WELL MAYBE NOT THIS UNCOMFORTABLE OR THIS UNCOMFORTABLE ROADWAY DISTRESS ON A NARROW ROADWAY MAKES MOTORIST UNCOMFORTABLE

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1 ROADWAY DISTRESS ON A NARROW ROADWAY MAKES MOTORIST UNCOMFORTABLE MAINTENANCE/ CONSTRUCTION CONTRACTS BEST PRACTICES Tomas Trevino, P.E. Maintenance Engineer Corpus Christi District 2 WELL MAYBE NOT THIS UNCOMFORTABLE OR THIS UNCOMFORTABLE 3 4 BUT UNCOMFORTABLE JUST THE SAME 5 6 1

2 7 8 WE KNEW WE HAD TO WORK TOGETHER TO SOLVE THE PROBLEM WITH THE MAGNITUDE OF THE PROBLEMS WE WERE FACING WE KNEW WE HAD TO STRETCH OUR DOLLARS 9 10 CORPUS CHRISTI DISTRICT APPROACH IMPROVE SYSTEM SAFETY(ALLEVIATE DRIVER APPREHENSION, START BY SLOWING TRAFFIC DOWN) WIDEN NARROW FM ROADWAYS TO A MINIMUM OF 28 FT. 1.) UTILIZE QUARTER POINT WIDENING PROJECTS(RMC AND EMC) 2.) COMBINE STATE FORCES AND PERFORM WIDENING PROJECTS 3.) UTILIZE THE ENERGY SECTOR DESIGN BUILD PROJECT TO WIDEN AS MANY LANE MILES AS POSSIBLE. IF FM ROADWAYS WERE ALREADY WIDENED LOOK TO ARMOR AND IMPROVE SAFETY BY ADDING RUMBLE STRIPS IMPROVE SAFETY AT INTERSECTIONS BY ADDING TRAFFIC SIGNALS AND CONSTRUCTING INTERSECTION WIDENING PROJECTS ADDRESS MAJOR CORRIDORS IN THE EAGLE FORD WITH MAJOR REHABS AND AFFORD MOTORISTS PASSING OPPURTUNITIES AND LEFT TURN LANES AT ALL MAJOR INTERSECTIONS THESE ROADS INCLUDE(SH 72, US 181, US 281, AND OTHERS). NUMBER 1 PRIORITY WAS SAFETY! WORST ROADWAY WAS SH 72 (2011)

3 Questions and Comments Discussion of Plan Feedback on Additional Needs 14 WE STARTED WITH THE BASICS: TRAFFIC Questions and Comments Discussion of Plan Feedback on Additional Needs 16 WE SAMPLED THE EXISTING ROADBED AND WE TESTED THE EXISTING ROADBED

4 Questions and Comments Discussion of Plan Feedback on Additional Needs Questions and Comments Discussion of Plan Feedback on Additional Needs Questions and Comments Discussion of Plan Feedback on Additional Needs Questions and Comments Discussion of Plan Feedback on Additional Needs RMC PROJECT SUCCESS RIGHT?

5 NOT SO FAST PARTNER(8 MONTHS LATER) Lots of Trucks Attacking our Pavements 2012 INCREASE IN Location 2010 ADT 2012 ADT PERCENT ADT (%) TRUCKS (%) AFTER BACK-CALCULATING WE FOUND WE HAD 11.5 ESALS. WE HAVE BEEN USING 12 MILLION ESALS ON THIS STRETCH OF SH 72 EVER SINCE BASED ON WHAT WE FOUND April 26 Class Study 24 hour period SB off-ramp ADT=2168 Trucks =984 45% Trucks NB on-ramp ADT= 2176 Trucks =976 45% Trucks ADT=7452 Trucks = % Trucks 2010 ADT=3900 BASED ON THIS NEW INFORMATION WE MODIFIED THE SCOPE OF OUR ON-GOING SH 72 PROJECT IN BEE COUNTY MINIMUM 9 -, MAXIMUM OF , ADT=6399 Trucks = % Trucks 2010 ADT SB on-ramp ADT=1829 Trucks =909 50% Trucks NB off-ramp ADT = 1622 Trucks =641 40% Trucks 28 SH 72 IN BEE COUNTY SH 72 IN LIVE OAK COUNTY (IH 37 TO BEE C.L.)

