401Pavement Smoothness Measurement

401.1 Description

This Work consists of providi ng and using profile testing Equi pment that incorporates the Mean Roughness Index (MRI) measurement for the established cate gories provided within this Section. The MRI is the average International Roughness I ndex (IRI) of left and right wheel paths. Unless otherwise specified in the Contract, Category One (1) T able 401.5.1.1:1, “MRI Based Profile Pay Adjustment Schedule for Category I HMA/WMA Pr ojects,” will be applicable to all Hot Mix Asphalt (HMA)/Warm Mix Asphalt (WMA) Projects. Unless otherwise specified in the Contract, Table 401.5.1.2:1, “MRI Based Profile Pay Adju stment Schedule for PCCP Projects” – Category I will be applicable to all Portland Cemen t Concrete Pavement (PCCP) Projects. This Specification applies to a ll construction Projects, with one (1) opportunity for pavement smoothness. An example of one (1) opportunity for pav ement smoothness is a single lift of paving operations for HMA/WMA or PCCP. References to Open Graded Friction Course (OGFC} in Section 40 1, “Pavement Smoothness Measurement” include OGFC, WMA-OGFC, and Rubberized Open Graded Friction Course (ROGFC).

401.2 MATERIALS—Reserved

401.3 Construction Requirements

401.3.1 Inertial Profiler

The Contractor shall provide an inertial profiler that meets t he requirements of AASHTO M 328 “Inertial Profiler,” or a State Materials Bureau’s approv ed equal. The Inertial Profiler shall use dual height and vertical acceleration sensors. The h eight sensors shall have a centerline distance of seventy (7 0.0) inches ± one (1.0) inch b etween sensors.

401.3.1 1 Inertial Profiler Calibration and Certification

The inertial profiler shall be certified in accordance with the Department’s Standard Practice “Certification of Inertial Profilers.” Inertial Profiler used for Acceptance testing on NMDOT Projects shall have a current TTCP annual calibration sti cker or manufacturer’s calibration and certification certificate. The manufacturer’s certificate is valid only until the date of the next TTCP sponsored profile measuring device certif ication. The Contractor shall verify the accuracy of the horizontal and vertical sensors daily in accordance with the manufacturer’s and TTCP procedures. If the inertial profiler is used on multiple Projects in one (1) day, verification of the horizonta l and vertical sensors will be required before use on each Project. The Contractor shall perf orm verifications in the presence of the representative designated by the Project Manage r. The Project Manager may require additional verifications. The Contractor shall provide documentation to the Project Manager and maintain copies of t he verifications documentation and manufacturer’s procedures. The Contractor shall remove the inertial profiler from the Pro ject if it does not meet the manufacturer’s verification and calibration requirements. The Project Manager will report the TTCP inertial profiler certification number to the TTCP Adminis trator in order to provide Section 401: Pavement Smoothness Measurement Page 142 notification that the Contractor cannot use the machine on othe r Projects until inertial profiler obtains re-certification. Once the manufacturer re-certifies t he inertial profiler, provide a copy of the certificate to the Department’s TTCP Administrator. The TTCP Administrator will provide a temporary TTCP certification valid until the next sch eduled certification.

401.3.1 2 Technician Certification

The Department’s TTCP will certify individuals performing prof ile measurement. The Department will base certification on demonstrated ability and a written test. The TTCP will establish the term and expiration date of certification and req uirements for renewal. The Department State Materials Engineer, through the TTCP, will inv estigate any concerns submitted in writing as to the competence of a certified indivi dual and implement corrective action if necessary in accordance with the TTCP Board of Direct ors established procedures.

