DOCSLIB.ORG

Development of Use-Based Chlorophyll Criteria for Recreational Uses of Reservoirs

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Development of Use-Based Chlorophyll Criteria for Recreational Uses of Reservoirs WEFTEC®.06 DEVELOPMENT OF USE-BASED CHLOROPHYLL CRITERIA FOR RECREATIONAL USES OF RESERVOIRS Peggy W. Glass, Ph.D. Alan Plummer Associates, Inc. 6300 La Calma, Suite 400 Austin, TX 78752 ABSTRACT This investigation was sponsored by the Texas Water Conservation Association (TWCA) with support from the Association of Metropolitan Sewerage Agencies (AMSA) and the Texas Association of Metropolitan Sewerage Agencies (TAMSA). The study was conducted by seven Texas river authorities in association with Dr. William W. Walker, Jr., Ph.D., and Alan Plummer Associates, Inc. (APAI). Its purpose is to provide data to assist in the development of surface water quality standards for nutrients in reservoirs. This investigation focuses on the identification of use-based criteria to support recreational uses. These results can be compared to criteria to support other types of uses of reservoirs (water supply, aquatic life use, fisheries, etc.) to derive appropriate water quality standards for nutrients. The study method was to collect simultaneous data on user perception of whether recreational use was impaired (and, if so, the extent of the impairment) and water quality data. The water quality parameters measured included water clarity, nutrient concentrations, chlorophyll concentrations, dissolved oxygen, and pH. Data were collected twice each month during the summer in eight reservoirs. Two stations were sampled in each reservoir: one station was in the main body of the lake, and one station was in either a cove or a headwaters area. The study was conducted over two summers. The eight reservoirs studied represent a wide range of sizes, ecoregions, nutrient loadings, and natural (inorganic) turbidity levels. Over the two-year period, approximately 310 sampling events were conducted, and over 1,800 survey forms were completed. Approximately 96% of the survey records could be paired with chlorophyll measurements. Chlorophyll was concluded to be the most appropriate parameter for a water quality standard. KEY WORDS Nutrients, Nutrient Criteria, Recreational Uses, Chlorophyll Criteria, Reservoirs. Copyright © 2006 Water Environment Foundation. All Rights Reserved 4038 WEFTEC®.06 INTRODUCTION This study is a collaborative effort to identify the level at which algal growth is objectionable to recreational users of reservoirs in Texas. A representative range of Texas reservoirs was selected for the two-year study. Sampling was conducted during the summers of 2003 and 2004. Participants in the study were as follows: Brazos River Authority (BRA), Guadalupe-Blanco River Authority (GBRA), Lower Colorado River Authority (LCRA), Sabine River Authority (SRA), San Antonio River Authority (SARA), Tarrant Regional Water District (TRWD), and Trinity River Authority (TRA). Consultants assisting in the effort were Dr. William W. Walker, Jr., and Alan Plummer Associates, Inc. (APAI). The study was sponsored by the Texas Water Conservation Association. Support was also provided by the Association of Metropolitan Sewerage Agencies (AMSA) and members of the Texas Association of Metropolitan Sewerage Agencies (TAMSA). Several researchers have conducted similar studies to identify the level at which algal growth is objectionable to recreational users of reservoirs (for example, Heiskary & Walker, 1988; Smeltzer & Heiskary, 1990). These researchers, and this study, used a method that coordinates user surveys and water quality measurements. Previous researchers determined that algal bloom frequency is the most significant nutrient-related condition for recreational users. However, they have also found that bloom frequency can be correlated to a growing season mean chlorophyll-a concentration, which is a more practical parameter for a regulatory criterion. For the purpose of this study, recreational uses include the full-range of contact and non-contact activities and the aesthetic qualities supportive of these uses. DESCRIPTION OF STUDY RESERVOIRS Eight reservoirs were selected for the study. These reservoirs represent a wide range of conditions with respect to size, drainage area, trophic status, primary uses, and ecoregion location. The eight reservoirs are Lake Bridgeport, Canyon Lake, Cedar Creek Reservoir, Lake Fork Reservoir, Lake Georgetown, Granger Lake, Lake Livingston, and