mt-a2907861_PolebridgeRoad-2020 RPA_control-points.xlsx
XLSX spreadsheet 15 KB Posted
- Solicitation number
- 69056722B000016
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This document contains a control point table and related federal contract opportunity for road resurfacing projects in Flathead County, Montana. The control point table provides survey data including Montana State Plane Coordinates, elevations, and descriptions for control points established along the Polebridge Loop Road and North Fork of the Flathead River. The related federal contract opportunity is seeking bids for the MT Flathead 486(1) and MT FLAP FLATHD 2021(1) projects, which involve resurfacing sections of the Blankenship and Belton Stage Road approximately 35-60 miles north and 10 miles east of Columbia Falls. The opportunity was issued by the Federal Highway Administration and the Department of Transportation. Bids are due in accordance with the attached invitation, plans, and physical data documentation.
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PoleBridge
| Polebridge Loop 2020 North Fork Road RPA Survey Control Point Table | |||||||||
| Montana State Plane Coordinates (2500) NAD83(2011) International Foot Definition NAVD 88 Elevations* | |||||||||
| Point | Lat (local) | Long (local) | Height | Northing | Easting | Elevaton | Description | CSF | Conv. |
| 19101 | 48°45'54.23258" | -114°17'07.79089" | 3482.26 | 1681381.953 | 815154.932 | 3533.27 | Found 2ins FHWA AC SW of Polebridge Merc, NW of int Polebridge Loop in town, NW of log curb - See Monument Sheet | 0.99969782 | -3°30'02" |
19102 48°45'57.18606" -114°17'05.81455" 3479.16 1681672.595 815305.349 3530.16 Found 2ins FHWA AC 23ft W of CL Polebridge Loop rd, 100ft N of culvert xing, west of small trailhead to river - See Monument Sheet 0.99969841 -3°30'01"
20250 48°46'55.10230" -114°16'56.61516" 3509.59 1687492.878 816278.559 3560.60 Set 2ins FHWA AC 150ft S of bridge over North Fork Flathead River, 20ft E of CL Polebridge Loop rd - See Monument Sheet 0.99970571 -3°29'54"
20251 48°46'44.64133" -114°16'50.19269" 3492.79 1686408.565 816643.191 3543.80 M 0.99970492 -3°29'49"
| Glacier Drive | |
| PROJECT: North Fork of the Flathead River | PROJECT UNITS: International Foot |
| DATE OF FIELD WORK: July 2019/2020 | COORDINATE SYSTEM: Montana State Plane Coordinates (2500) NAD83(2011) International Foot |
| DATE OF FINAL ADJUSTMENT: July 2020 | EPOCH DATE: 2010.0000 |
| VERTICAL DATUM: NAVD 88 Elevations computed using Geoid12B from OPUS derived elevations |
| Metadata |
| Survey Performed by Robert Peccia and Associates - July 2019/2020 - Trimble R8-3 GPS/Trimble Robotic |
| Control established with GPS RTK methods: |
| Held OPUS return for CP 19101 |
| Montana State Plane Coordinates (2500) NAD83(2011) Epoch 2010.0000 International Foot Definition NAVD 88 Elevations* |
| * NAVD 88 Elevations were computed using Geoid12B from OPUS derived elevations. No NGS marks within reason for vertical check |
| Magnetic Declination used: 13°40"E |
| FHWA AC- Set 5/8"x30" long rebar with 2.5" FHWA Aluminum Cap with Control Point (CP) Number and Date |
| NGS - National Geodetic Survey |
| CSF - Combined Scale Factor |
| RPA RPC - 5/8ins diam. X 24ins long rebar with 1.25ins diam Red Plastic Cap marked RPA CONTROL |
| RP - Referenct (Mile) Post |
| Mean CSF: |
| Topo Range used |
| 200-207,300-304 |
| 1000-1351 |
| 10000-10213 |
| 50000-50214 |
File details come from the government source that posted it. Updated .