401.3.1 3 Profile Measurements

The Department will consider profile testing as part of the pa ving operation. The Contractor shall provide the proposed frequency and schedu le for profile testing to the Project Manager no later than the Pre-Paving Conference. The Contractor shall collect raw profile data utilizing the in itial profiler’s settings used during the TTCP “Certification of Inertial Profilers” process. For HMA/WMA/OGFC data collection, an upper wavelength cutoff filter of 300 feet shall be applied. For PCCP data collection, the Contractor shall use a Butterworth Band-Pass fi lter short cutoff wavelength of 0.5 ft and a long cutoff wavelength of 300 ft. The Contractor shall allow the Department’s Representative to witness the collection of raw data by riding in the vehicle while collecting the data. The Contractor shall export all raw profile data to create fil es conforming to the University of Michigan Transportation Resear ch Institute’s Engineering Res earch Division (ERD) format. The Contractor shall provide the collected data in ERD format, along with the current calibration documentation on either a CD or Universal Serial Bu s (USB) memory storage device to the accompanying Department representative, within on e (1) hour after the data has been collected. The Contractor shall provide additional data f iles or text files upon request by the Project Manager or Department’s Representative. If the Contractor does not submit the profile measurements fil es within one (1) hour, the Department may alter the Pay Adjustments according to the pavem ent type and category established for the Project by a pplying an additional five perc ent (5%) price deduction to the total price reduction for the Profiled area in question. T h e C o n t r a c t o r s h a l l m a i n t a i n t h e p r o f i l e d a t a f i l e s . T a k e a dditional profiles to retest paved surfaces that have received corrective Work. The Project Manager may require additional profiles to check previously submitted data or to id entify the limits of surface irregularities. The Contractor shall include the following inf ormation for each data file: 1. Project number, 2. Date, 3. Lane profiled, 4. Beginning and ending stations, 5. Net total linear feet of each lane, 6. Filter settings, and Section 401: Pavement Smoothness Measurement Page 143 7. Operator’s signature.

401.3.1 4 Inertial Profiler Operations

The Contractor shall obtain the Project Manager’s approval and sweep the Roadway surface before beginning profile operations. The Contractor shall operate and maintain the inertial profile r in accordance with AASHTO R 57 “Operating Inertial Profiling Systems” and manufact urer’s recommendations and procedures established by TTCP. The inertial profiler shal l be equipped with dual- sensors, bar lasers up to four (4.0) inches long, that measures the profile traces for each wheel path. The Contractor shall measure the longitudinal smoothness of th e final surface of HMA, WMA, OGFC, and PCCP using a Depa rtment certified inertial profi ler. The Contractor shall operate the device on the driving surface of the Roadway at the manufacturer's recommended speed without interfering with traffic or its own operation. The Contractor shall measure the profile traces for each wheel path at the outside trace three (3) feet from and parallel to the approximate location of the pavement edge line. For the transverse joints, at the beginning of Project (BOP) a nd end of project (EOP), the first one hundred (100) feet before and after the transverse jo int shall be excluded from the data used to determine price adjustments. For Bridge approach and departure tie-ins, the one hundred (100) feet before approach and after departure shall be excluded from the data used to determine price adjustments. The areas excluded shall be ev aluated in accordance with Section 401.3.1, “Straightedge Measurements (Category III).” S ee Section 401.5.1, “Pay Adjustments” for more information. On HMA/WMA/OGFC Projects, the Contractor shall perform profile measurements and corrective actions on the final surface of HMA/WMA. The final surface is the surface immediately behind the paving oper ations prior to any surface m odification. PCCP Projects, perform profile measurements and corrective actions on the fini shed surface after tining or grooving.

401.3.1 5 ProVAL Profile Data Analysis by the Department

The Department will use the current version of “ProVAL” softwar e to determine the MRI for each 0.1 mile section of each lane, reported to the nearest 0.1 inch per mile using the average of the two (2) wheel paths’ IRI’s, using Ride Quality A nalysis. Using the ProVAL software, the Department will apply the 250 mm filter in “ProVA L.” The Contractor shall export the data with no filters applied. Data obtained through analys is by the Depa rtment will be used for evaluations of all “Mus t Grind Work,” “Corrective Work ,” and “Pay Adjustments.”

401.3.2 Straightedge Measurements (Category III)

The Contractor shall test the final surface of HMA, WMA, or PC CP with an approved profile measurement device that complies with Section 401.3.1, “Inertial Profiler.” The Project Manager will analyze the profile in the current version of ProV AL utilizing the Rolling Straightedge with a ten (10) foot straightedge length and Devia tion Threshold of 0.25 inches. The Contractor shall correct surface deviations greater than ¼ inch within ten (10) ft, as directed by the Project Manager. Upon completion of the profile measurement and before correcti ve measures, the Contractor may request in writing for approval by the Project M anager to drive the area Section 401: Pavement Smoothness Measurement Page 144 profiled with the Project Manager to verify any surface deviati ons. Areas in question shall be validated with a ten (10) foot mechanical straightedge at both right angles and parallel to centerline to validate ¼ inch surface deviation. Areas ¼ inch and greater surface deviation in ten (10) feet shall be corrected. In lieu of a profile measurement device the Contractor may req uest in writing for approval by the Project Manager to use a physical ten (10) foot straight edge. If approved the Contractor shall use Contractor’s personnel, to measure with a physical ten (10) foot straightedge measurement at both right angles and parallel to t he centerline, advancing the straightedge in five (5) foot increments in the presence of the Project Manager or his designee. The Contractor shall correct surface deviations grea ter than ¼ inch within ten

401.3.3 Evaluation for Must Grind Work and Corrective Work

The Contractor shall evaluate the pavement in 0.1-mile section s for determining needed Must Grind Work, Corrective Work, and Pay Adjustments.