Lake Travis. Table 1 provides a summary of the sizes of the reservoirs and the ecoregion in which each reservoir is located. Copyright © 2006 Water Environment Foundation. All Rights Reserved 4039 WEFTEC®.06 Table 1 –Description of Study Reservoirs Surface Area Volume Reservoir Level III Ecoregion (acres) (acre-feet) Canyon Lake Edwards Plateau 8,230 378,781 East Central Texas Cedar Creek Reservoir Plains/Texas Blackland 32,623 637,180 Prairies Texas Blackland Granger Lake 4,009 54,280 Prairies/Edwards Plateau Central Oklahoma/Texas Lake Bridgeport 11,649 366,236 Plains South Central Lake Fork Reservoir Plains/Texas Blackland 27,690 604,927 Prairies Lake Georgetown Edwards Plateau 1,297 37,010 South Central Lake Livingston Plains/Texas Blackland 83,277 1,741,867 Prairies Lake Travis Edwards Plateau 18,622 1,131,650 DESCRIPTION OF RECREATIONAL USER SURVEYS Persons surveyed were asked to identify which of the following responses best described their perception of how suitable the lake water was for recreation and aesthetic enjoyment on the day the survey was conducted. 1) Beautiful, could not be any nicer 2) Very minor aesthetic problems; excellent for swimming, boating enjoyment 3) Swimming and aesthetic enjoyment slightly impaired 4) Desire to swim and level of enjoyment of the lake substantially reduced 5) Swimming and aesthetic enjoyment of the lake nearly impossible Additional questions were included in the survey to determine the users’ perception of how much algae was in the water, the nature of the recreational use (swimming, fishing, picnicing, etc.) and whether factors other than algae (muddiness, boat traffic, etc.) were causing the impairment of recreational use. Also, data were obtained regarding whether the survey respondent was a frequent or infrequent visitor. During each sampling event, at each sampling location, two Copyright © 2006 Water Environment Foundation. All Rights Reserved 4040 WEFTEC®.06 survey forms were completed by the technical staff collecting the water quality samples; and, when possible, five survey forms were completed by recreational users of the lake. DESCRIPTION OF SAMPLING PROGRAM Sampling events were conducted twice each month during the summers of 2003 and 2004. Two stations were sampled/surveyed in each reservoir. One station was always in the main body of the reservoir. The other station was always in a cove or headwaters area. Whenever possible, sampling events were conducted a minimum of two weeks apart. An effort was made to avoid conducting sampling events during, or immediately after, significant rainfall events. (During data evaluation, a few of the measurements were determined to have been influenced by rainfall; these results were not included in subsequent evaluations.) Table 2 identifies the water quality parameters that were measured. All chlorophyll analyses were performed by the LCRA Environmental Laboratory Services to provide data consistency. Table 2 – Water Quality Parameters Measured Field Measurements Laboratory Measurements Conductivity Algae Dissolved Oxygen (DO) Chlorophyll-a pH Pheophytin Secchi Disc Depth Nitrogen Temperature Nitrate Nitrite Total Kjeldahl Nitrogen Phosphorus Total Phosphorus Solids Total Suspended Solids (TSS) Volatile Suspended Solids (VSS) Turbidity RESULTS Following are summaries of the study results. Quality characteristics of the reservoirs are summarized, and the results of the user surveys are presented. Copyright © 2006 Water Environment Foundation. All Rights Reserved 4041 WEFTEC®.06 Reservoir Water Quality Figure 1 presents a summary of the transparency characteristics of each reservoir, as indicated by Secchi disc measurements. The values presented are the mean summer transparency measurements in the main body of each reservoir. Figure 1 – Average Summer Transparency – Reservoir Main Body Stations 3.5 3 2.5 2 1.5 1 0.5 Transparency (meters) 0 t er n k to or or on vis F a rang ngs e etown Tr i g Cany G iv ridgep L B Lak Cedar Creek Geor The reservoirs are grouped on the figure based on transparency. Lake Granger has the lowest transparency. Lake Granger is different than the other reservoirs in the study in that the low transparency is the result of high TSS in the water column, which is predominantly inorganic. In the other reservoirs, increases in TSS are typically associated with increased VSS (as previously noted, samples where TSS may have been influenced by rainfall runoff have been eliminated from these evaluations). Figure 2 presents a summary of