6 SAFETY IMPROVEMENTS TO MAJOR ROUTES INCLUDE PASSING OPPURTUNITIES(SH 72 FROM McMullen C.L. to US 281) INCREASE USE OF RUMBLE STRIPS RUMBLE STRIPS EFFECTIVE IN 51% OF VEHICULAR ACCIDENTS Karnes County Project Overview 33 Karnes County On-going On going Construction Projects Highway Let Date From To Description of Work Total Est FM 2724 Sep 2012 Cibolo Bridge on FM MI N of FM 81 Replace Bridge & Approaches $1,300,000 US 181 Dec MI S. of US 181 G Karnes/Bee County Line Construct Additional Passing Lanes $3,700,000 SH 72 Aug 2013 Bee County Line US 181 Rehab & Add Passing Lanes $19,800,000 At various locations Various Aug 2013 Intersection Improvements $6,300,000 Total Amount $31,100,000 Map of 2014 Seal Coat & Bridge PM Projects Highway Let Date From To Description of Work Total Est FM 887 Oct RMC Seal Coat $700,000 FM 791 SPUR 190 FY FM 887 Oct 2013 US 181 FM 791 FY 2014 RMC Seal Coat $40,000 FM 1344 Oct 2013 Wilson County Line FM 791 FY 2014 RMC Seal Coat $80,000 FM 2724 Oct 2013 FM 887 FM 81 FY 2014 RMC Seal Coat $250,000 FM 2773 Oct 2013 FM 81 End of Maintenance FY 2014 RMC Seal Coat $70,000 FM 3191 Oct 2013 FM 887 SH 123 FY 2014 RMC Seal Coat $80,000 SH 80 Oct 2013 Wilson County Line Ecleto Creek Bridge FY 2014 RMC Seal Coat $200,000 FM 81 Oct 2013 SH 80 FM 2773 FY 2014 District Wide Seal Coat $380,000 FM 792 Oct 2013 SH 72 SH 80 FY 2014 District Wide Seal Coat $360,000 SH 72 Oct 2013 FM 792 SH 239 FY 2014 District Wide Seal Coat $120,000 SH 80 Oct 2013 US 181 SH 123 FY 2014 District Wide Seal Coat $160,000 US 181 Oct 2013 FM 719 CR 151 FY 2014 District Wide Seal Coat $340,000 FY 2014 Routine Maintenance Projects Total Amount $2,780,000 Highway Let Date From To Description of Work Total Est FM 2724 Feb 2014 Roadway Widening $1,500,000 FM 627 FM 81 SH 123 Feb 2014 SH 80 S. End of Cibolo Creek Brg Mill & Inlay $300,000 Total Amount $1,800,

7 On going Construction Projects Live Oak County Highway Let Date From To Description of Work Total Est US0281 Nov 2013 Tullos St. Milliam St. Overlay $4,925,000 SH0072 Sep 2013 IH 37 Bee C/L Construct $16,895,000 Additional Passing Lanes SH0072 Dec 2012 McMullen US 281 Construct Additional Passing Lanes $8,565,000 C/L Total Amount $30,385,000 FY 2014 Seal Coat & Bridge PM Projects in Live Oak County Highway Let Date From To Description of Work Total Est FM1873 Oct 2013 CR 112 FM 889 FY 2014 RMC Seal Coat $240,000 FM3024 Oct 2013 IH 37 San Patricio C/L FY 2014 RMC Seal Coat $330,000 US0059 Oct 2013 Lagarto Rd McMullen C/L FY 2014 District Wide Seal Coat $800,000 US0059 Oct 2013McMullen C/L Duval C/L FY 2014 District Wide Seal Coat $140,000 FM1545 Oct 2013 FM 72 FM 72 FY 2014 District Wide Seal Coat $220,000 US0281A Mar 2014 AT MERRIMAN HOLLOW FY 2014 Bridge PM $29,000 IH0037 Mar 2014 AT SAND CREEK FY 2014 Bridge PM $29,000 Total Amount $1,788,000 FY 2014 Routine Maintenance Projects in Live Oak County Highway Let Date From To Description of Work Total Est FM0099 Dec 2013McMullen C/L IH 37 West Rehabilitate Roadway $2,652,000 FM0099 Mar 2014 IH 37 Atascosa C/L Overlay Roadway $1,170,000 Total Amount $3,822, ENERGY SECTOR DESIGN BUILD 3000 Location No. Anticipated Start Date District Highway County Physical Limits (From) Physical Limits (To) Approx. Length (mi) Description of Work /18/2014 Corpus Christi FM 882 Bee FM 626 SH Pavement widen/resurface 3 3/18/2014 Corpus Christi US 181 Karnes FM 887 W FM Pavement widen/rehab /16/2014 Corpus Christi FM 627 Karnes FM 2724 FM 81 9 Pavement widen/resurface 11 8/19/2014 Corpus Christi FM 2049 Live Oak IH 37 SH Pavement widen/resurface 14 1/3/2015 Corpus Christi FM 81 Karnes SH 123 SH 80 6 Pavement widen/resurface 1500 Actual EFS 2011 Forecast 15 3/30/2015 Corpus Christi FM 81 Karnes FM 1144 SH Pavement widen/resurface 16 1/19/2015 Corpus Christi FM 1042 Live Oak US 281 FM Pavement rehab /18/2014 Corpus Christi FM 3192 Live Oak FM 2049 FM Pavement rehab 23 3/18/2014 Corpus Christi FM 624 Jim Wells US 281 SH Pavement widen/resurface /18/2014 Corpus Christi SH 119 Karnes SH 80 Dewitt C/L 7 Pavement rehab 0 Year Port Corpus Christi Inner Harb Fifth Largest U.S. Port by Tonnage Approx. 90,000,000 Tons/Year 50 Private and Public Docks 45-Ft Deep Channel Existing 52-Ft Deep Channel Authorized & Permitted 1500 Actual 2011 Revised Forecast EFS 2011 Forecast Year Assumes 25,000 Total Wells Over the Life of the Eagle Ford Play Bass Diffusion Model Parameters p = 0.02, q =

