Category:627 Contractor Surveying and Staking - Revision history

Smithk: updated links

2016-06-09T15:37:03Z

updated links

← Older revision		Revision as of 10:37, 9 June 2016
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	Refer to [http://www.modot.~~mo.gov~~/business/standards_and_specs/~~Sec0627~~.pdf Sec 627] for specifications concerning contractor surveying and staking.		Refer to [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=9 Sec 627] for specifications concerning contractor surveying and staking.

	Additional guidance concerning contractor staking procedures are contained in [[238.4 Construction Surveying#238.4.27 Contractor staking (see Section 627)\|EPG 238.4.27 Contractor Staking]].		Additional guidance concerning contractor staking procedures are contained in [[238.4 Construction Surveying#238.4.27 Contractor staking (see Section 627)\|EPG 238.4.27 Contractor Staking]].

	==Construction Inspection Guidelines for [http://www.modot.~~mo.gov~~/business/standards_and_specs/~~Sec0627~~.pdf Sec 627]==		==Construction Inspection Guidelines for [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=9 Sec 627]==

	===Contractor Furnished Surveying and Staking Pre-Construciton Checklist===		===Contractor Furnished Surveying and Staking Pre-Construciton Checklist===

Smithk: minor clarification

2010-04-05T13:05:38Z

minor clarification

← Older revision		Revision as of 08:05, 5 April 2010
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	Refer to [http://www.modot.mo.gov/business/standards_and_specs/Sec0627.pdf Sec 627] for specifications concerning contractor surveying and staking.		Refer to [http://www.modot.mo.gov/business/standards_and_specs/Sec0627.pdf Sec 627] for specifications concerning contractor surveying and staking.

	Additional guidance concerning contractor staking procedures are contained in [[238.4 Construction Surveying#238.4.27 Contractor staking (see Section 627)\|238.4.27 Contractor Staking]].		Additional guidance concerning contractor staking procedures are contained in [[238.4 Construction Surveying#238.4.27 Contractor staking (see Section 627)\|EPG 238.4.27 Contractor Staking]].

	==Construction Inspection Guidelines for [http://www.modot.mo.gov/business/standards_and_specs/Sec0627.pdf Sec 627]==		==Construction Inspection Guidelines for [http://www.modot.mo.gov/business/standards_and_specs/Sec0627.pdf Sec 627]==

Smithk: /* Guidance for Checking Contractor Surveying and Staking */article construction

2009-11-04T16:34:34Z

Guidance for Checking Contractor Surveying and Staking: article construction

← Older revision		Revision as of 11:34, 4 November 2009
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	The following is a guideline only. Check something that doesn’t look right.		The following is a guideline only. Check something that doesn’t look right.

	:'''Structures:''' On a bridge each stake should be checked. The check should be within		:'''Structures:''' On a bridge each stake should be checked. The check should be within 0.01 ft. for vertical and horizontal. *Surveyors and inspectors should note that the end bents should be staked at the fill face and not centerline of bent. This is a common problem, which has often resulted in piling driven at the wrong location.
	0.01 ft. for vertical and horizontal. *Surveyors and inspectors should note that the end bents should be staked at the fill face and not centerline of bent. This is a common problem, which has often resulted in piling driven at the wrong location.

	:'''Culverts:''' Each stake should be checked. The vertical and horizontal tolerance should		:'''Culverts:''' Each stake should be checked. The vertical and horizontal tolerance should be within 0.5 in.
	be within 0.5 in.

	:'''Pipes:''' Pipes stakes should check within 0.1 ft. Some pipes have a very flat grade. Always check to make sure the pipe will still flow correctly within the tolerances surveyed.		:'''Pipes:''' Pipes stakes should check within 0.1 ft. Some pipes have a very flat grade. Always check to make sure the pipe will still flow correctly within the tolerances surveyed.
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	:'''Retaining Walls:''' Each stake should be checked. The tolerance should be within 0.04 ft. horizontal and vertical.		:'''Retaining Walls:''' Each stake should be checked. The tolerance should be within 0.04 ft. horizontal and vertical.

	:'''Drop Inlets:''' Tolerance 0.04 ft. if in the roadway and 0.10 ft. if it falls outside the		:'''Drop Inlets:''' Tolerance 0.04 ft. if in the roadway and 0.10 ft. if it falls outside the roadway.
	roadway.

	:'''Slope Stakes:''' The entire cross section should be checked every 500 ft. The slope stake (or first cut stake. Tolerance should be within 0.2 ft.		:'''Slope Stakes:''' The entire cross section should be checked every 500 ft. The slope stake (or first cut stake. Tolerance should be within 0.2 ft.