chlorophyll concentrations in each reservoir. The reservoirs are again grouped based on transparency, as shown on Figure 1. The values presented are the mean summer concentrations in the main body and the cove or headwaters of each reservoir. Table 3 summarizes the range of chlorophyll measurements in each reservoir. Both main body and cove/headwaters data are included in Table 3. Copyright © 2006 Water Environment Foundation. All Rights Reserved 4042 WEFTEC®.06 Figure 2 – Chlorophyll Concentrations – Reservoir Main Body and Cove/Headwaters Stations 50 Main Body 40 Cove / Headwater 30 20 10 Chlorophyll-a (ug/l) 0 t is or ton p nger gs ra Creek e Fork Trav r k Canyon G ridge Livin B La Ceda Georgetown Table 3 – Range of Chlorophyll Concentrations
Load more

Recommended publications
  • Lakefront Property for Sale Lake Tawakoni Texas
    Lakefront Property For Sale Lake Tawakoni Texas illiberally.Undue Ashish Irresolute depletes or salable, adventurously. Silvio never Rouged overindulging Winnie transpire any spiculas! deucedly and involuntarily, she plebeianising her fibre achromatised Looking at North East Texas real estate waterfront property lake homes or lake. You can also enjoy your boat lanes, and boat slips and provides rural paradise awaits you for sale in these five things to avoid the! With Waterfront Homes for Sale of West Tawakoni TX. This home to the texas lakefront for lake property in cherokee, not guaranteed and land for sale in lake. Beautiful area close any lake. Featuring condominium rentals and sales Commonwealth Yacht Club Docker's. Custom waterfront properties sale on the lakefront cottage has no homes and in rains county. We offer expansive water and should be amazed at one percent of texas lake tawakoni, heavily wooded property in greenville and. Central Texas waterfront land you live water ranches offer some of advantage most desirable hill the real estate in Texas. Max hoa yantis, texas lakefront for property sale to shopping and ana white cabinetry, boat to avoid major search? From shopping and open spaces are completely updated property for sale in. Lake Ontario in Cobourg. This gives families many options for public schooling in the Rains, are trademarks of Redfin Corporation, a sandy beach and a bulkhead for protection. Lake Vacation Getaway Waterfront relaxing getaway close to brew city. Queen beds in bedrooms. Realtors and lakefront property for sale lake tawakoni texas, and view other than life! Great location in and growing East Tawakoni area.
    [Show full text]
  • Consumer Plannlng Section Comprehensive Plannlng Branch
    Consumer Plannlng Section Comprehensive Plannlng Branch, Parks Division Texas Parks and Wildlife Department Austin, Texas Texans Outdoors: An Analysis of 1985 Participation in Outdoor Recreation Activities By Kathryn N. Nichols and Andrew P. Goldbloom Under the Direction of James A. Deloney November, 1989 Comprehensive Planning Branch, Parks Division Texas Parks and Wildlife Department 4200 Smith School Road, Austin, Texas 78744 (512) 389-4900 ACKNOWLEDGMENTS Conducting a mail survey requires accuracy and timeliness in every single task. Each individualized survey had to be accounted for, both going out and coming back. Each mailing had to meet a strict deadline. The authors are indebted to all the people who worked on this project. The staff of the Comprehensive Planning Branch, Parks Division, deserve special thanks. This dedicated crew signed letters, mailed, remailed, coded, and entered the data of a twenty-page questionnaire that was sent to over twenty-five thousand Texans with over twelve thousand returned completed. Many other Parks Division staff outside the branch volunteered to assist with stuffing and labeling thousands of envelopes as deadlines drew near. We thank the staff of the Information Services Section for their cooperation in providing individualized letters and labels for survey mailings. We also appreciate the dedication of the staff in the mailroom for processing up­ wards of seventy-five thousand pieces of mail. Lastly, we thank the staff in the print shop for their courteous assistance in reproducing the various documents. Although the above are gratefully acknowledged, they are absolved from any responsibility for any errors or omissions that may have occurred. ii TEXANS OUTDOORS: AN ANALYSIS OF 1985 PARTICIPATION IN OUTDOOR RECREATION ACTIVITIES TABLE OF CONTENTS Introduction ...........................................................................................................