8 TEXAS REFINING CAPACITY Texas[edit] Baytown Refinery (ExxonMobil), Baytown 560,640 bbl/d (89,135 m 3 /d) Big Spring Refinery (Alon USA), Big Spring 61,000 bbl/d (9,700 m 3 /d) Beaumont Refinery (ExxonMobil), Beaumont 348,500 bbl/d (55,410 m 3 /d) Borger Refinery (Phillips 66/Cenovus 50/50 joint venture), Borger 146,000 bbl/d (23,200 m 3 /d) Nelson Complexity Index 12.3 [29] Corpus Christi Complex (Flint Hills Resources), Corpus Christi 288,000 bbl/d (45,800 m 3 /d) Corpus Christi Refinery (Citgo), Corpus Christi 156,000 bbl/d (24,800 m 3 /d) Corpus Christi West Refinery (Valero), Corpus Christi 142,000 bbl/d (22,600 m 3 /d) Corpus Christi East Refinery (Valero), Corpus Christi 115,000 bbl/d (18,300 m 3 /d) Deer Park Refinery (Shell Oil Company), Deer Park 333,700 bbl/d (53,050 m 3 /d) Double Punch Refinery (Barton Refining), Austin 24 bbl/d (3.8 m 3 /d) El Paso Refinery (Western Refining), El Paso 120,000 bbl/d (19,000 m 3 /d) Galveston Bay Refinery (Marathon Petroleum Company), Texas City 451,000 bbl/d (71,700 m 3 /d) Houston Refinery (Lyondell), Houston 270,200 bbl/d (42,960 m 3 /d) Houston Refinery (Valero), Houston 83,000 bbl/d (13,200 m 3 /d) Independent Refinery (Stratnor), Houston 100,000 bbl/d (16,000 m 3 /d) McKee Refinery (Valero), Sunray 158,300 bbl/d (25,170 m 3 /d) Nixon Refinery (Blue Dolphin) Nixon, Texas 15,000 bbl/d (2,400 m 3 /d) Pasadena Refinery (Petrobras), Pasadena 100,000 bbl/d (16,000 m 3 /d) Port Arthur Refinery (Total), Port Arthur 174,000 bbl/d (27,700 m 3 /d) Port Arthur Refinery (Motiva Enterprises), Port Arthur 600,000 bbl/d (95,000 m 3 /d) Port Arthur Refinery (Valero), Port Arthur 325,000 bbl/d (51,700 m 3 /d) Penreco (Calumet Penreco LLC), Houston San Antonio Refinery (NuStar Energy), San Antonio 10,300 bbl/d (1,640 m 3 /d) South Hampton Refinery Arabian American Development, Silsbee, Texas 6,000 bbl/d (950 m 3 /d) Sweeny Refinery (Phillips 66), Sweeny 247,000 bbl/d (39,300 m 3 /d) Nelson Complexity Index 13.2 [29] Texas City Refinery (Marathon Petroleum Company), Texas City 80,000 bbl/d (13,000 m 3 /d) Texas City Refinery (Valero), Texas City 210,000 bbl/d (33,000 m 3 /d) Three Rivers Refinery (Valero), Three Rivers 90,000 bbl/d (14,000 m 3 /d) Tyler Refinery (Delek Refining Ltd.), Tyler 62,000 bbl/d (9,900 m 3 /d) Eagle Ford Shale Activity Cont. Questions and Comments Discussion of Plan Feedback on Additional Needs 43 MEXICO CURRENTLY EXPLORING SHALE DEVELOPMENT 45 8

