Construction Engineer’s Workshop 2019

12
Construction Engineer’s Workshop 2019 Divisions 5, 6, & 8 March 21-22, 2019

Transcript of Construction Engineer’s Workshop 2019

Page 1: Construction Engineer’s Workshop 2019

Construction Engineer’s Workshop 2019Divisions 5, 6, & 8

March 21-22, 2019

Page 2: Construction Engineer’s Workshop 2019

Surveying

2

MEADOWLAND, NORTH CAROLINA

The R-9876 project is a 6.4 mile project on the outskirts of Meadowland, NC. The

scope of the project is to widen US-104, a one lane in each direction facility that

carries 35K vehicles per day to a four-lane median divided facility. However, one

third of the project alignment is going to be new location, which runs along the

edge of an existing neighborhood, who are not happy they will not be getting

noise walls with this project. There are two proposed box culverts at each end of

the project, dual bridges over wetlands in the middle of the new location

alignment portion and a bridge which carries Prosperity Drive over the mainline.

A plan revision was issued just after project award which involved steeping the fill

slopes left of -L- between Station 325+00 to 327+25 to 1.75:1 to avoid a right-of-

way take to Parcel 23.

Clearing and grubbing needs to be Method II due to the environmental concerns

with the pristine streams running nearby the project.

The Division has always requested concrete ROW monuments be installed at the

property corners so that maintenance forces know where to maintain the ROW.

Your office party chief retired last month and there was no one on your staff

ready to backfill this position.

The contractor is known for their aggressive schedule and use of state of the art

technologies with construction equipment. You wisely convinced your DCE to

include contract surveying as a part of the construction contract for this project.

The Contractor has requested they be permitted to use Automated Machine

Guidance to perform the grading work and minimize the staking for the project.

The proposed surveying subcontractor has never worked on a NCDOT project

before but staked many of the lots for the subdivision adjacent to the project.

M

Page 3: Construction Engineer’s Workshop 2019

Surveying Exercise

– Who is performing Surveying in your office– Decide to hold a preconstruction Surveying

Meeting to express expectations– List out the Manual for Construction

Surveying and Section 801 requirements. – What is expected with culvert/bridge Stakeout– Outline who is going to review pipe submittals

Surveying

3

Page 4: Construction Engineer’s Workshop 2019

Surveying Exercise

• Does the contractor know construction Limits

• Make sure ROW is clearly marked• Who is the RE responsible for transmitting

plan revisions to the contractor• How are the project inspectors going to

check grade, pipe, structures, 3-D model,etc.

Surveying

4

Page 5: Construction Engineer’s Workshop 2019

Surveying Exercise

• What is considered Supplemental Surveying and how is it paid?

• How will earth work be measured• Do we have the proper equipment to

check behind the contract surveyor• How can Locations and Survey assist with

administration of this contract• New ROW monuments stakeout

requirements, what are they

Surveying

5

Page 6: Construction Engineer’s Workshop 2019

Manual for Construction Layout

Updates

Page 7: Construction Engineer’s Workshop 2019

Chapter 1 General Information1.4 Preconstruction Survey Meeting Prior to commencing surveying operations on the project and separate to the project preconstruction meeting, a preconstruction survey meeting shall be held.

The meeting should include topics regarding expectations and requirements for submittals, where submittals should be sent for review and who will be reviewing the submittals, review of this manual, anticipated methods for rough and fine grading, the type of equipment and manufacturer’s information for the equipment being used for construction surveying, list of qualified personnel performing survey work and the Responsible in Charge for survey layout, and conformity to this manual of labeling stakes.

