ARCHITECTS ENGINEERS PLANNERS

July 11, 1996

Mr. Tom Durm, P.E.

Professional Service Industries, Inc.

4106 West Riverside Street

Riverside, Missouri 64150

Re:	Antioch Road 143rd to 15‑lsf Street

Overland Park, Kansas

HNTB Job No. 24618

Geotechnical Investigations

Gentlemen:

HNTB Corporation has been retained by The City of Overland Park, Kansas, to perform engineering services in connection with the proposed Antioch Road improvements. Geotechnical explorations (drilling and sampling) are included as our responsibility. The HNTB Geotechnical Engineering Department will be responsible for boring surveys, witnessing the field work, logging borings, test assignments, analysis of data, and geotechnical design.

The purpose of this letter is to solicit your priced proposal for performing the Geotechnical Exploration Program. For your use in preparing your proposal we submit the following information:

Suggested Format for Proposal

Summary of Pay Items, Quantities, and Unit Costs

Description of Services

Proposed Boring Location Plan

The proposed drilling depths range between 5 and 30 feet. The proposed depths are considered an estimate. Actual depths drilled could vary considerably from those shown.

You will be responsible for obtaining ROE and access to all boring locations. HNTB will assist in obtaining a list of properties and owners when the contract is awarded.

All work will require the usage of at least two large "Men Working" signs or similar. The cost for providing these signs and cones as needed should be included in the Mobilization Item.

We would appreciate receiving from you by July 18, 1996, two signed copies of the Subcontract Agreement‑ including unit prices for each of the numbered pay items.

The proposed borings for the Antioch Road project will be staked July 12, 1996. As soon as we have a signed acceptable Subcontract Agreement, we will authorize notice to proceed. We anticipate notice to proceed by July 19 and hope to start drilling on July 24, 1996, or as soon as possible thereafter and complete the drilling in a timely manner.

If you have any questions, please call.

Very truly yours,

HNTB CORPORATION

Craig Hulke

Enclosures

cc:	Joe Brand

SUGGESTED FORMAT FOR PROPOSAL

HNTB Corporation

P.O. Box 419299

Kansas City, Missouri 64141

Attn: Mr. Craig W. Hulke

Re:	Proposal For

Drilling, Sampling and Testing Services

Antioch Road 143rd to 151st Street

Overland Park, Kansas

HNTB Job No. 24618

Gentlemen:

In response to HNTB Corporation's letter request of July 11, 1996, we submit the following proposal for providing drilling, sampling, and laboratory testing services for the subject project. We have visited the site of the proposed borings and evaluated rig access to all boring locations.

We understand we are to provide the necessary equipment and personnel for drilling of borings at locations indicated by HNTB. We will obtain right of entry from all property owners, clearances and permits from concerned utility companies to drill at all boring locations. We have evaluated the time schedule and given consideration to the need to minimize rutting. The drilling and sampling will be performed with drills manufactured by	, their designation or	drill rigs. The drill rig will be operated by a driller and a helper.

All borings will be advanced with a 6‑inch diameter, or larger, continuous flight or hollow stem power auger or other approved methods. The soils will be sampled and tested in accordance with the procedures set forth in the applicable ASTM Standards. Bedrock encountered will be sampled with N-series core equipment. All borings will be advanced to a‑ depth as determined by the HNTB Geotechnical personnel.

We understand the number and location of borings and estimated drilling and sampling quantities may be increased or decreased as required for this project without change in unit prices. Prior to leaving the site, all borings will be properly backfilled in accordance with city requirements.

It is anticipated that we can commence drilling within	calendar days after notice to proceed. The field explorations are anticipated to be completed in	calendar days.

We have standard insurance coverages listed below. We will provide certificates of insurance to

HNTB prior to starting field work.

Bodily Injury	$

Automobile	$

Excess Liability‑Umbrella Form	$

Bodily Injury and

Property Damage Combined	$

We are an equal opportunity employer and attempt to hire minority employees when properly qualified for positions available. Our company has a fully implemented Affirmative Action Program in compliance with EEO requirements. Our EEO Compliance Officer is	.

The Summary of Pay Items, Quantities, & Unit Costs given in Attachment A along with Description of Services, Attachment B, are believed to be self‑explanatory. We have included in the Mobilization Item costs for making contacts for right of entry on public and private property and for access to and from boring locations. The Mobilization Item also includes time required for obtaining utility clearance, backfilling of borings, site cleanup, and any other administrative and secretarial time.

If this proposal, with Attachments, A and B, meets with your approval, please indicate acceptance and return one copy to our office.