Smithk: /* Contractor Furnished Surveying and Staking Pre-Construciton Checklist */Inserted newly edited checklist

2009-11-04T15:58:12Z

Contractor Furnished Surveying and Staking Pre-Construciton Checklist: Inserted newly edited checklist

← Older revision		Revision as of 10:58, 4 November 2009
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	\|'''Checklist and Guidance'''		\|'''Checklist and Guidance'''
	\|-		\|-
	\|[~~http~~:~~//epg.modot.org/documents/Pre-ConstructionChecklist~~.doc Contractor Furnished Surveying and Staking Pre-Construction Checklist]		\|[[media:627 Preconstruction Checklist.doc\|Contractor Furnished Surveying and Staking Pre-Construction Checklist]]
	\|-		\|-
	\|[[media:627.jpg\|Guidance for Checking Contractor Surveying and Staking]]		\|[[media:627.jpg\|Guidance for Checking Contractor Surveying and Staking]]

Smithk: article construction

2009-07-21T15:44:10Z

article construction

← Older revision		Revision as of 10:44, 21 July 2009
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	:'''Paving Grades:''' Everything should be set to finish grade. Checks should be made not only at the individual stake but also at the next stake forward and backward. It is recommended to produce a Doc. Record with a diagram of the way the pavement is staked. This assures both parties are in concurrence. Grading and Paving contractor’s often like things staked differently. Hub Line tolerances should be horizontal 0.10 ft. and vertical 0.04 ft.		:'''Paving Grades:''' Everything should be set to finish grade. Checks should be made not only at the individual stake but also at the next stake forward and backward. It is recommended to produce a Doc. Record with a diagram of the way the pavement is staked. This assures both parties are in concurrence. Grading and Paving contractor’s often like things staked differently. Hub Line tolerances should be horizontal 0.10 ft. and vertical 0.04 ft.
			[[image:627 staking.jpg\|center\|775px]]

Smithk: article construction

2009-07-17T14:24:51Z

article construction

← Older revision		Revision as of 09:24, 17 July 2009
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	Refer to [http://www.modot.mo.gov/business/standards_and_specs/Sec0627.pdf Sec 627] for specifications concerning contractor surveying and staking.		Refer to [http://www.modot.mo.gov/business/standards_and_specs/Sec0627.pdf Sec 627] for specifications concerning contractor surveying and staking.

	Additional guidance concerning contractor staking procedures are contained in [[238.4 Construction Surveying#238.4.1.27 Contractor staking (see Section 627)\|238.4.1.27 Contractor Staking]].		Additional guidance concerning contractor staking procedures are contained in [[238.4 Construction Surveying#238.4.27 Contractor staking (see Section 627)\|238.4.27 Contractor Staking]].

	==Construction Inspection Guidelines for [http://www.modot.mo.gov/business/standards_and_specs/Sec0627.pdf Sec 627]==		==Construction Inspection Guidelines for [http://www.modot.mo.gov/business/standards_and_specs/Sec0627.pdf Sec 627]==

EPG-Admin: add link to Spec 627

2008-03-05T20:47:53Z

add link to Spec 627

← Older revision		Revision as of 15:47, 5 March 2008
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	Additional guidance concerning contractor staking procedures are contained in [[238.4 Construction Surveying#238.4.1.27 Contractor staking (see Section 627)\|238.4.1.27 Contractor Staking]].		Additional guidance concerning contractor staking procedures are contained in [[238.4 Construction Surveying#238.4.1.27 Contractor staking (see Section 627)\|238.4.1.27 Contractor Staking]].

	==Construction Inspection Guidelines for Sec 627==		==Construction Inspection Guidelines for [http://www.modot.mo.gov/business/standards_and_specs/Sec0627.pdf Sec 627]==

	===Contractor Furnished Surveying and Staking Pre-Construciton Checklist===		===Contractor Furnished Surveying and Staking Pre-Construciton Checklist===

Smithk: article construction

2008-02-11T14:29:18Z

article construction

← Older revision		Revision as of 09:29, 11 February 2008
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	===Contractor Furnished Surveying and Staking Pre-Construciton Checklist===		===Contractor Furnished Surveying and Staking Pre-Construciton Checklist===
			{\|style="padding: 0.3em; margin-left:1px; border:2px solid #a9a9a9; text-align:center; font-size: 95%; background:#f5f5f5" width="260px" align="right"
			\|-
			\|'''Checklist and Guidance'''
			\|-
			\|[http://epg.modot.org/documents/Pre-ConstructionChecklist.doc Contractor Furnished Surveying and Staking Pre-Construction Checklist]
			\|-
			\|[[media:627.jpg\|Guidance for Checking Contractor Surveying and Staking]]
			\|}
	The contractor’s surveyor is expected to perform the staking required by the contract. MoDOT surveyors are not to be used as back-ups if the contractor’s surveyors are unavailable.		The contractor’s surveyor is expected to perform the staking required by the contract. MoDOT surveyors are not to be used as back-ups if the contractor’s surveyors are unavailable.