401.3.4 Diamond Grinding

Diamond grinding Equipment uses diamond tipped saw blades, com posed of industrial diamonds and metallurgical powder that are gang mounted on a cu tting head ranging in width from 36 inches to 48 inches. The diamond grinding Equipment sh all use water to cool the cutting head. The slurry or residue resulting from the grindin g operation shall be continuously removed from the pavement with a wet vacuum process. The slurr y or residue shall not be allowed to flow across lanes occupied by traffic or to flow int o gutters or other drainage facilities. Diamond grinding Equipment shall be self-propelled , self-contained and without external attachments acting as cutting / grinding devices. Diamond grinding operations of the final HMA/WMA lift shall no t dislodge aggregate or binder creating rock pockets or deviations on pavement surface. If occurring, the Contractor shall cease operation and notify the Project Manager and submit a corrective action Plan for approval.

401.3.5 Corrective Work/Must Grind Work

The Contractor shall identify potential must grind locations u sing “Ride Quality Analysis” under the “Analysis Type” with the “Continuous” feature of the latest version of the FHWA’s “ProVAL” software. The Contractor shall use a MRI threshold (i nch/mi) of 105.00 and a segment length of 25.00 feet. The Contractor shall identify mu st grind locations for each lane using the “MRI” Ride Quality Index feature of ProVAL. Any loca tions with a MRI of 105.00 to

140.00 will be evaluated by the Project Manager and the Contrac tor, to determine if diamond

grinding is required, final determination will be made by the P roject Manager. All locations with an MRI above 140.00 must be corrected. Localized roughnes s defining the must grind areas shall be limited to the extent of the area to be correcte d. Must grinds shall not extend the entire length of the 0.1-mile section. The Contractor shall develop a written corrective Work/must gr ind Plan and submit for approval by the Project Manager. This plan shall include metho ds and procedures to be utilized to achieve the specified MRI values for “Corrective Wo rk Required” (CWR) sections for Section 401: Pavement Smoothness Measurement Page 145 the specified category indicated in the Contract or determined to be a must grind. Upon approval of the Plan, the Contractor shall complete corrective Work/must grinds, including necessary traffic control, at no additional cost to the Departm ent. After completion of the corrective Work/must grinds, re-profile the corrected area to v erify compliance with Specification requirements. Re-profiled areas will receive a m aximum pay adjustment of 0.00 ($/sy). The Contractor shall limit corrective Work/must grinds to diam ond grinding, overlaying, or removing and replacing rejected 0.1-mile sections. The Contra ctor shall not begin corrective Work/must grinds until the Project Manager approves the methods and procedures in writing. The Project Manager’s approval does not relieve the Contractor of the responsibility to comply with the Specifications. The Contractor shall perform corrective Work/must grinds in ac cordance with the following: 1. Surface Diamond Grinding. Use diamond grinding to bring the measured “CWR” or must grind areas in accordance with the applicable table(s), category (ies), and Specifications as indicated in the Contract. Grind corrective Work/must grind areas to produce a smooth tran sition to the surrounding pavement. If the corrective Work or must grind are as are not the full width of the lane, only half of the lane containing the correct ive Work or must grind area shall be ground and smoothly feathered into the surroundin g pavement. Do not reduce planned pavement thickness by more than 0.3 inche s without written approval of the Project Manager. For HMA/WMA, if the Contract does not require an OGFC/ROGFC/WOG FC, or OGFC will not be placed before Project Suspension, apply a fog seal to the ground areas as approved by the Project Manager. All operations neces sary to apply fog seal will be Incidental to the Bid Item Unit Price for HMA/WMA; the Department will make no separate payment. For PCCP, perform additional diam ond grinding as necessary in t he following situations: 1.1. The transverse direction, so the lateral diamond grinding limits are at a constant offset from and parallel to the nearest lane line or p avement edge; and 1.2. The longitudinal direction, so the diamond grinding begins and ends at lines perpendicular to the pavement centerline. Maintain diamond gri nding locations as neat rectangular areas of uniform appearance. If tining is eliminated by diamond grinding, machine groove the hardened concrete in the s ame pattern as adjacent tining at no additi onal cost to the Department. 2. Overlaying. If the Contractor uses an additional lift of HMA/WMA to correct rough pavement, the HMA/WMA shall meet the requirements of the approp riate Specification. Extend the overlay lift the full width of the u nderlying pavement surface to a finished compacted thickness sufficient to correct the existing pavement roughness. The Department will not allow a second overlay if the first ove rlay does not meet the longitudinal smoothness requirement. Correct a corrective overlay that does not meet the smoothness requirement by diamond grinding or removing and r eplacing as specified in Sect ion 401.3.5, “Corrective Work/Must Grind Work.” 3. Removing and Replacing. Remove pavement the full width of t he lane and the full thickness of the course. The removal area shall begin and end with a transverse Section 401: Pavement Smoothness Measurement Page 146 saw cut perpendicular to centerline. Use the type of approved HMA, WMA or PCCP as originally specified in the Pr oject Contract as replacement Material. 4. Extrapolation. For Category I and II, after grinding, in li eu of items 2 and 3 above, the Contractor may use this option with the Project Manager and District Construction Engineer’s approval. The Contractor may request i n writing, areas in CWR to remain in place and use an extrapolated value from the a ppropriate Table ## below. The Contractor shall re-profile the 0.1 mile section of travel lane after performing corrective Work/must grinds and use the re-profile’s reported m easured smoothness data to represent the particular section for Pay Adjustment purposes in accordance with Section 401.5, “Basis of Payment.”

