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Home My WebLink About10-039 Daily Field Reports 22 to 24 REPORT OF CONSTRUCTION ACTIVITIES KOECHLEIN CONSULTING ENGINEERS, INC. Geotechnical and Materials Engineers Lakewood—(303)989-1223 Grand Junction—(970)241-7700 To: Town of Vail Job No. 10-039 Date: 9/23/10 Tom Kassmel,P.E. Town Engineer Report#: 22 Sheet: 1 of 1 Department of Public Works/Transportation 1309 Elkhorn Drive Vail,Colorado 81657 Project: Lionshead Transit Center,Vail, Colorado Weather: � Sunny ❑ Cloudy ❑ Rain ❑ Snow Temp: 80°F± Construction Activities/Observations: Field engineer arrived on site, as requested,to observe a proof-roll. The proof-roll was cancelled on site. Therefore,no observations of a proof-roll were performed during this site visit. Mike Brath Scott B. Myers, P.E. Field Observer Reviewed By REPORT OF CONSTRUCTION ACTIVITIES KOECHLEIN CONSULTING ENGINEERS, INC. Geotechnical and Materials Engineers Lakewood—(303)989-1223 Grand Junction—(970)241-7700 To: Town of Vail Job No. 10-039 Date: 9/24/10 Tom Kassmel,P.E. Town Engineer Report#: 23A Sheet: 1 of 4 Department of Public Works/Transportation 1309 Elkhorn Drive Vail,Colorado 81657 Project: Lionshead Transit Center,Vail, Colorado Weather: � Sunny ❑ Cloudy ❑ Rain ❑ Snow Temp: 70°F± Construction Activities/Observations: Field engineer arrived on site, as requested, to meet with FCI and the Town of Vail and to observe the concrete wall-on-grade failure on the west side of the existing parking garage for the pedestrian walkway. The concrete wall-on-grade is approxirnately 1 foot thick and extends along the west side of the existing parking garage. At the time of our observation, a 10 foot section of the wall had been removed. The wall is being supported by e�sting fill. The depth of the e�sting fill varies but could be up to 15 feet. Engineer advised that, in order to reduce the risk of movement, the fill below the area of construction would need to be stabilized. Engineer discussed stabilization options including micro-piles and compaction grouting. Engineer suggested that if the wall is to be reconstructed, that it be redesigned to include footings, so that if future movement occurs, the wall may be stabilized by compaction grouting. Katie Shaw Scott B. Myers, P.E. Field Observer Reviewed By REPORT OF CONSTRUCTION ACTIVITIES KOECHLEIN CONSULTING ENGINEERS, INC. Geotechnical and Materials Engineers Lakewood—(303)989-1223 Grand Junction—(970)241-7700 To: Town of Vail Job No. 10-039 Date: 9/24/10 Tom Kassmel,P.E. Town Engineer Report#: 23B Sheet: 2 of 4 Department of Public Works/Transportation 1309 Elkhorn Drive Vail,Colorado 81657 Project: Lionshead Transit Center,Vail, Colorado Weather: � Sunny ❑ Cloudy ❑ Rain ❑ Snow Temp: 78°F± Construction Activities/Observations: Field engineer arrived on site, as requested, to observe the proof-roll on the eastbound lane of the proposed frontage road from Sta. 6+50 to Sta. 11+00. The material exposed in the subgrade consisted of a silty sand with gravel and small cobbles. The proof-roll was performed using a fully loaded water truck. At the time of this observation, field engineer observed moderate rutting and pumping of the material