Very truly yours,

By:

Attachment A ‑ Summary of Pay Items, Quantities, & Unit Costs

Attachment B ‑ Description of Services

PROPOSAL ACCEPTED BY:

HNTB Corporation

By:

Date:

NOTICE TO PROCEED:

HNTB Corporation

By:

Date:

ATTACHMENT A

SUMMARY OF PAY ITEMS, QUANTITIES, & UNIT COSTS

For

Antioch Road 143rd to 151st Street

Overland Park, Kansas

HNTB Job No. 24618

Item	Est.	Unit	Total

No.	Item	Quantity	Cost	Amount

1.	Mobilization	1	Lump

2.	Traffic Control	8 Hrs.

3.	Auger Boring	155 L.F.

4.	Std. Penetration Test Boring (5 ft. intervals)	165 L.F.

5.	N‑Series Rock Core	15 L.F.

6.	3" Undisturbed Samples	6 Ea.

7.	Natural Water Content	6 Ea.

8.	Atterberg Limits	6 Ea.

9.	Dry Unit Weight	6 Ea.

10.	Unconfined Compression (Soil)	3 Ea.

Total

Item	Detailed Description

Mobilization includes the furnishing and removal of all equipment and personnel required to perform the work and all movement of equipment throughout the site except as identified in Item 2. Includes utility clearances, right of entry, clerical time, site cleanup, movement from location to location, and all work and expenses incidental to the project not included in a specific pay item.

Traffic Control includes payment for flagmen, flashing signs requiring a generator or other City or State requirements when drilling through or close to a traveled thoroughfare when control of traffic is deemed necessary for the safety of all concerned.' Control of traffic for ingress or regress to a drilling site shall be considered incidental to the project and not a part of this item. Payment for Traffic Control will not include placing cones near the work site or signs that say "Men Working". These types of signs will be considered incidental and any costs incurred should be included in the cost of Mobilization.

Auger Boring includes payment for all drilling of borings not including Standard Penetration Testing (Item 4). Augering will be in accordance with ASTM D1452‑80, specifically requiring a minimum 6 " auger size and under procedures, paragraph 4. 1, the distance penetrated prior to removal and cleaning will not exceed 3 feet. If, in the opinion of the engineer, an accurate representation of the substrata is not being recorded, the interval of withdrawing and cleaning the auger will be reduced to a maximum of I foot. Augering will include penetration of weathered limestones and shales. Auger refusal will be in agreement with the Engineer and will be defined utilizing a carbide tipped finger bit. Payment for this item will be feet below the ground surface. Material from each layer will be retained for possible laboratory testing.

SPT Boring ‑ borings in which a Standard Penetration Test is performed at five‑foot maximum intervals or at changes in stratum. The method used to advance the boring may be hollow stem augers, mud rotary or other. The method used, however, shall be performed in such a way as to maintain an open hole and minimize disturbance during drilling to the soils in which the SPT sampl6s are obtained. The Standard Penetration Test shall be conducted in accordance with ASTM D 1586‑84, which lists the acceptable apparatus, as well as the procedure for advancing the hole and performing the test. Payment for this item will be in feet below the ground surface and shall include penetration through soils, weathered limestones and all shales when coring has not commenced in the boring. Material from each split spoon sample will be retained for possible laboratory testing. No extra payment will be made for casing, mud, etc.

N‑Series Rock Core ‑ shall be by either double or t riple tube, conventional or wireline methods in accordance with ASTM D 2113‑83. Payment of this item is by feet cored. Payment for providing new waxed cardboard core boxes shall be included in the rock core items. Cleaning of the hole prior to coring or between core runs with a tricone or similar bit will be limited to 6" or less penetration and shall be paid for as SPT drilling footage.

Undisturbed Samples will be obtained at intervals designated by the Engineer and in accordance with ASTM D 1587. Specifically, all samplers will be 3‑inch minimum outside diameter.

Natural Water Content to be determined in accordance with ASTM D 2216‑80.

Atterberg Limits ‑ Liquid and Plastic Limits in accordance with ASTM D 4318.

Dry Unit Weight to be determined in accordance with standard test methods.

Unconfined compression (Soil) to be determined in accordance with ASTM D 2166‑85, including stress‑strain curve.

Attachment B ‑ Description of Services

Following is the Description of Services required for the geotechnical investigation for the Antioch Road 143rd to 151st Street project. The work will consist of performing exploratory borings and laboratory testing, as directed by the Engineer. The purpose of this program is to acquire sufficient geotechnical information for use in design of the roadway and structures associated with the project.

1.0	Boring Locations and Depths

Proposed boring locations are shown on 'the "Proposed Boring Location Plan". These boring locations are approximate and may change. The boring locations will be staked in the field by the geotechnical staff and surveyed by HNTB. Adjustments in the boring locations from the proposed locations may be necessary due to natural obstructions, lack of access, movement of structure locations, and overhead and underground utilities.

