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Home My WebLink AboutDOCUMENT Geotechnical Statement Remodel 1240 Big Thompson Ave 2023-02-08 P a g e 1 | 2 March 1, 2023 Barry Kramer Plan Review Manager, SAFEbuilt 11409 Business Park Circle Ste 320 Firestone, CO 80504 303-774-1388 X 103 bkramer@safebuilt.com RE: HRI – Hotel Estes Porte-cochere – Geotechnical Statement Barry, At your request, received on February 14, 2023, Galloway is providing this statement letter that can accompany our permit documents. The content of this letter concurs with the statements in my email to John Kupferschmid on February 8, 2023. In lieu of a geotechnical investigation and soils report, the foundation design is based on the presumption load-bearing values in accordance International Building Code 2018, with local amendments, Table 1806.2 (see the clip below). Understanding that the foundations will be a minimum of 30 inches below grade, we anticipated a bearing capacity of a least 1,500 psf. which corresponds with clay, sandy clay, silty clay, clayey silt, silt and sand silt soils. This is a conservative approach because the typical local soils in Estes Park are substantially more capable consisting of gravelly sandy loam (GW or SW) to bedrock (crystalline or foliated rock) which could have potential bearing capacities ranging from 2,000 to 12,000 psf., respectively. Please see the attached USDA Web Soil Survey Report for your reference. I hope this explanation suffices for your purposes. Please let me know if you have any other questions. Thank you. P a g e 2 | 2 Regards, Elias (Eli) Reese IV, P.E. Structural Project Manager Galloway Attachments to this Letter: USDA Web Soil Survey Report Original Email from John Kupferschmid, Dated 02/08/2023 Map Unit Description The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions in this report, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named, soils that are similar to the named components, and some minor components that differ in use and management from the major soils. Most of the soils similar to the major components have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Some minor components, however, have properties and behavior characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Map Unit Description: Cathedral-Ratake complex, 15 to 35 percent slopes---Estes Park Area, Colorado, Parts of Boulder and Larimer Counties Area of Interest - Hotel Estes Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 2/8/2023 Page 1 of 5 Soils that have profiles that are almost alike make up a soil series. All the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of a given series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha-Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. Additional information about the map units described in this report is available in other soil reports, which give properties of the soils and the limitations, capabilities, and potentials for many uses. Also, the narratives that accompany the soil reports define some of the properties included in the map unit descriptions. Estes Park Area, Colorado, Parts of Boulder and Larimer Counties 51—Cathedral-Ratake complex, 15 to 35 percent slopes Map Unit Setting National map unit symbol: 2lssv Elevation: 7,500 to 8,600 feet Mean annual precipitation: 14 to 20 inches Map Unit Description: Cathedral-Ratake complex, 15 to 35 percent slopes---Estes Park Area, Colorado, Parts of Boulder and Larimer Counties Area of Interest - Hotel Estes Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 2/8/2023 Page 2 of 5 Mean annual air temperature: 41 to 44 degrees F Frost-free period: 95 to 105 days Farmland classification: Not prime farmland Map Unit Composition Cathedral and similar soils:45 percent Ratake and similar soils:40 percent Minor components:15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Cathedral Setting Landform:Hills Landform position (two-dimensional):Backslope Landform position (three-dimensional):Side slope Down-slope shape:Convex Across-slope shape:Linear, convex Parent material:Slope alluvium derived from granite and gneiss Typical profile A - 0 to 3 inches: gravelly coarse sandy loam Bw - 3 to 8 inches: very gravelly sandy loam C - 8 to 18 inches: extremely gravelly sandy loam R - 18 to 28 inches: bedrock Properties and qualities Slope:15 to 35 percent Depth to restrictive feature:8 to 20 inches to lithic bedrock Drainage class:Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat):Very low to moderately low (0.00 