401.3.6 OGFC Placement and Profile Measurement

The Contractor shall ensure HMA/WMA profile measurements, corr ective work/must grinds have been completed befo re placing OGFC. Pay Adjustment will be based on the MRI of the final surface of HMA/WMA unless the measured MRI of the OGFC is greater than the measured MRI of the HMA/WMA on the same 0.1 mile section, then the Department will base the Pay Adjustment for the HMA/WMA section on the OGFC’s measur ed MRI.

401.3.7 Independent Assurance Testing

The Department may perform Independent Assurance testing with a Department certified Inertial Profiler from a District Laboratory in order to verify and compare Contractor obtained data.

401.4 Method of Measurement

The Department will determine smoothness Pay Adjustments on th e calculated square yards of the surface area of the travel lane bound by the plan typical section travel lanes and 0.1-mile lane length.

401.5 Basis of Payment

Surface smoothness testing and corrective Work/must grinds to bring the final surface within Specification smoothness in accordance with the applicab le table(s) and category (ies) as indicated in the Contract is Incidental to the Bid Item Unit Price for HMA, WMA, or PCCP; the Department will make no separate payment. All traffic cont rol required to determine and correct pavement smoothness is I ncidental to the HMA, WMA, or P CCP item. All adjustments of manhole and utility valves for the facilita tion of pavement smoothness shall be performed after paving of the finish grade. This Work shall be paid in accordance with Section 662, “Manholes” and 663 “Utility Items.”

401.5.1 Pay Adjustments

The Department will calculate a Pay Adjustment for each 0.1 mi le section of travel lane. The Pay Adjustments will apply to the total Accepted area of ea ch 0.1 mile section of HMA, WMA, or PCCP constructed for the Plan typical section travel la ne width and Roadway length. The Department will not include the following areas for paymen t adjustment purposes: 1. BOP and EOP transverse joint (tie-in) of existing pavement ( 100 feet on each side of transverse joint); Section 401: Pavement Smoothness Measurement Page 147 2. Bridge approach and departure tie-in (100 feet before and af ter approach and departure); and 3. Shoulders and turnouts. The Contractor shall follow the requirements of Section 401.3. 2, “Straightedge Measurements (Category III)” for areas one (1) and two (2) list ed above. The Pay Adjustment will be determined utilizing the MRI data obtained after correc tive Work/must grinds in accordance with Section 401.3.5, “Corrective Work/Must Grind Wo rk” has been completed. Re-profiled areas will receive a maximum pay adjustment of 0.00 ($/sy). Pay Adjustment for a 0.1 mile section great er than 0.00($/sy) w ill be utilized to de termine the overall Pay Adjustment for smoothness of the Project. If the overall Pay Adjustment c alculated is greater than 0.00, the Pay Adjustment for smoothness will be 0.00 ($/sy).