9 PAVEMENT STRENGTHENING OPERATIONS In-House Forces STRENGTHENING OPERATION ADD BASE IH37 Frontage Road Energy Sector Workshop / CRP District / 2014 Energy Sector Workshop / CRP District / 2014 Typical Existing Frontage Road Completed Surface Gravel Road Energy Sector Workshop / CRP District / Energy Sector Workshop / CRP District / Operation Summary Add Base Operation Summary Add Base Operation: Scarify top 2-3 Add base, Mix Blade, Water, Roll Prime, roll with pneumatic Seal Coat (once drilling complete) Equipment Needs Motor Grader Water Trucks Pneumatic, Pad Foot, and Flat Wheel rollers Reclaimer/Bomag Belly Dumps (2) Distributor Chip Spreader Materials: Flex Base (TY A, Gr 1) SS-1 HFRS-2 PB, Gr 3 Workforce Needs Traffic Control (3) Construction (5) Performance Holds up well, requires emulsion periodically Extent of Use So, far on this portion of frontage road only Energy Sector Workshop / CRP District / Energy Sector Workshop / CRP District /

10 Edge Widening - Typical Completed Section STRENGTHENING OPERATION EDGE WIDENING (FM 1358) Energy Sector Workshop / CRP District / 2014 Energy Sector Workshop / CRP District / Edge Widening Typical Completed Section Operation Summary Edge Widening Operation: 2-3 Widening with RAP Cut edge uniformly, first 2-3 first, then cut to depth (8-12 ) Apply tack to edge Blade in material, roll, leave end of week, clip, roll, fog seal Seal full width Equipment Needs Motor grader (2) Loader Broom Distributor Pneumatic, Pad Foot, and Flat Wheel rollers Belly dumps (2) Chip Spreader Traffic Control Energy Sector Workshop / CRP District / Energy Sector Workshop / CRP District / Operation Summary Edge Widening Materials: RAP HFRS-2 PB, Gr 3 or 4 Workforce Needs Traffic Control (3) Construction (5) Production: 1 mile/day/side Controlling Factor: Hauling distance from stockpile What works: Cutting clean edge 2-3 first. Performance Holding up well after 3 years Extent of Use Moderate use on narrow, energy sector roadways STRENGTHENING OPERATION QUARTER POINT WIDENING (KARNES) Energy Sector Workshop / CRP District / Energy Sector Workshop / CRP District /

11 Typical narrow roadway Quarter Point Widening - Add base Energy Sector Workshop / CRP District / Energy Sector Workshop / CRP District / Quarter Point Widening - Prime & Seal Quarter Point Widening - Cut down/widen Subgrade Energy Sector Workshop / CRP District / Energy Sector Workshop / CRP District / Quarter Point Widening - Completed Section Operation Summary Quarter Point Widening Operation: Cut down 6-7 offset Subgrade Widen OC Add Base, Compact Prime Seal 1 over joint Equipment Needs Motor Grader Water Trucks Pneumatic, Pad Foot, and Flat Wheel rollers Reclaimer/Bomag Belly Dumps (2) Distributor Chip Spreader Energy Sector Workshop / CRP District / Energy Sector Workshop / CRP District /

12 Operation Summary Quarter Point Widening Materials: Flex Base (TY A-Gr 1 or 2) HFRS-2 PB, Gr 3 Workforce Needs Traffic Control (3) Construction (5) Performance Good on widened section Desirable to seal all across Production: 3000 /day/side Controlling Factor: Water, Water, Water! Distance to Stockpile What works: Partnering with Energy Sector to provide water Roadway delivered material STRENGTHENING OPERATION NEW SURFACE (VARIOUS) Extent of Use Moderate use on narrow, energy sector roadways Energy Sector Workshop / CRP District / Energy Sector Workshop / CRP District / 2014 Typical Distress New Surface - Milling Energy Sector Workshop / CRP District / Energy Sector Workshop / CRP District / New Surface - Milling New Surface - Completed Surface (7 outside wheel path) Energy Sector Workshop / CRP District / Energy Sector Workshop / CRP District /

13 New Surface - Finished Surface (12 wide) Operation Summary New Surface Operation: Mill to desired depth (4 ) Broom & Tack Blade in replacement material in lifts Roll Seal & Level Up Equipment Needs Milling Machine Skid Steer Dump Trucks (3) Motorgrader Loader Pneumatic & Flat Wheel rollers Broom Energy Sector Workshop / CRP District / Energy Sector Workshop / CRP District / Operation Summary New Surface Materials: Hot Mix Cold Laid Ty B HFRS-2 TY CC LRA PB, Gr 3 Workforce Needs Traffic Control (3) Construction (9) Production: 1400SY /day What works: Placing HMCL in 2-3 lifts Performance Relative to strength of existing base Good performance when leveled/sealed Extent of Use High on major corridors Energy Sector Workshop / CRP District /

