Tier I Site & Biological Evaluation Attachments

Tier 1 Site Assessment & BEF Supplemental Attachments US Highway 79 CSJ: 0204-01-063 Attachment 1 Project Description Project Location Map – Aerial Attachment 2 USFWS Official Species List TPWD Annotated County List of Rare Species (August 2018 List) Species Impact Table TPWD Annotated County List of Rare Species (April 2019 List) Attachment 3 TXNDD Element of Occurrence (EO) Map - redacted (not public information) Karst and Aquifer Species Map Attachment 4 EMST Vegetation Map EMST Report Attachment 5 Observed Vegetation Map Observed EMST Vegetation Table Attachment 6 Project Area Soil - Report and Map Attachment 7 Project Area Photographs Attachment 1 Project Description Project Location Map (Aerial) Project Description US Highway 79 From Interstate Highway 35 to East of Farm-to-Market Road 1460 CSJ 0204-01-063 Introduction The Texas Department of Transportation (TxDOT) Austin District is proposing improvements to United States Highway 79 (US 79) between Interstate 35 (I-35) to east of Farm-to-Market Rd 1460 (FM 1460) within the city of Round Rock in Williamson County, Texas. Existing Facility Within the project limits, US 79 consists of four 12-foot main lanes (two in each direction) with 10-foot outside shoulders. Some locations along the corridor have a central turn lane measuring 14 feet. The existing US 79 right-of-way (ROW) varies from 150 to 300 feet wide. Proposed Facility Proposed improvements include widening the existing US 79 roadway to add a third travel lane in each direction and installing a raised median for safety. Improvements to intersections would include overpasses at US 79/Mays Street and US 79/FM 1460 and altering the US 79/I-35 Intersection. Driveways and access points would be modified to improve safety and traffic flow. The proposed improvements also include installing shared-use paths on both sides of US 79 to improve pedestrian and bicycle accommodations. The proposed project occurs on 79.1 acres of existing right-of-way, 0.18 acres of existing easement, and would require approximately 10.32 acres of new right-of-way for a total project footprint of 89.53 acres. W e a y t a nc D a D und e r S r e W e S l r e B lvd p Ch B i e rs h d P l a n a e un n ttl o c k d S e d Ol ollo Cir w Ap l Brad e le o r o l y C rne l W L Dr e a d r rry n u V y e C 0 Tr vi d l e a 6 D k 4 1 C d B n R o r L s M l v u D a m n F d G n ire Dr A d r k L tr y A roo F a r B J r Bowma n e w e ste y D L le r e k o c a S u n d B e m suckl g u y h e Al a n A a i n Ho r a e Sta r l e i r n i e l r ir t v M i B a D A d rbe na D s a e s r V a a o r r e x r e D P T ll l a v rh R s ar e Lantana B d r a m r D D r n R 379 d o ST R o E r s D n gg ne n b a y y th Ln m er a e L A B ow b e W v t B r L e r G n B n a D e yla nd St d De nn i s i v o Virginia Dr r P Project Begin Ka rolyn Dr Me sa P Project End Oa k Dr Wro a rk Dr xton Way C h i s ¤£79 h o l m t T S r a n i R l w t Dr e eca n Ave R Sunse P y y o r a L t e d v D W e le ista A e S rc V w Ci g t w r i B o B s o l l S h L t i l e L u S t h S S a in 35 e a r G a a § e t t c W ¦¨ n M m o k e p P e p n ve p t S S A e e R a a on S t M t s e r e er v s nd A d t S r 62 A in a t 0 t M s t n Au s S i r n a t L n D S k R a ar u n t P p B R a t Dr d le u ir v g r o C l o n o B L f k E e r n e Mimo s M u e l R t e r e d s a e c a Trl b e a m y D R bi w t r s o i r d C W a S G r e a e t . N M y d a e T sh W k R S . t l h y ou Path Dr R n l arden h d G D i A R t o a oc e r k r a W N an St d r m og t T L W v i P c H e n l p son C s M y o B g t Redw in e r n n m e i i d m n w s d J a g a i w r l e s v a n Willamson County D k Project e r S L C e a g Area t dale r Fern n P k n G L i c h o e s 195 R TS c u y Georgetown C ttis School Rd Georgetown Ga o 29 O TS J x f n Roouunndd Roocckk o r L r y h d p e B Z lvd 0 2,000 Feet Project Location Project Location I 0 500 Meters (Aerial Base) Prepared for: TxDOT 1 in = 2,000 feet Scale: 1:24,000 US 79 from I-35 to East of FM 1460 Aerial Source: DigitalGlobe (2018) CSJ 0204-01-063 Date: 11/7/2019 G:\Projects\TXDOT\US79_I35_FM1460\BEF_Location_Aerial_20191030.mxd Attachment 2 USFWS Official Species List TPWD Annotated County List of Rare Species (August 2018 List) Species Impact Table TPWD Annotated County List of Rare Species (April 2019 List) United States Department of the Interior FISH AND WILDLIFE SERVICE Austin Ecological Services Field Office 10711 Burnet Road, Suite 200 Austin, TX 78758-4460 Phone: (512) 490-0057 Fax: (512) 490-0974 http://www.fws.gov/southwest/es/AustinTexas/ http://www.fws.gov/southwest/es/EndangeredSpecies/lists/ In Reply Refer To: October 11, 2019 Consultation Code: 02ETAU00-2017-SLI-1309 Event Code: 02ETAU00-2020-E-00185 Project Name: U.S. Highway 79 Subject: Updated list of threatened and endangered species that may occur in your proposed project location, and/or may be affected by your proposed project To Whom It May Concern: The enclosed species list identifies threatened, endangered, proposed and candidate species, as well as proposed and final designated critical habitat, that may occur within the county of your proposed project and/or may be affected by your proposed project. The species list fulfills the requirements of the U.S. Fish and Wildlife Service (Service) under section 7(c) of the Endangered Species Act (Act) of 1973, as amended (16 U.S.C. 1531 et seq.). Please note that new information based on updated surveys, changes in the abundance and distribution of species, changed habitat conditions, or other factors could change this list. Feel free to contact us if you need more current information or assistance regarding the potential impacts to federally proposed, listed, and candidate species and federally designated and proposed critical habitat. Also note that under 50 CFR 402.12(e) of the regulations implementing section 7 of the Act, the accuracy of this species list should be verified after 90 days. This verification can be completed formally or informally as desired. The Service recommends that verification be completed by visiting the ECOS-IPaC website at regular intervals during project planning and implementation for updates to species lists and information. An updated list may be requested through the ECOS-IPaC system by completing the same process used to receive the enclosed list. The purpose of the Act is to provide a means whereby threatened and endangered species and the ecosystems upon which they depend may be conserved. Under sections 7(a)(1) and 7(a)(2) of the Act and its implementing regulations (50 CFR 402 et seq.), Federal agencies are required to utilize their authorities to carry out programs for the conservation of federally listed as threatened 10/11/2019 Event Code: 02ETAU00-2020-E-00185 2 or endangered species and to determine whether projects may affect these species and/or designated critical habitat. A Biological Assessment is required for construction projects (or other undertakings having similar physical impacts) that are major Federal actions significantly affecting the quality of the human environment as defined in the National Environmental Policy Act (42 U.S.C. 4332(2) (c)). For projects other than major construction activities, the Service suggests that a biological evaluation similar to a Biological Assessment be prepared to determine whether the project may affect listed or proposed species and/or designated or proposed critical habitat.

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