    [Show full text]
  • Pesca Austin
    APOYe eL DePORTe ¡cOMPRe SU LIceNcIA De PeScA! PESCA EN EL ÁREA DE AUSTIN Su compra de licencia apoya la educación para todos los pescadores y apoya la salud de los PeScA 2338 peces y sus hábitats. 1 Granger Lake 4 Lake 29 Georgetown Para pescar legalmente en aguas públicas, todos 29 los pescadores de 17 años y mayores necesitan Lake Georgetown comprar su licencia de pesca. Travis Leander 11 10 Taylor 79 AUSTIN 6 45 ¿cÓMO PUeDO PROTeGeR A LOS PeceS Y Round Dam 620 183 SUS HABITATS? Rock 95 3d • Use anzuelos sin púas o anzuelos circulares. 14 130 • Capture el pez rápidamente. Lake 2222 35 973 Austin 360 • Toque el pez con las manos mojadas. 620 3c • Recoja su basura y recicle su línea de pesca. 3b • Regale su carnada viva no usada a otro pesca- 3a dor, o póngala en la basura. No la tire en el agua. Bee 2244 Manor 290 AC Expressway Cave Dam 2c MOP 3177 State Elgin Capitol 973 VeR LAS ReGLAS De . 71 360 Barton SpringsLady Bird PeScA eN TeXAS Rd. Lake Walter E. Long 1 183 Reservoir 2b 2a Airport Blvd 5 15 tpwd.texas.gov/espanol/pub Paige Lamar Riverside [ES] 969 290 95 290 ve. Dam txoutdoorannual.com 71 A 13d 973 21 [EN] Oak Hill Congress 71 13a Colorado River 13b 1441 Austin Lake Bastrop APLIcAcIÓN MÓVIL [eN] 18 12 7 35 outdoorannual.com/app 71 183 8 Buda 16 130 13c Park Road 1 9 153 45 Kyle Bastrop Smithville ¿cÓMO PUeDO cOMPRAR 17 MI LIceNcIA De PeScA? tpwd.texas.gov/espanol/pescar/licencia [ES] tpwd.texas.gov/licenses [EN] 1.
    [Show full text]
  • May 2018 Monthly Water Quality Report
    SABINE RIVER AUTHORITY OF TEXAS TO: INTERESTED PARTIES FROM: ENVIRONMENTAL SERVICES DIVISION RE: MAY 2018 MONTHLY WATER QUALITY REPORT The Environmental Services Field Offices conducted water quality monitoring in the Sabine Basin from May 7th through the 10th. The results of field monitoring are presented in this report and additional results can be found using the Texas Commission on Environmental Quality (TCEQ) Clean Rivers Program Data Tool: https://www80.tceq.texas.gov/SwqmisWeb/public/crpweb.faces Sabine Basin Tidal (Including Tributaries) Weather – Air temperatures in the tidal basin were warm with highs in the 80s. Low temperatures ranged in the upper 50s to low 70s. The tidal stations received 0.12 inches of rainfall in the seven days prior to the sampling event. Tidal Conditions – Surface salinity values were not greater than 2 ppt at any of the six tidal stations. The highest salinity value of 0.8 ppt was recorded at station 10391 (SRT1) at a depth of 9.0 meters. Lower Sabine Basin (Toledo Bend Reservoir and the Sabine River downstream to Tidal) Weather – Air temperatures in the lower basin were warm with highs in the 80s. Low temperatures ranged in the upper 50s to upper 60s. Toledo Bend received 0.55 inches of rainfall during the seven days prior to the sampling event. Lake Level - The level of Toledo Bend was 170.7 feet with a daily average discharge of 4,251 cfs on the day of sampling. Toledo Bend has a conservation pool level of 172 feet msl. Reservoir profiles indicated water column is stratified. Upper Sabine Basin (Lake Tawakoni, Lake Fork Reservoir, and the Sabine River upstream of Toledo Bend) Weather - Air temperatures in the upper basin were warm with highs in the low 70s to upper 80s.