401.5.1 1 Pay Adjustment for Category I and Category II HMA/WMA Projects

The Department will base Pay Adju stments on the final MRI for each 0.1 mile section in accordance with Table 401.5.1.1:1, “MRI Based Profile Pay Adjus tment Schedule for Category I HMA/WMA Projects” and Table 401.5.1.1:2, “MRI Based Profile P ay Adjustment Schedule for Category II HMA/WMA Projects,” after the Contractor perform s and measures corrective Work. Re-profiled areas will receive a maximum pay adjustment of 0.00 ($/sy). Table 401.5.1.1:1 MRI Based Profile Pay Adjustment Schedule for Category I HMA/WMA/OGFC Projects Pay Adjustment ($ per square Yard) MRI (Mean Roughness Index) inch/0.1mi Category I <46.1 +0.24 46.1 To 47.0 +0.20 47.1 To 48.0 +0.16 48.1 To 49.0 +0.12 49.1 To 50.0 +0.08 50.1 To 51.0 +0.04 51.1 To 52.0 0.00 52.1 To 53.0 -0.14 53.1 To 54.0 -0.28 54.1 To 55.0 -0.42 55.1 To 56.0 -0.56 56.1 To 57.0 -0.70 57.1 To 58.0 -0.84 58.1 To 59.0 -0.98 59.1 To 60.0 -1.12 >60.0 Corrective Work Required Table 401.5.1.1:1 MRI Based Profile Pay Adjustment Schedule for Category I HMA/WMA/OGFC Projects Pay Adjustment ($ per square Yard) MRI (Mean Roughness Index) inch/0.1mi Category I 60.1 to 61 -1.26 61.1 to 62 -1.40 62.1 to 63 -1.54 63.1 to 64 -1.68 64.1 to 65 -1.82 65.1 to 66 -1.96 66.1 to 67 -2.10 67.1 to 68 -2.24 68.1 to 69 -2.38 69.1 to 70 -2.52 70.1 to 71 -2.66 71.1 to 72 -2.80 72.1 to 73 -2.94 73.1 to 74 -3.08 74.1 to 75 -3.22 75.1 to 76 -3.36 76.1 to 77 -3.50 77.1 to 78 -3.64 78.1 to 79 -3.78 79.1 to 80 -3.92 80.1 to 81 -4.06 81.1 to 82 -4.20 82.1 to 83 -4.34 83.1 to 84 -4.48 84.1 to 85 -4.62 85.1 to 86 -4.76 86.1 to 87 -4.90 87.1 to 88 -5.04 88.1 to 89 -5.18 Table 401.5.1.1:1 MRI Based Profile Pay Adjustment Schedule for Category I HMA/WMA/OGFC Projects Pay Adjustment ($ per square Yard) MRI (Mean Roughness Index) inch/0.1mi Category I 89.1 to 90 -5.32 90.1 to 91 -5.46 91.1 to 92 -5.60 92.1 to 93 -5.74 93.1 to 94 -5.88 94.1 to 95 -6.02 95.1 to 96 -6.16 96.1 to 97 -6.30 97.1 to 98 -6.44 98.1 to 99 -6.58 99.1 to 100 -6.72