The Contractor should bring the following to the Preconstruction Survey Meeting:

– Any required rover or equipment to be supplied to the Department

– List of qualified personnel performing survey work and Responsible in Charge

– Any requested survey methods deviating from the manual for the Department’s review

– Method of staking control points

Page 8: Construction Engineer’s Workshop 2019

Section 801(D) Right of Way, Control of Access and Easements The Department will establish the location of all proposed right-of-way markers, control-of-access markers and permanent easements. Validate the position of the markers and permanent easement locations with those detailed in the plans. Report any discrepancies to the Engineer. Reference the location of all proposed markers and permanent easements. Restore right-of-way and control-of-access monument positions after completion of construction. Set a right-of-way or control-of-access monument cap on an 18 inch (minimum) long #5 reinforcing bar and a carsonite witness stake unless concrete right-of-way and control-of-access markers are specified in the contract. The Department will provide the monument cap and witness stake. Re-establish location of permanent easements after completion of construction and install a permanent easement cap on 18 inch (minimum) long #5 reinforcing bar for monumentation. Re-establishment and verification of existing monuments or the replacement of existing monuments with other material (concrete R/W markers, new iron pins, etc.), shall be performed under the responsible charge of a North Carolina Professional Land Surveyor (PLS). Verify all right of way, permanent easement, and control-of-access monument positions after completion of construction with signed and sealed attestation by PLS of said verification in accordance with the Manual for Construction Layout.

Page 9: Construction Engineer’s Workshop 2019

Chapter 15 Right-of-Way Markers

Unless concrete Right-of-Way markers are specified in the Contract, the Contractor shall install a Right-of-Way monument cap, Control of Access monument cap or Permanent Easement monument cap and appropriate carsonite witness stake at each monumentation shown on the plans that needs to be re-established. Mount the monument cap on a minimum 18" long #5 reinforcing bar, which has been driven flush with the top of the ground. Using a hammer, snugly secure the monument cap to the top of the bar. Install an appropriate carsonite witness stake adjacent to the monument and drive it approximately 12 inches (30 centimeters) into the ground. Avoid damaging the top of the monument cap or witness stake. The Department will provide all Right-of-Way, Control of Access, and Permanent Easement monument caps and witness stakes.

If concrete monuments are specified on the design plans, the Contractor under the responsible charge of a North Carolina Professional Land Surveyor shall install concrete monuments by installing appropriate and accurate additional reference line stakes to properly reference the location of the existing cap and rebar monument location during concrete monument installation or replacement. Concrete monument replacement shall be duly noted for each location on the “Report of Final R/W and Permanent Easement Survey” and attested by the responsible North Carolina Professional Land Surveyor in responsible charge.

Page 10: Construction Engineer’s Workshop 2019

Chapter 15 Right-of-Way Markers

15.2 Submittal Requirements 1. A signed and sealed attestation by a North Carolina Professional Land Surveyor. The attestation shall be verification of all re-established and/or re-placed Right of Way, Permanent Easement, and Control-of-Access monument positions. Verification includes new and existing monuments (including concrete R/W markers, iron pins, caps, etc.). The “Report of Final R/W and Permanent Easement Survey” form shall be completed and submitted to the Resident Engineer upon completion of the installation of all Right-of-Way Markers. Any operations that pose a risk of damage to the location of the markers shall also be reported to the Resident Engineer. A copy of the report shall be forwarded by the Resident Engineer to the appropriate Location & Surveys Unit Regional Project Development Engineer for review and approval. An example of this form can be found in the Appendix of this Manual as well as the procedures to be followed. An electronic, fillable form is located on the NCDOT website at: https://connect.ncdot.gov/resources/Location/Pages/default.aspx

Page 11: Construction Engineer’s Workshop 2019
Page 12: Construction Engineer’s Workshop 2019

The Contractor shall provide the Engineer with one GPS roverunit foruse during the duration of the contract. The rover will be loaded with thesame model that is used with the AMG and have the same capability asrover units used by the Contractor. The rover will be kept in thepossession of the Engineer and will be returned to the Contractor uponcompletion of the contract. Any maintenance or repairs required for therover will be the responsibility of the Contractor. Formal training of atleast 8 hours shall be provided to the Engineer by the Contractor on theuse of the proposed AMG system.