Smithk: info from construction manual

2007-09-11T16:22:17Z

info from construction manual

← Older revision		Revision as of 11:22, 11 September 2007
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	Additional guidance concerning contractor staking procedures are contained in [[238.4 Construction Surveying#238.4.1.27 Contractor staking (see Section 627)\|238.4.1.27 Contractor Staking]].		Additional guidance concerning contractor staking procedures are contained in [[238.4 Construction Surveying#238.4.1.27 Contractor staking (see Section 627)\|238.4.1.27 Contractor Staking]].

			==Construction Inspection Guidelines for Sec 627==

			===Contractor Furnished Surveying and Staking Pre-Construciton Checklist===

			The contractor’s surveyor is expected to perform the staking required by the contract. MoDOT surveyors are not to be used as back-ups if the contractor’s surveyors are unavailable.

			MoDOT will furnish the contractor’s surveyor with additional working points and benchmarks
			prior to the beginning of construction if needed.

			The contractor’s surveyor should make working points available to MoDOT upon request.

			MoDOT will check all staking of larger structures such as box culverts and bridges. (Try to give a 2-day notice as to when these will be ready for checking.)

			MoDOT will spot-check the staking of smaller structures, slope stakes and paving grades. General guidance on the frequency and tolerance of checks is found in the Engineering Policy Guide.

			If the contractors surveying is outside of tolerance they will be notified to correct in writing. The contractor is responsible for final line and grade of the end product. The contractor’s surveyor should provide enough information and staking upon request so MoDOT can
			adequately check the staking on the project.

			Staking the profile outlined in the specifications may not be required for each project,
			depending on the scope of the work.

			The clearing limits are generally marked 10 ft. beyond the planned slope line to allow for
			grading and the adjustment of slope-stakes to fit original ground.

			MoDOT will survey everything directly related to pay.

			The contractor should maintain adequate working points during and after construction. (Working points may be needed for staking R/W after construction is completed.)

			The surveyor is considered a subcontractor with the same requirements of any sub with the exception of certified payrolls. This work is considered a non-regulated job so no prevailing
			wage rates are required.

			Utilities that may have to be staked should be done by MoDOT or should be considered
			additional work by the contractor and compensated.

			===Guidance for Checking Contractor Surveying and Staking===

			Quality assurance checks by MoDOT do not relieve the contractor of his responsibility to construct the project to the specified lines and grades. Our checks are to identify any contractor staking errors to minimize any adverse impacts to the project. They are also to help spot any plan errors. The contractor should be willing to assist in any checks. It is in both parties interest to catch any busts early on. They should place any additional stakes necessary for MoDOT to properly check their surveying. If a contractor’s instrument and ours do not agree a third instrument should be brought in to find out what equipment is out of calibration.

			The following is a guideline only. Check something that doesn’t look right.

			:'''Structures:''' On a bridge each stake should be checked. The check should be within
			0.01 ft. for vertical and horizontal. *Surveyors and inspectors should note that the end bents should be staked at the fill face and not centerline of bent. This is a common problem, which has often resulted in piling driven at the wrong location.

			:'''Culverts:''' Each stake should be checked. The vertical and horizontal tolerance should
			be within 0.5 in.

			:'''Pipes:''' Pipes stakes should check within 0.1 ft. Some pipes have a very flat grade. Always check to make sure the pipe will still flow correctly within the tolerances surveyed.

			:'''Retaining Walls:''' Each stake should be checked. The tolerance should be within 0.04 ft. horizontal and vertical.

			:'''Drop Inlets:''' Tolerance 0.04 ft. if in the roadway and 0.10 ft. if it falls outside the
			roadway.

			:'''Slope Stakes:''' The entire cross section should be checked every 500 ft. The slope stake (or first cut stake. Tolerance should be within 0.2 ft.

			:'''Paving Grades:''' Everything should be set to finish grade. Checks should be made not only at the individual stake but also at the next stake forward and backward. It is recommended to produce a Doc. Record with a diagram of the way the pavement is staked. This assures both parties are in concurrence. Grading and Paving contractor’s often like things staked differently. Hub Line tolerances should be horizontal 0.10 ft. and vertical 0.04 ft.

EPG-Admin: new article

2007-09-06T13:14:33Z

new article

New page

Refer to [http://www.modot.mo.gov/business/standards_and_specs/Sec0627.pdf Sec 627] for specifications concerning contractor surveying and staking.

Additional guidance concerning contractor staking procedures are contained in [[238.4 Construction Surveying#238.4.1.27 Contractor staking (see Section 627)|238.4.1.27 Contractor Staking]].