100.1 to 101 -6.86

101.1 to 102 -7.00

102.1 to 103 -7.14

103.1 to 104 -7.28

104.1 to 105 -7.42

105.1 to 106 -7.56

106.1 to 107 -7.70

107.1 to 108 -7.84

108.1 to 109 -7.98

109.1 to 110 -8.12

Table 401.5.1.1:2 MRI Based Profile Pay Adjustment Schedule for Category II HMA/WMA/OGFC Projects Pay Adjustment ($ per square Yard) MRI (Mean Roughness Index) inch/0.1mi Category II <56.1 +0.18 56.1 To 57.0 +0.15 57.1 To 58.0 +0.12 Section 401: Pavement Smoothness Measurement Page 150 Table 401.5.1.1:2 MRI Based Profile Pay Adjustment Schedule for Category II HMA/WMA/OGFC Projects Pay Adjustment ($ per square Yard) MRI (Mean Roughness Index) inch/0.1mi Category II 58.1 To 59.0 +0.09 59.1 To 60.0 +0.06 60.1 To 61.0 +0.03 61.1 To 62.0 0.00 62.1 To 63.0 -0.12 63.1 To 64.0 -0.24 64.1 to 65.0 -0.36 65.1 to 66.0 -0.48 66.1 to 67.0 -0.60 67.1 to 68.0 -0.72 68.1 to 69.0 -0.84 69.1 to 70.0 -0.96 70.1 to 71.0 -1.08 71.1 to 72.0 -1.20 72.1 to 73.0 -1.32 73.1 to 74.0 -1.44 >74.0 Corrective Work Required 74.1 to 75 -1.56 75.1 to 76 -1.68 76.1 to 77 -1.80 77.1 to 78 -1.92 78.1 to 79 -2.04 79.1 to 80 -2.16 80.1 to 81 -2.28 81.1 to 82 -2.40 82.1 to 83 -2.52 83.1 to 84 -2.64 84.1 to 85 -2.76 85.1 to 86 -2.88 Section 401: Pavement Smoothness Measurement Page 151 Table 401.5.1.1:2 MRI Based Profile Pay Adjustment Schedule for Category II HMA/WMA/OGFC Projects Pay Adjustment ($ per square Yard) MRI (Mean Roughness Index) inch/0.1mi Category II 86.1 to 87 -3.00 87.1 to 88 -3.12 88.1 to 89 -3.24 89.1 to 90 -3.36 90.1 to 91 -3.48 91.1 to 92 -3.60 92.1 to 93 -3.72 93.1 to 94 -3.84 94.1 to 95 -3.96 95.1 to 96 -4.08 96.1 to 97 -4.20 97.1 to 98 -4.32 98.1 to 99 -4.44 99.1 to 100 -4.56

100.1 to 101 -4.68

101.1 to 102 -4.80

102.1 to 103 -4.92

103.1 to 104 -5.04

104.1 to 105 -5.16

105.1 to 106 -5.28

106.1 to 107 -5.40

107.1 to 108 -5.52

108.1 to 109 -5.64

109.1 to 110 -5.76

110.1 to 111 -5.88

111.1 to 112 -6.00

112.1 to 113 -6.12

113.1 to 114 -6.24

114.1 to 115 -6.36

Section 401: Pavement Smoothness Measurement Page 152 Table 401.5.1.1:2 MRI Based Profile Pay Adjustment Schedule for Category II HMA/WMA/OGFC Projects Pay Adjustment ($ per square Yard) MRI (Mean Roughness Index) inch/0.1mi Category II

115.1 to 116 -6.48

116.1 to 117 -6.60

117.1 to 118 -6.72

118.1 to 119 -6.84

119.1 to 120 -6.96

120.1 to 121 -7.08

121.1 to 122 -7.20

122.1 to 123 -7.32

123.1 to 124 -7.44

401.5.1 2 Pay Adjustment for Category I and Category II PCCP Pa vement Projects

The Department will base Pay Adjustments and credit adjustments on the final average MRI for each 0.1 mile section in accordance with Table 401.5.1. 2:1, “MRI Based Profile Pay Adjustment and Credit Ajustment Schedule for PCCP Projects,” af ter the Contractor performs and measures corrective Work. R e-profiled areas will receive a maximum pay adjustment of 0.00($/sy). Credits will not result in positive payment. Maxi mum positive payment is $0.00. TABLE 401.5.1.2:1 MRI Based Profile Pay Adjustment Schedule for PCCP Projects Category II (Speed < 45 MPH) Category I (Speed ≥ 45 MPH) MRI Adjustment MRI Adjustment <55 Credit Adjustment +$0.56/sq yd <40 Credit Adjustment +$0.56/sq yd 55 to 74 Credit Adjustment ((75-MRI)*0.1125)/4 40 to 59 Credit Adjustment ((60-MRI)*0.1125)/4 75 to 90 0 60-75 0 91 to 110 Pay Adjustment (90-MRI)*0.1125 76 to 90 Pay Adjustment (75-MRI)*0.1125 >110 Corrective Action >90 Corrective Action

401.5.1 3 Pay Adjustment for Category III HMA/WMA/OGFC/PCCP Pro jects

Failure by Contractor to correct any and all validated surface deviations ¼ inch and greater will result in a fifty percent (50%) price reduction to all the HMA, WMA, OGFC, or PCCP for the Project. Section 402: Asphalt Materials and Mineral Admixtures Page 153