14 SUB TOPICS Edge Repair ROUTINE MAINTENANCE OPERATIONS KARNES CITY AREA OFFICE CORPUS CHRISTI DISTRICT Patching-shallow Patching-deep New Surface Edge Repairs - Func 270 Task P07 Goliad County Method Cut edge approx. 12 deep and 18 wide Clean out/ compact with pneumatic Apply HFRS-2 emulsion tack gals/sy Place TY 1 Grade AA Black Base 500 cy Compact with pneumatic Seal w/ HFRS-2 and PB grade 4s aggregate (time permitting) Equipment & Labor Pneumatic Roller, Maintainer, 2- Belly dumps, Distributor, 8-10 employees Production & Results Up to 10,000 LF/Day Works well when sealed at the end of the week Edge Repairs - Func 270 Task P07 Bee County Method Cut edge approx deep and 24 wide and clean out Apply HFRS-2 emulsion tack coat heavy rate Place TY 1 Gr AA Black Base with drag box and blade 2 Lifts Compact with pneumatic Apply another tack rate of HFRS-2 Equipment & Labor Pneumatic Roller, Maintainer, Loader, Distributor, Drag Box 10yd Dumps 7-10 employees Production & Results LF/Day Depends on amount and type of traffic Edge Repairs - Func 270 Task P07 Edge Damage Karnes County Method Cut edge approx deep and 24 wide and clean out Backfill with RAP, Flex Base or existing ROW material Compact with pneumatic Equipment & Labor Pneumatic Roller, Maintainer, Belly Dumps 4+ employees depending on number of Belly Dumps Production & Results LF/Day Depends on amount and type of traffic 1

15 Edge Repairs Good/Bad Edges Shallow Patching - Func 330 Task P08 (blowouts) Method Karnes County Fill area with TY AA Black Base with 2% cement and compact Double Seal (spot seal) 0.4 gals/sy - PB Grade 3 aggregate 0.35 gals/sy PB Grade 3 aggregate Level Up HFRS-2 Tack gals/sy Blade lay Type CC Cold Mix Equipment & Labor Pneumatic & Flat Wheel Roller, Maintainer, Backhoe, 2- Belly dumps, 10yd dumps, Distributor 6-8 employees Production & Results 2 4 areas per day depending on surface area of patches Results vary depending on traffic Shallow Damage Shallow Patching Shallow Patching 2

16 Shallow Patching - Func 330 Task P08 (blowouts) Method Goliad County (Mill & Fill) Mill up to 4 of pavement sweep loose material out and clean out ends of patch Compact exposed base Tack Coat w/ 0.05 gal/sy Blade Lay HM/CL TY B fine base Compact with vibratory flat wheel (preferred) Equipment & Labor Pneumatic & Flat Wheel Roller, Maintainer, Backhoe, 3-10yd dumps, Distributor, Broom, Skid Steer, Milling Machine 12 employees (9- Goliad, 3-special jobs) Production & Results Approximately 1500 SY/Day using CY of HM/CL Results vary depending on traffic Shallow Damage Shallow Patching Shallow Patching Shallow Patching Deep Patching - Func 330 Task P08 (blowouts) Method - Bee, Goliad, Karnes Dig out 2 3 of unsuitable material Add Cement Place cement at bottom of excavation and fill with Black Base Fill with Black Base/ 2%-3% cement previously mixed at yard Compact (roller, 10yd or distributor) Place HFRS-2 tack 0.2 gal/sy Place TY CC Cold Mix, spread and compact (flat wheel recommended) Equipement & Labor Pneumatic & Flat Wheel Roller, Maintainer, Backhoe, Loader 3-10yd dumps, Belly Dump, Distributor, Up to 16 employees Production & Results 2 4 blowouts per day, depending on size, location and traffic Results vary depending on traffic 3

17 Deep Patching Deep Patching Deep Patching Deep Patching Deep Patching Deep Patching 4

18 Deep Patching New Surface Level Up Func 212 Task P01 Method Sweep/prepare area for level up HFRS-2 Tack 0.05 gal/sy Lay CM/CL TY 1 Gr C material using drag box One 10yd will cover both lanes 2-3 stripes Blade and Roll one lane at a time Roll with Pneumatic and Finish with Flat Wheel Equipment & Labor Pneumatic Roller, Flat Wheel, Maintainer, 3 10yd Dumps, Distributor 8-10 employees Production & Results 8500 SY using 350 CY of material Helps hold previous pavement repairs New Surface Spot Seal Func 232 Task P04 Level Up Method up to 0.45 gal/sy Grade 3 Aggregate Equipment & Labor Pneumatic Roller, 10yd Dumps w/ spreader box, Distributor, Broom 6-8 employees Production & Results Done at the end of the week to cover previous repairs Results vary depending on traffic Safety Motivation Questions????? 29 5