    [Show full text]
  • Volumetric and Sedimentation Survey of GRANGER LAKE March 2013 Survey
    Volumetric and Sedimentation Survey of GRANGER LAKE March 2013 Survey July 2014 Texas Water Development Board Carlos Rubinstein, Chairman | Bech Bruun, Member | Kathleen Jackson, Member Kevin Patteson, Executive Administrator Prepared for: Brazos River Authority With Support Provided by: U.S. Army Corps of Engineers, Fort Worth District Authorization for use or reproduction ofany originalmaterial containedin thispublication, i.e. not obtainedfrom othersources, isfreely granted. The Board would appreciate acknowledgement. This report was prepared by staffofthe Surface Water Resources Division: Ruben S. Solis, Ph.D., P.E. Jason J. Kemp, Team Lead Tony Connell Holly Holmquist Nathan Brock Michael Vielleux, P.E. Khan Iqbal Bianca D. Whitaker 73094 VJftS TOM0P li Published and distributed by the Texas Water Development Board P.O. Box 1323 1, Austin, TX 78711 -323 1 Executive summary In October 2011, the Texas Water Development Board (TWDB) entered into agreement with the U.S. Army Corps of Engineers, Fort Worth District, and in November 2011, entered into agreement with the Brazos River Authority, to perform a volumetric and sedimentation survey of Granger Lake. The Brazos River Authority provided 50% of the funding for this survey, while the U.S. Army Corps of Engineers, Fort Worth District, provided the remaining 50% of the funding through their Texas Water Allocation Assessment Program. Surveying was performed using a multi- frequency (208 kHz, 50 kHz, and 24 kHz), sub-bottom profiling depth sounder. In addition, sediment core samples were collected in select locations and correlated with the multi-frequency depth sounder signal returns to estimate sediment accumulation thicknesses and sedimentation rates. Granger Dam and Granger Lake, formerly known as Laneport Dam and Laneport Lake, are located on the San Gabriel River in the Brazos River Basin, seven miles east of the City of Granger in Williamson County, Texas, and approximately 10 miles northeast of Taylor, Texas.
    [Show full text]
  • NAB-TOS Seasonal Report Species
    Fall 2008: Central Oaks & Prairies and East Texas Pineywoods By Bert Frenz This report is reduced from 3569 sightings of 302 species from 1 August to 30 November 2008. WEATHER REPORTS: David Wolf, 14 September, Angelina-Nacogdoches-San Augustine counties, "This was the day after Hurricane Ike smashed northward and then northeastward through East Texas. I checked two sites on this date: (1) Lake Nacogdoches (about 15 miles west of Nacogdoches town in Nacogdoches County) for one hour in the late morning. The storm center passed not too far west of this small reservoir, putting it square in the "dirty" side of the storm; and (2) TX 147 causeway across middle Lake Rayburn (San Augustine County) for 1½ hours in the early afternoon. This huge reservoir is some distance east of the storm track and strongest winds, but still on the "dirty" side of it." MOST UNUSUAL SIGHTINGS: Latest ever for this East Texas area, a Black-bellied Whistling-Duck flew over Angelina 16 Oct (Robert Truss). A Long-tailed Duck was at Lake O’ the Pines in Upshur 22 Nov (David Brotherton). A first breeding record – and only the second sight record – for Fayette was a pair of Least Grebes observed incubating 11 Aug (Darrell Vollert, Willie Vollert) on a pond near Round Top. Extensive photographs were taken 16 Aug (Marsha Seyffert). Hurricanes brought an unprecedented number of Brown Pelicans far inland and many remained for months. Prior to this fall less than 10 records exist for the entire Pineywoods, so this season set new county records in East Texas and the counts in the Central Brazos Valley set new heights.
    [Show full text]
  • Little Sandy National Wildlife Refuge Draft Comprehensive Conservation Plan and Environmental Assessment
    U.S. Fish & Wildlife Service Little Sandy National Wildlife Refuge Draft Comprehensive Conservation Plan and Environmental Assessment January 2017 Vision Statement Vision Statement Little Sandy National Wildlife Refuge (NWR or Refuge) will preserve, restore, and enhance the ecological integrity of the Oak Woods and Prairies and Piney Woods bottomland forests, oxbow lakes, and shrub swamps within the Upper West Gulf Coastal Plain ecoregion of east Texas. The Refuge will also serve as a resilient source of evolving habitats and ecosystem processes, even as structure and composition are altered due to climate change. The Refuge will continue to provide quality habitats for a variety of native plants and wildlife; with emphasis on migratory birds and threatened and endangered species, for the benefit of present and future generations. American Alligator by David Weaver Little Sandy NWR Draft Comprehensive Conservation Plan and Environmental Assessment v-1 Table of Contents Table of Contents Table of Contents ......................................................................................................................................... i Vision Statement ...................................................................................................................................... v-1 1.0 INTRODUCTION............................................................................................................................ 1-1 1.1 Purpose and Need for the CCP ................................................................................................