at appro�mately Sta. 7+00, Sta. 8+25, Sta. 8+75, Sta. 9+50, and Sta. 10+25. These areas varied in lineal feet from 5 to 15 feet. Based on our observations, it is our opinion that these areas need to be stabilized priar to placement of recycled asphalt or base course. The subgrade soils may be stabilized by removing the pumping soils to a depth of 8 inches, placing a Mirafi HP370 ar Mirafi 600X geotextile in the base of the excavation and then placing and compacting granular soils to subgrade elevation. The granular soils may consist of 1 to 3 inch minus gravel or Class 5 or 6 base course material. Mike Brath Scott B. Myers, P.E. Field Observer Reviewed By REINFORCING STEEL (REBAR) OBSERVATION KOECHLEIN CONSULTING ENGINEERS, INC. Geotechnical and Materials Engineers Lakewood—(303)989-1223 Grand Junction—(970)241-7700 To: Town of Vail Job No. 10-039 Date: 9/24/10 Tom Kassmel,P.E. Town Engineer Report#: 23C Sheet: 3 of 4 Department of Public Works/Transportation 1309 Elkhorn Drive Vail,Colorado 81657 Project: Lionshead Transit Center,Vail, Colorado Weather: � Sunny ❑ Cloudy ❑ Rain ❑ Snow Temp: 78°F± Reinforcing Steel (Rebar) Observations: Type of Structure: (Wall, Grade Beam, Footin�, Slab-on-�rade, etc.): Grade Beams Location of Observations: Gridlines E-A.0/E-1.5 to E-3.5 and E-3.5 to E-4 Sheet or Plan Number: 5210, 5312 Meets Project Spec. Grade Beams Rebar: Gridlines E A.0/E-1.5 to E-3.5 yes no Horizontal: Size: 4 - #7 Spacing: Continuous, top and bottom � ❑ Horizontal: Size: 3 - #4 Spacing. Continuous, each side � ❑ Stirrups: Size: #4 Spacing: 1'-0" o.c. � ❑ Vertical: Size: 4 - #6 Spacing: From piles � ❑ Ties: Size: #3 Spacing: 0'-6" o.c. � ❑ Size: Spacing: ❑ ❑ Size: Spacing: ❑ ❑ Size: Spacing: ❑ ❑ Splices:(yes/no) no Length: � ❑ Meets Project Spec. Grade Beams Rebar: Gridlines E 3.5 to E-4 yes no Horizontal: Size: 3 - #7 Spacing. Top and bottom continuous � ❑ Horizontal: Size: 3 - #4 Spacing: Each side continuous � ❑ Stirrups: Size: #4 Spacing: 1'-0" o.c. � ❑ Vertical: Size: #5 Spacing: 1'-0" o.c. � ❑ Size: Spacing: ❑ ❑ Size: Spacing: ❑ ❑ Size: Spacing: ❑ ❑ Size: Spacing: ❑ ❑ Splices:(yes/no) no Length: � ❑ Discrepancies/Remarks: Based on our observations, it is our opinion that the reinforcing steel (rebar) yes no noted in this Daily Field Report has been properly placed and has met project specifications. � ❑ Mike Brath Scott B. Myers, P.E. Field Observer Reviewed By REINFORCING STEEL (REBAR) OBSERVATION KOECHLEIN CONSULTING ENGINEERS, INC. Geotechnical and Materials Engineers Lakewood—(303)989-1223 Grand Junction—(970)241-7700 To: Town of Vail Job No. 10-039 Date: 9/24/10 Tom Kassmel,P.E. Town Engineer Report#: 23D Sheet: 4 of 4 Department of Public Works/Transportation 1309 Elkhorn Drive Vail,Colorado 81657 Project: Lionshead Transit Center,Vail, Colorado Weather: � Sunny ❑ Cloudy ❑ Rain ❑ Snow Temp: 78°F± Reinforcing Steel (Rebar) Observations: Type of Structure: (Wall, Grade Beam, Footin�, Slab-on-�rade, etc.): Footing Keyway Location of Observations: Gridlines E E.3/E-0 to E-1 Sheet or Plan Number: 5200 and 5213-5 Meets Project Spec. Footing Keyway Rebar: Gridlines E E.3/E-0 to E-1 yes no Horizontal: Size: 2 - #5 Spacing: Bottom � ❑ Horizontal: Size: 4 - #5 Spacing: As per plans � ❑ Vertical: Size: #9 Spacing: 1'-0" o.c. � ❑ Size: Spacing: ❑ ❑ Size: Spacing: ❑ ❑ Size: Spacing: ❑ ❑ Size: Spacing: ❑ ❑ Size: Spacing: ❑ ❑ Splices:(yes/no) yes Length: 3'-0" � ❑ Meets Project Spec. Rebar: yes no Size: Spacing: ❑ ❑ Size: Spacing: ❑ ❑ Size: Spacing: ❑ ❑ Size: Spacing: ❑ ❑ Size: Spacing: ❑ ❑ Size: Spacing: ❑ ❑ Size: Spacing: ❑ ❑ Size: Spacing: ❑ ❑ Splices:(yes/no) Length: ❑ ❑ Discrepancies/Remarks: Based on our observations, it is our opinion that the reinforcing steel (rebar) yes no noted 'm this Daily Field Report has been properly placed and has met project specifications. � ❑ Mike Brath Scott B. Myers, P.E. Field Observer Reviewed By SOIL COMPACTION TEST RESULTS To: Town of Vail KOECHLEIN CONSULTING ENGINEERS, INC. Job No. 10-039 Date: 9/24/10 Tom Kassmel,P.E. Report#: 24 Sheet: 1 of 1 Geotechnical and Materials Engineers Town Engineer Lalcewood—(303)989-1223 Subject: Fill Observation and Testine Department of Public Works/Transportation Grand Junction—(970)241-7700 Sidewalk Subgrade and 1309 Elkhorn Drive Sanitary Scwer Line Backfill Vail,Colorado 81657 Lionshead Transit Center Vail,Colorado LaboraYo Field Depth MaJCimum Optimum Test Location or Dry Moisture Dry Moisture Percent Pass/Fail Soil Type No. Elevation Density Content Density Content Compaction (feet) cf� (%) cfl (%) 54 Sidewalk: Sta.00+50 Grade± 142.5 5.6 136.0 4.1 95 Pass Proctor by Others G sum Pit-3/a"ABC 55 Sanitary Sewer Line: Sta. 1+60 -5.0-f- 130.3 7.9 129.7 6.5 100 Pass Curve#1 SAND Gravell Sil 56 Sanitary Sewer Line: Sta.2+00 -3.0± 130.3 7.9 1301 6.2 100 Pass Curve#1 SAND Gravell Sil 57 Sanitary Sewer Line: Sta.2+25 -1.0-�- 130.3 7.9 130.4 6.0 100 Pass Curve#1 SAND Gravell Sil Weather: � Sum� ❑ Cloud ❑ Rain ❑ Snow Tem : 70°F± � Fill Tested Meets Specifications. Specification Compaction&Material: Sidewalk: 95%of Modified Proctor ASTM D ❑ Fill Tested Does Not Meet Specifications as Indicated by Test Number(s) 1557,+2%to-2°/o of Optimum Moisture Content. Sanitarv Sewer Line: 100%of Standard and Should be Removed or Reworked. Proctor AASHTO T 99,+2°/a to-2%of Optimum Moisture Content. Type and Number of Earth Moving Units: 1-Tracichoe � Contractor Advised. ❑ Full Time Observation. � Part Time Observation. Type and Number of Compaction Units: 1-Vibe Skid Plate Progress Report: Field engineer arrived on-site, as requested, to observe and test sidewalk sLibgrade and sanitary sewer line backfill. Test results indicate that moisture and Number of Passes: Varies Thickness of Lift: 8 inches densiry tests performed at the noted locations have met project specifications. Method of Adding Moisture: N/A This re�ort presents opinions formed as a result of our observations and/or compaction testing of the fill during this visit. We have relied o��the contrac[or to continue applying the recommended compactive effort and moisture to the fill during times when our observer is not observing operations. Tests are made of the fill only as believed necessary to calibrate our observer's jud ment. Test data are not tlie sole basis fir o inions on whether the till meets s ecificatious. Mike Brath Scott B. Myers, P.E. Field Observer Reviewed By