19 Table of Contents 1 Review of Scores Maps Corpus Christi District Laredo District PAVEMENT CONDITION UPDATES Magdy Mikhail, Ph.D., P.E. Director Pavement Preservation Branch 5 6 Yoakum District San Antonio District Footer Text Footer Text 2 Distress Score Equation Distress Score Equation DS 100 n U i i U SRut U DRut 100 U 100 U U Spall FailJnt DS 100 Patch U U U Punch Fail Fail U U n U i i 1 U SSlab Allig ACPatch U U U Lng Blk U PCPatch U PCPatch Lng U Trn Combines All Distress Ratings for Section Footer Text Footer Text Condition Score Equation Condition Score CS DS U Ride Combines Distress and Ride Quality for Section Very Good ( A ) Good ( B ) Fair ( C ) Poor ( D ) Very Poor ( F ) Footer Text Footer Text 1

20 Percent Good or Better FY2013 Percent Good or Better FY2010 Kerr Kerr Kendall Val Verde Kendall Val Verde Austin Fayette Comal Bandera Bexar Bexar Lavaca Yoakum San Antonio Uvalde Kinney Gonzales Medina Uvalde Zavala Jackson Matagorda Atascosa Frio Matagorda Victoria Maverick Goliad Goliad Bee McMullen La Salle LaredoDimmit Calhoun La Salle McMullen Refugio Live Oak Corpus Christi San Patricio Aransas Bee Live Oak Refugio Corpus Christi Calhoun Aransas AransasAransas Jim Wells Jim Wells Webb Aransas Calhoun Aransas San Patricio AransasAransas Nueces Duval Webb Calhoun Calhoun Calhoun Laredo Dimmit Wharton Jackson Karnes Victoria Maverick Lavaca Yoakum Wilson De Witt Karnes Atascosa Frio Gonzales Medina San Antonio Wharton Wilson De Witt Zavala Colorado Guadalupe Colorado Guadalupe Kinney Austin Fayette Comal Bandera Nueces Duval Kleberg Kleberg Kleberg Kleberg Footer Text Footer Text Percent Change FY Corpus Christi District Percent Lane Miles Good or Better Kerr Kendall Val Verde Bexar Uvalde Gonzales Medina Lavaca Yoakum San Antonio Year Karnes Live Oak Refugio Colorado Guadalupe Kinney Austin Fayette Comal Bandera Wharton Wilson De Witt Atascosa Frio Zavala Jackson Karnes Matagorda Victoria Maverick Goliad Laredo Calhoun Calhoun Dimmit La Salle McMullen Bee Live Oak Refugio Aransas Corpus Christi Aransas Jim Wells Webb Duval Calhoun San Patricio AransasAransas Nueces Kleberg Kleberg Footer Text Footer Text 10 Corpus Christi District Corpus Christi District Lane Miles in Very Poor Condition Lane Miles with Failures Year Year Karnes (20 times) Karnes (11 times) Live Oak (9 times) Live Oak (4 times) Refugio Refugio Footer Text 11 Footer Text 12 2

21 Laredo District Laredo District Percent Lane Miles Good or Better Lane Miles in Very Poor Condition Year Year DIMMIT DIMMIT (2 times) LASALLE LASALLE (10 times) ZAVALA ZAVALA (3 times) Footer Text 13 Footer Text 14 Laredo District Yoakum District Lane Miles with Failures Percent Lane Miles Good or Better Year DIMMIT (1.5 times) Year LASALLE (2.8 times) ZAVALA (1.5 times) Gonzales Footer Text 15 Footer Text 16 Yoakum District Lane Miles in Very Poor Condition Yoakum District Lane Miles with Failures Year Year Gonzales (5 times) Gonzales (2.5 times) Footer Text 17 Footer Text 18 3

22 San Antonio District San Antonio District Percent Lane Miles Good or Better Lane Miles in Very Poor Condition Year Year McMullen McMullen Footer Text 19 Footer Text 20 San Antonio District Lane Miles with Failures Year McMullen (1.8 times) Footer Text 21 Footer Text 22 4

23 Data Collection Initiatives Traffic Data Related to Energy Developments Texas Railroad Commission TxDOT Traffic counts WIM data DPS TxDMV Industry interviews 1 2 Energy Layers (Non Renewable) RAILROAD COMMISSION DATA Oil/gas well location data Oil/gas well drilling permit master data Oil/gas production data Underground injection control data Pipeline data 3 4 Completed Wells by Year Completed Wells by Year /

24 Pending RRC Data Issues 11 Oil/gas production Oracle data dump Oil and gas master files Drilling permit master files Underground injection control file 12 2