The proposed types and depth of borings will be provided to the Contractor as part of the "Proposed Boring Location Plan". These depths are based on the proposed location and may vary to reflect the actual drilling location. The final estimated depth will be available prior to commencing drilling with the actual depth being dependent on the material encountered.

2.0	Proposed Schedule

The following schedule should be considered when preparing proposals:

Award of Contract and Notice to Proceed ‑ July 19, 1996

Boring staking ‑ Week of July 8‑12, 1996

Start ROE, access, utility clearances ‑ July 22, 1996

Start field drilling ‑ July 24, 1996

The work should be performed with a‑minimum of rutting. Acceptable field equipment should be proposed to continue work and minimize rutting even if the ground should be soft. Payment should be included in the mobilization or other pay items.

3.0	Utility Clearances

The Contractor shall be responsible in advance of drilling for clearing all boring locations with respect to underground and overhead utilities. The Contractor shall be responsible to contact each concerned utility and if ‑necessary schedule their personnel to meet the utility for an on‑site inspection of the proposed location.

The Contractor shall be liable for any property damage, any disruption of service, and/or personal injury from any damage to any underground or overhead utility caused by their drilling and/or sampling operations.

Costs for clearing utilities shall be included in the mobilization item.

4.0	Right of Entry Clearance

The Contractor shall be responsible for obtaining right‑of‑entry (ROE) to all properties and obtaining all necessary permits to drill the proposed borings as located. The Engineer and City will provide a listing of property owners to assist the Contractor in obtaining ROE and access to boring locations. Should access be denied to perform any borings as planned, the Engineer should be notified immediately. Costs for performing right of entry shall be included in the mobilization item.

5.0	As‑Drilled Boring Locations

Boring locations may be moved from their “as‑staked” locations due to natural obstructions, refusal of right of entry, and/or utilities with the approval of the Engineer. The Engineer will be responsible for obtaining the as‑drilled boring locations.

6.0	Personnel

The Engineer shall furnish a qualified Engineer, Engineering Technician, or Geologist to approve any changes in boring location, provide horizontal and vertical boring locations, prioritize drilling

locations, provide final drilling depths, request additional drilling and sampling, determine the final depth of boring, log the borings, and to advise the contractor as to the contents of this contract.

The Contractor shall provide as a minimum a full time drill rig and two man crew. It will be the crew's responsibility to operate the drill rig, perform sampling as directed by the Engineer, label and preserve all samples obtained and to pursue field operations in an orderly, professional effectively executed manner. The Contractor shall make available one additional person to be responsible for all clearances mentioned in Items 3 and 4, making this person available as necessary to resolve any possible conflict that may arise during the time of drilling.

7.0	Packaging of Soil Samliles

Soil samples shall be prepared for storage and shipment to the laboratory using the following procedure. It will be the Contractor's responsibility to label and care for all soil samples and deliver them to the laboratory for testing.

Disturbed soil samples from split spoon or auger cutting samples shall be placed into a sealable container and labeled to indicate: the project name, boring number, depths at top and bottom of sample interval, recovery, number of sample, number of blows for each 6 inches of penetration, the date of sampling, and any other information required by the Contractor to maintain an orderly storage/retrieval system for the samples. Undisturbed samples shall be sealed to prevent moisture loss and labeled as indicated for disturbed samples.

One sample shall be saved for each material encountered in each boring.

Storage of the samples shall protect them from breakage, heat, freezing, etc. and any other occurrence that could render the sample untestable. The Contractor will store‑untested samples for a minimum of 60 days after the final completion of the Contract.

8.0	Boring Logs

The Engineer will keep and provide the Contractor with a copy of the field log at the end of each days work. This will be used by the Contractor to monitor progress and prepare the project billing. The Engineer is responsible for the final log of borings.

9.0	Hazardous Materials

The scope of work does not include investigation of hazardous materials sites. Should potential hazardous materials be encountered in any boring, the boring will be terminated and the proper City authorities notified. Possible extra costs may be incurred to clean up the rig and materials encountered.

10.0	Site Cleanup

After completion of the borings, site cleanup of the boring site shall be performed to the satisfaction of the Engineer.

11.	Laboratory Testing

The Engineer will assign laboratory tests to appropriate soil and rock samples. The Contractor will perform the tests according to the standard ASTM procedures or methods approved by the Engineer.

12.0	Backfill of Borings

Upon completion of each boring and final water level measurements, the boring, shall be properly backfilled with cuttings, available soil materials or special materials as required and pavement patched where penetrated.

HNTB

1201 Walnut

Suite 700

Kansas City, Missouri

64106

PO Box 412199

Kansas City, Missour

64141

(816) 472-1201

FAX (816) 472-1060

Geotechnical RFP

Jackie Clark

1999-03-26

Joe Archer

City of Overland Park