.358

Element: Circular

PC ( ) 3462.93 1683167.042 816124.985

HPI ( ) 3617.24 1683279.213 816230.952

CC ( ) 1683448.597 815826.946

PT ( ) 3758.10 1683433.416 816236.665

Radius: 410.000 Delta: 41.249° Left

Degree of Curvature (Arc): 13.975° Length: 295.171

Tangent: 154.309 Chord: 288.838

Middle Ordinate: 26.277 External: 28.077

Back Tangent Direction: N43.371°E Back Radial Direction: S46.629°E

Chord Direction: N22.746°E

Page 5 of 10Horizontal Alignment Review Report

Ahead Radial Direction: S87.878°E Ahead Tangent Direction: N2.122°E

Element: Linear

PT ( ) 3758.10 1683433.416 816236.665

PC ( ) 3940.31 1683615.505 816243.412

Tangential Direction: N2.122°E Tangential Length: 182.215

Element: Circular

PC ( ) 3940.31 1683615.505 816243.412

HPI ( ) 3972.31 1683647.483 816244.597

CC ( ) 1683578.478 817242.726

PT ( ) 4004.29 1683679.318 816247.824

Radius: 1000.000 Delta: 3.666° Right

Degree of Curvature (Arc): 5.730° Length: 63.976

Tangent: 31.999 Chord: 63.965

Middle Ordinate: 0.512 External: 0.512

Back Tangent Direction: N2.122°E Back Radial Direction: S87.878°E

Chord Direction: N3.955°E Ahead Radial Direction: S84.212°E

Ahead Tangent Direction: N5.788°E

Element: Linear

PT ( ) 4004.29 1683679.318 816247.824

PC ( ) 4079.33 1683753.976 816255.391

Tangential Direction: N5.788°E Tangential Length: 75.040

Element: Circular

PC ( ) 4079.33 1683753.976 816255.391

HPI ( ) 4165.89 1683840.095 816264.120

CC ( ) 1683728.766 816504.117

PT ( ) 4245.99 1683902.379 816324.232

Radius: 250.000 Delta: 38.196° Right

Degree of Curvature (Arc): 22.918° Length: 166.662

Tangent: 86.561 Chord: 163.593

Middle Ordinate: 13.760 External: 14.561

Back Tangent Direction: N5.788°E

Page 6 of 10Horizontal Alignment Review Report

Back Radial Direction: S84.212°E Chord Direction: N24.886°E

Ahead Radial Direction: S46.016°E Ahead Tangent Direction: N43.984°E

Element: Linear

PT ( ) 4245.99 1683902.379 816324.232

PC ( ) 4568.91 1684134.734 816548.486

Tangential Direction: N43.984°E Tangential Length: 322.923

Element: Circular

PC ( ) 4568.91 1684134.734 816548.486

HPI ( ) 4747.93 1684263.546 816672.807

CC ( ) 1684586.128 816080.786

PT ( ) 4918.29 1684437.846 816713.647

Radius: 650.000 Delta: 30.797° Left

Degree of Curvature (Arc): 8.815° Length: 349.378

Tangent: 179.020 Chord: 345.187

Middle Ordinate: 23.333 External: 24.202

Back Tangent Direction: N43.984°E Back Radial Direction: S46.016°E

Chord Direction: N28.585°E Ahead Radial Direction: S76.813°E

Ahead Tangent Direction: N13.187°E

Element: Linear

PT ( ) 4918.29 1684437.846 816713.647

PC ( ) 5209.15 1684721.029 816779.998

Tangential Direction: N13.187°E Tangential Length: 290.853

Element: Circular

PC ( ) 5209.15 1684721.029 816779.998

HPI ( ) 5335.68 1684844.232 816808.865

CC ( ) 1684903.531 816001.093

PT ( ) 5460.14 1684970.329 816798.299

Radius: 800.000 Delta: 17.977° Left

Degree of Curvature (Arc): 7.162° Length: 251.000

Tangent: 126.540 Chord: 249.971

Middle Ordinate: 9.824

Page 7 of 10Horizontal Alignment Review Report