25 TRAFFIC COUNT DATA ,550 FM 624 (1,550) 1,550 1,

26

27 Growth Rate Year of RHiNO Data Year of Count Data ADT (Absolute Differences) Avg. Truck ADT (Absolute Differences) Min. Max. Avg. Min. Max % 1% 99% 89% 4% 608% % 0% 156% % 0% 144% % 6% 662% % 3% 782% TXDOT WIM DATA Overview of TPP WIM Data Potential Analyses 3 years of data ( ) Some data for WIM or WIM/Piezo stations in Texas Each station: ~1 million records/year Total weight by station Mean of daily 10 highest values Heavy load trends Axle weights by station Conversion of axle weights to single, tandem, and tridem axle weights using axle spacing Conversion to 18kip ESALs 18kip ESAL analysis and distribution charts

28 Overweight Load Trends Year No. Trucks No. Trucks Over 80 kip % 2011: 86,100 trucks (80 84 kips) 2012: 41,680 trucks (80 84 kips) M 100, % M 115, % M 50, % Overweight Load Trends Year No. Trucks No. Trucks Over 80 kip % ,569 20, % ,323 26, % ,506 28, % : 20,150 trucks (80 84 kips) 2012: 21,518 trucks (80 84 kips)

29 Overweight Load Trends Year No. Trucks No. Trucks Over 80 kip % 2010: 5,583 trucks (80 84 kips) 2012: 10,987 trucks (80 84 kips) ,643 12, % ,023 17, % DPS INSPECTION DATA DPS Commercial Vehicle Inspection Data Inspection data: 01/ /2013 Data files: Inspection event data (e.g., location and time) Violation description Vehicle data (e.g., axle configuration) Weight data (e.g., gross and axle group weight) Hazmat data DPS Commercial Vehicle Inspection Data Inspections are not random Truck volume data not collected Only a portion can be mapped: About 40% with Lat Long coordinates Another 25% with route name and milepost Interstate highways: Milepost data match Other highways: Milepost data do not match

30 Gross Weight Overweight Amount Axle 1 Axle Group 2 Axle Group 3 Axle Group X OO OOOOO X OO OO O X OO OOOO X OO OO X OO OOO X OO OOO X OO OO X OO OO X OO OO X OO OO Total Inspections 926 Inspections with Weight Violations Weight Violations in Eagle Ford Region County Total Inspections Weight Violations Percent Live Oak 1, % McMullen % Goliad % Bee % La Salle % Dimmit 1, % Zavala % Webb 4, % Karnes % Jim Wells % Duval % Frio 1, % Gonzales 1, % Maverick 2, % Atascosa 1, % Fayette % De Witt Energy Developments 671 and the 13 2% 44 Wilson % Inspections with Weight Violations Inspections with Weight Violations Permit Types TXDMV OS/OW PERMIT DATA Annual Permits Single Trip Permits Description Crane Well Servicing Unit Rig Up Truck / Unladen Lift Fracking Trailer Ready Mixed Concrete Truck General Super Heavy 30 day/60 day/90 day Width/Length Over Axle (1547) Crane (S/P Mileage) Well Servicing Unit (S/P mileage)

31 OS/OW Permits Aug 2011 Jan 2014 Permit Type No. of Permits Percentage Annual Permits 138,843 8% Single Trip Permits 1,494,727 80% Other Permits 230,666 12% Total 1,864, % OS/OW Permits FY 2013 Industry Type No. of Permits All Industry Types 519,206 Oil and Gas Industry Related 224,500 % Permits Related to Oil & Gas Industry 43% Oil & Gas Industry Permits No. Permits No. Trips Annual permits 16,720 4,180,031 Single trip permits 180, ,002 Other permits 27,778 27,778 Total 224,500 4,387, Pending OS/OW Data Issues Thank You! Annual permit data did not contain effective or expiration dates Information on number of axles is missing Some TxPROS routes have O D pairs connected by straight lines

32 Vehicle Class Vehicle Count Total Weight (lbs) 4 2,143 44,388, , ,096, , ,357, , , ,524, ,856 9,487,726, , ,412,349 Total 207,241 10,198,025,

33 61 62 Inspections with Weight Violations Annual Permit Single Trip Permit

34 Major OS/OW O D Pairs in Texas (FY09) Total Number of OS/OW Permits Total Number of OS Permits Total Weight of OW Loads Relative Pavement Impact Total Weight Weight Weight EALF Ratio (lb) Ratio Ratio EALF Ratio Weight Ratio EALF Ratio WRT 4,000 lb WRT 35,000 lb WRT 80,000 lb 4, , , , , , , , , , ,

35 Pavement Evaluation Tools and Thickness Design Methods Evaluation Tools Current Projects Lessons Learned Pavement Design Tools Current Future Opportunities/Challenges Pavement Evaluation Tools GPR FWD DCP 87 NB Dewitt TTI s Field Sampling and Testing Bottom of HMA surface 1