    [Show full text]
  • SRA FY 2018 Annual Report
    SABINE RIVER AUTHORITY OF TEXAS Comprehensive Annual Financial Report for Fiscal Years Ended August 31, 2018 and 2017 INTRODUCTION SECTION Letter to the Board of Directors ..........................2 Supplementary Information Board of Directors ..............................................4 Amortization of TWDB Loan ......................70 Board Officers ....................................................6 Insurance in Force ......................................71 Board Highlights..................................................7 Executive Staff ....................................................8 STATISTICAL SECTION Management Staff ..............................................9 Exhibit 1 ............................................................72 GFOA Certificate of Achievement ....................10 Exhibit 2 ............................................................72 Authority General Office Exhibit 3 ............................................................73 Managing East Texas Water ..........................12 Exhibit 4 ............................................................73 Sabine River Basin Planning Issues..............13 Exhibit 5 ............................................................74 Cover Feature: Hurricane Harvey..................14 Exhibit 6 ............................................................74 Administrative Office and Accounting ..........16 Exhibit 7 ............................................................75 Water Resources Branch: Exhibit 8 ......................................................76-77
    [Show full text]
  • Granger Lake Sedimentation and Watershed Conservation
    GRANGER LAKE SEDIMENTATION AND WATERSHED CONSERVATION IMPLEMENTATION ASSESSMENT A Thesis by JASON ROSS MCALISTER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 2011 Major Subject: Rangeland Ecology and Management i Granger Lake Sedimentation and Watershed Conservation Implementation Assessment Copyright 2011 Jason Ross McAlister ii GRANGER LAKE SEDIMENTATION AND WATERSHED CONSERVATION IMPLEMENTATION ASSESSMENT A Thesis by JASON ROSS MCALISTER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, Bradford Wilcox Committee Members, William Fox, III Raghavan Srinivasan Head of Department, Steven Whisenant December 2011 Major Subject: Rangeland Ecology and Management iii iii ABSTRACT Granger Lake Sedimentation and Watershed Conservation Implementation Assessment. (December 2011) Jason Ross McAlister, B.S., Texas State University Chair of Advisory Committee: Dr. Bradford Wilcox Sedimentation rates for many Texas reservoirs may be skewed by overstated estimates of design capacity and assumptions perpetuated through subsequent volumetric surveys. Multi-frequency reservoir surveys offer the means by which we may improve existing reservoir data and validate historic sedimentation rate estimates. To demonstrate application of this technology and value of its data derivatives, a multi-year, multi-frequency acoustic survey of Granger Lake, located in Williamson County, Texas was undertaken. Objectives of the study were to use hydro-acoustic survey techniques to verify assumptions of original reservoir capacity, examine the general accuracy of previously derived sedimentation rate, and document conservation implementation effectiveness.
    [Show full text]
  • Karnes County
    PROJECT FUNDING REQUEST BOARD DATE: December 17, 2020 PRESENTED BY: Reem Zoun ACTION REQUESTED Consider approving selected applications and authorizing the Executive Administrator to negotiate and execute contracts for grant funding in an amount not to exceed $44,693,945 from the Flood Infrastructure Fund for watershed flood protection planning studies (Category 1) and authorizing the transfer of $44,693,945 from the Flood Infrastructure Fund to the Research and Planning Fund, as authorized by Texas Water Code Section 15.534(a)(8). STAFF RECOMMENDATION Approve No Action BACKGROUND Passed by the 86th Texas Legislature and approved by voters through a constitutional amendment, the Flood Infrastructure Fund (FIF) was created to provide funding for flood mitigation projects. The purpose of the FIF, as outlined in Senate Bill 7 is to assist in financing drainage, flood mitigation, and flood control projects. FIF projects and studies presented for consideration have been scored and ranked using prioritization criteria outlined in 31 Texas Administrative Code § 363.404 and further specified in the Flood Intended Use Plan. The prioritized list of projects and studies was approved by the Board on September 17, 2020. KEY ISSUES The selected studies represent those eligible under Category 1, Flood Protection Planning for Watersheds, of the 2020 Flood Intended Use Plan. This category of funding was designed to support studies that conduct planning of entire watersheds no smaller than Hydrologic Unit Code 10-digit (HUC-10) to better inform the development of strategies using structural and nonstructural measures before a flood event, such as determining and describing problems from or related to flooding, identifying and planning solutions to flooding problems, and estimating the benefits and costs of these solutions.