External: 9.946 Back Tangent Direction: N13.187°E

Back Radial Direction: S76.813°E Chord Direction: N4.199°E

Ahead Radial Direction: N85.210°E Ahead Tangent Direction: N4.790°W

Element: Linear

PT ( ) 5460.14 1684970.329 816798.299

PC ( ) 6337.08 1685844.201 816725.076

Tangential Direction: N4.790°W Tangential Length: 876.934

Element: Circular

PC ( ) 6337.08 1685844.201 816725.076

HPI ( ) 6526.53 1686032.990 816709.258

CC ( ) 1685627.105 814134.156

PT ( ) 6715.31 1686217.493 816666.238

Radius: 2600.000 Delta: 8.335° Left

Degree of Curvature (Arc): 2.204° Length: 378.234

Tangent: 189.451 Chord: 377.901

Middle Ordinate: 6.875 External: 6.893

Back Tangent Direction: N4.790°W Back Radial Direction: N85.210°E

Chord Direction: N8.957°W Ahead Radial Direction: N76.875°E

Ahead Tangent Direction: N13.125°W

Element: Linear

PT ( ) 6715.31 1686217.493 816666.238

PC ( ) 6889.72 1686387.346 816626.635

Tangential Direction: N13.125°W Tangential Length: 174.410

Element: Circular

PC ( ) 6889.72 1686387.346 816626.635

HPI ( ) 7029.30 1686523.275 816594.941

CC ( ) 1685547.179 813023.287

PT ( ) 7168.74 1686656.430 816553.097

Radius: 3700.000 Delta: 4.321° Left

Degree of Curvature (Arc): 1.549° Length: 279.018

Tangent: 139.575

Page 8 of 10Horizontal Alignment Review Report

Chord: 278.952 Middle Ordinate: 2.630

External: 2.632 Back Tangent Direction: N13.125°W

Back Radial Direction: N76.875°E Chord Direction: N15.285°W

Ahead Radial Direction: N72.555°E Ahead Tangent Direction: N17.445°W

Element: Linear

PT ( ) 7168.74 1686656.430 816553.097

PC ( ) 7705.85 1687168.838 816392.071

Tangential Direction: N17.445°W Tangential Length: 537.113

Element: Circular

PC ( ) 7705.85 1687168.838 816392.071

HPI ( ) 7791.63 1687250.665 816366.357

CC ( ) 1686929.000 815628.869

PT ( ) 7876.74 1687325.181 816323.881

Radius: 800.000 Delta: 12.239° Left

Degree of Curvature (Arc): 7.162° Length: 170.892

Tangent: 85.772 Chord: 170.567

Middle Ordinate: 4.559 External: 4.585

Back Tangent Direction: N17.445°W Back Radial Direction: N72.555°E

Chord Direction: N23.565°W Ahead Radial Direction: N60.315°E

Ahead Tangent Direction: N29.685°W

Element: Linear

PT ( ) 7876.74 1687325.181 816323.881

PC ( ) 7966.82 1687403.437 816279.272

Tangential Direction: N29.685°W Tangential Length: 90.078

Element: Circular

PC ( ) 7966.82 1687403.437 816279.272

HPI ( ) 8094.44 1687514.311 816216.070

CC ( ) 1687492.578 816435.649

PT ( ) 8188.85 1687610.644 816299.780

Radius: 180.000 Delta: 70.674° Right

Degree of Curvature (Arc): 31.831°

Page 9 of 10Horizontal Alignment Review Report

Length: 222.030 Tangent: 127.622

Chord: 208.219 Middle Ordinate: 33.163

External: 40.652 Back Tangent Direction: N29.685°W

Back Radial Direction: N60.315°E Chord Direction: N5.652°E

Ahead Radial Direction: S49.010°E Ahead Tangent Direction: N40.990°E

Element: Linear

PT ( ) 8188.85 1687610.644 816299.780

END ( ) 8237.35 1687647.251 816331.591

Tangential Direction: N40.990°E

Tangential Length: 48.498

Page 10 of 10Horizontal Alignment Review Report