36 IAC Repair of Oil/Gas Road Damage Year 1 of 3 Task 4 Provide Support for Maintenance Division on Specific Projects Yoakum (SH 97 US 87) Corpus Christi (SH 72) Odessa (SH is what we are doing working???) Collect and Interpret NDT data + Coring logs Present District; thickness, strength, variability and info on defects get District input on rehab options include issues of constructability, traffic handling, funding, previous successes and failures Provide lab testing support if needed Collected in Field Testing Current Condition Strength with Depth Strength Uniformity along section Layer thicknesses and type Roadway width Presence of Defects Rehab Options Construction Restrictions Localized patching Mill and Structural Overlay Base Thickening + CST/HMA Shallow FDR 4 to 6 ins (asphalt) FDR ( Stabilizer 8 16 ins) FDR (create a foundation Layer) SH 72 Truck Route SH 72 Failure of thin areas Odessa District Request Importance of a Foundation Layer IH 10 Odessa District TRM 305 to 326 2CST 12 Inches Flexible base Rock Subgrade 35 years old FM 133 Laredo District TRM 440 to CST 10 inches Flexible base Sandy/Gravel Subgrade 14 years old Nothing to 4% Cement or 8% lime Geogrids to minimize edge cracking Thin HMA crack resistant FPS Designed HMA High volume 2

37 Importance of Foundation layer Results from SH 97 and FM 133 High PI clay soils at east of SH 97 IH 35 Cotulla 2 SH 97 1 Section 1 3 FM FWD Subgrade modulus 18 KSI sand 7 ksi clay Well stabilized 8 inches thick, clay soil US 97 Laredo 4 Year Old FDR Cement treated Stiffer base and weak clay subgrade TxDOT s FPS 21 program Texas Triaxial Check Mechanistic Empirical (stress/strain) check weak 3

38 Thickness designs On line Soil mapping Soil Type Soil PI Sulfate levels Subgrade Strain Criteria ME Design Check 4

39 FPS 23 Design Systems to be evaluated Opportunities Document what is working and what is not Need best design practices guidelines What are other states/countries doing North Dakota Canada Consider building Test Sections New Stabilizer Types Asphalt Emulsion Foamed Asphalt New technologies for establishing Foundation layers Geocells North Dakota DOT 18 Inch deep one pass Asphalt stabilization Opportunities Document what is working and what is not Need best design practices guidelines What are other states/countries doing North Dakota Canada Consider building Test Sections New Stabilizer Types Asphalt Emulsion Foamed Asphalt New technologies for establishing Foundation layers Geocells Challenges Flood Zone restrictions Early Traffic Requirements Conclusions TTI available to support Districts thru IAC NDT and Pavement Design tools (TTC) are available to engineer these projects Overloads means that designs that have worked in the past may need to be rethought If you do not have a good foundation layer build one 5

40 SH 85 Thin HMA over Flexible base Field Sampling and Testing SH 85 Design Challenge Weak thin structure Existing base Materials marginal Flood plain restrictions cannot increase height Need to open to traffic at night Evaluation of FDR options Three sections proposed/ Project let Cement Asphalt Emulsion Foamed Asphalt 1 SH 97 4 year old FDR project East End of project TRM TRM Limits Subgrade E (ksi) to to to Section 1 6

41 Less stiff base more sandy soil Conclusions from Section 1 of SH 97 TRM 456 to inches HMA + 8 inches CTB + 6 inch Flex base + Clay East end of project on clay soils TRM 456 to End East End CTB stiff looks like classic CTB fatigue cracking failure Marginal support from clay soils Very Heavy trucks Maintenance Full depth HMA patches Try short section of FDR to replace CTB with asphalt stabilized base Full repair will need to treat or bridge over weak subgrade Mill/Remove and stockpile top 12 inches Cement treat existing subbase Place 10 inches of Grade 1 flexible base Thin flexible surface layer 2. Better section of SH 97 Airport Road to TRM 456 x x SH 97 EB TRM 452 C 1 SH 97 EB TRM 452 C 2 Conclusions for West End of SH 97 Soils definitely more sandy at west end of project Base does not seem as stiff; broke up during coring In general this section doing a lot better Could get more life out of this with an asphalt overlay FM Years old Narrow pavement Great Condition TRM 440 Excellent Subgrade and shoulder strength Brutal Loads on FM CST 10 Inches Flexible Base 440 OWP 440 shoulder 7

42 Rocky Gravel base over very good sandy/rocky subgrade FM 133 from TRM 440 to IH 35 Good Performing section Very good subgrade support (sandy/rocky material) For rehab and widening Match section Widen with 10 inches of Grade 1 flexible base Under seal Overlay entire section flexible HMA overlay Do not use stiff mix here Edge Testing and sampling FWD fractured CTB Localized same modulus as flexible base Depth (ins) CBR Section 4. FM133 La Salle TRM 440 to IH year old good condition 2 CST 10 Inches Flexible Base Sandy/good subgrade 8