to 0.01 in/hr) Depth to water table:More than 80 inches Frequency of flooding:None Frequency of ponding:None Available water supply, 0 to 60 inches: Very low (about 1.7 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6s Hydrologic Soil Group: D Ecological site: F048AY439UT - Mountain Shallow Loam (Ponderosa pine) Other vegetative classification: Ponderosa pine/antelope bitterbrush (PIPO/PUTR2) (C1120) Hydric soil rating: No Description of Ratake Setting Landform:Hills Landform position (two-dimensional):Shoulder Map Unit Description: Cathedral-Ratake complex, 15 to 35 percent slopes---Estes Park Area, Colorado, Parts of Boulder and Larimer Counties Area of Interest - Hotel Estes Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 2/8/2023 Page 3 of 5 Landform position (three-dimensional):Side slope Down-slope shape:Convex Across-slope shape:Linear, convex Parent material:Slope alluvium derived from granite and gneiss over residuum weathered from granite and gneiss Typical profile A - 0 to 2 inches: gravelly sandy loam BA - 2 to 5 inches: very gravelly sandy loam Bw - 5 to 10 inches: very gravelly sandy clay loam Cr - 10 to 20 inches: bedrock Properties and qualities Slope:15 to 35 percent Surface area covered with cobbles, stones or boulders:4.0 percent Depth to restrictive feature:9 to 20 inches to paralithic bedrock Drainage class:Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat):Very low to moderately low (0.00 to 0.06 in/hr) Depth to water table:More than 80 inches Frequency of flooding:None Frequency of ponding:None Maximum salinity:Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Available water supply, 0 to 60 inches: Very low (about 1.3 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6s Hydrologic Soil Group: D Ecological site: F048AY439UT - Mountain Shallow Loam (Ponderosa pine) Other vegetative classification: Ponderosa pine/antelope bitterbrush (PIPO/PUTR2) (C1120) Hydric soil rating: No Minor Components Rock outcrop Percent of map unit:10 percent Landform:Rock pediments Down-slope shape:Convex Across-slope shape:Convex Hydric soil rating: Unranked Cypher Percent of map unit:5 percent Landform:Hills Landform position (two-dimensional):Shoulder, backslope Landform position (three-dimensional):Side slope Down-slope shape:Convex Across-slope shape:Linear, convex Map Unit Description: Cathedral-Ratake complex, 15 to 35 percent slopes---Estes Park Area, Colorado, Parts of Boulder and Larimer Counties Area of Interest - Hotel Estes Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 2/8/2023 Page 4 of 5 Other vegetative classification:Ponderosa pine/antelope bitterbrush (PIPO/PUTR2) (C1120) Hydric soil rating: No Data Source Information Soil Survey Area: Estes Park Area, Colorado, Parts of Boulder and Larimer Counties Survey Area Data: Version 8, Sep 7, 2022 Map Unit Description: Cathedral-Ratake complex, 15 to 35 percent slopes---Estes Park Area, Colorado, Parts of Boulder and Larimer Counties Area of Interest - Hotel Estes Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 2/8/2023 Page 5 of 5 1 Eli Reese From:nathan@kinleybuilt.com Sent:Wednesday, February 8, 2023 1:28 PM To:Eli Reese; 'Hannah Breinig'; 4silverfire@gmail.com; Christian Arndt; Kyle Pollock Cc:Scott Hamman Subject:FW: Plan Review Letter and Marked-up Plans. Commercial Remodel. Hey All, Here is comments from Safebuilt on plans submitted for permit. Eli I’m assuming you will take lead on making sure who responsible for responding to each comment and who is resubmitting plans to Safebuilt? Thanks, Nathan Kinley Kinley Built 351 Moraine Ave, Suite A Estes Park Co. 80517 970-227-4865 www.KinleyBuilt.com From: John Kupferschmid <jkupferschmid@safebuilt.com> Sent: Monday, February 6, 2023 1:23 PM To: nathan@kinleybuilt.com Subject: Plan Review Letter and Marked-up Plans. Commercial Remodel. Please see the links below. Note that the structural plan review is preliminary and will not be completed until the geotechnical report and structural calculations are received. Thank you. I'm using Adobe Acrobat. You can view and comment on "Plan Review Letter - Permit 23EP-00028. Commercial Remodel..pdf" at: https://acrobat.adobe.com/link/review?uri=urn:aaid:scds:US:e95600bf-61be-40c1-ae71-068b5ad4de48 You can view and comment on "Hotel Estes Plans- 1-13-23. Permit 23EP-00028. Commercial Remodel..pdf" at: https://acrobat.adobe.com/link/review?uri=urn:aaid:scds:US:29e561f1-35eb-432a-8355-dab5ff846d67 John Kupferschmid Safebuilt jkupferschmid@safebuilt.com 570-229-2798