    [Show full text]
  • I-69 Segment Committee 1 Meeting February 9, 2011 9:00 AM
    I-69 Segment Committee 1 Meeting February 9, 2011 9:00 AM Welcome/Introductions Administrative Leah Olivarri Facilitator Review January 2011 meeting notes I-69 Program Priority Factors Review Michael Sexton Facilitator Motor vehicle traffic crash data Traffic forecasts Draft I-69 Program PowerPoint Presentation Michael Sexton Facilitator Discussion of Next Meeting Activities Doise Miers TxDOT Public engagement activities www.txdot.gov/public_involvement/committees/i69/default.htm 271 CSC 1 Crash Rates 87 2005-2009 Average 37 Lake Crook 32 Paris 41 Crash Rate 71 30 259 29 <L 0am.7a5r Statewide Average Between 0.75 to 1.25 times StatewideR eAdv Rerivaegre 82 > 1.25 Statewide Average 8 271 Texarkana Relief Route 1.18a 82 Bowie 1.18b 37 9.99DeUltSa 59 Section ID 9.99 US 84 Section ID River Crest Lake Cooper City/ Big Creek 71 9.99 Redesignate to Interstate Section ID 30 1.17 67 Wright Patman Lake CoopeOr Lakte her 19Commercial Airport 59 Titus 77 Highway - Interstate Queen City 71 Highway - US Marked Franklin Lake Sulphur Springs Cass 1.16 Highway - State Marked Atlanta Hopkins Morris 77 Urban Area Lake Monticello Welsh Reservoir 8 A S 1.15 A R K A N S County r Lake Cypress Springs Lake Bob Sandlin e Linden v 3 0 6 12 i 24 49 R 1.14 s 154 Miles 1 o Camp Ellison Creek Reservoir 155 z 2 a WORKING DRAFT 59 Vivian r Lake Winnsboro Project Section DesignatioB ns are based on 1.13 271 Johnson Creek Reservoir Marion the CSC input to datLeake Quitman L Source: TxDOT Crash Records (2005-2009) 49 49 Bossier Rains Lake Fork Reservoir Lake O' The
    [Show full text]
  • Neches River Basin
    Ore City Rockwall Hunt Jefferson Quitman CADDO LAKE Rains Alba LAKE GILMER LAKE TAWAKONI LAKE FORK RESERVOIR ¤£59 LAKE O' THE PINES 259 Uncertain Gilmer ¤£ Marion ¤£71 Terrell NEW TERRELL CITY LAKE Wood Wills Point LAKE HOLBROOK Upshur CC y y p p r r e e s s s s Edgewood Fruitvale Grand Saline Mineola Webster Bossier LAKE HAWKINS ¤£79 Oak Ridge ¤£69 ¤£80 ¨¦§220 East Mountain 220 Nesbitt ¨¦§ Post Oak Bend Hawkins Big Sandy Union Grove ¤£80 Marshall Scottsville LAKE GLADEWATER Warren City Kaufman Gladewater Harrison ¨¦§20 Kaufman White Oak Van Zandt Clarksville City Longview 79 Canton Hallsville Waskom Caddo ¤£ Van 20 Oak Grove Lindale ¨¦§ Winona Gregg Hideaway BRANDY BRANCH COOLING POND ¤£271 Lakeport Easton Kemp 49 Kilgore ¨¦§ Smith Edom LAKE CHEROKEE ¤£59 ¤£79 Tatum Mabank Gun Barrel City 71 Tyler New Chapel Hill ¤£ Chandler Basin Map Seven Points Brownsboro Overton Eustace New London Beckville LAKE TYLER SS a a b b i i n n e e Tool Payne Springs Murchison LAKE TYLER EAST MARTIN LAKE ¤£171 Noonday Arp CEDAR CREEK RESERVOIR Whitehouse FOREST GROVE RESERVOIR LAKE ATHENS LAKE PALESTINE Panola Athens Carthage Moore Station Henderson ¤£79 Red River 79 Malakoff Troup ¤£ Trinidad Henderson Bullard Coffee City Rusk De Soto 84 49 Kerens 175 ¤£ ¨¦§ Navarro ¤£ LAKE MURVAUL Powell Berryville Goodlow Poynor Gary Frankston Lake Columbia ¤£171 Cuney Joaquin Mildred RICHLAND-CHAMBERS RESERVOIR New Summerfield Tenaha Eureka Jacksonville LAKE STRIKER T rin Mount Enterprise Timpson it y LAKE JACKSONVILLE R i v Mu e Neches Compost Facility d Cr r e Gallatin
    [Show full text]