CO TAQA Technical Report - Managed Lanes Project

CO TAQA Technical Report

I-35E/US 67 Project Dallas District I-35E from US 67 to I-30 and US 67 from I-20 to I-35E CSJ: 0442-02-088, 0196-03-269, 0261-03-030 Dallas County, Texas Prepared by: HNTB Corporation June 2016

The environmental review, consultation, and other actions required by applicable Federal environmental laws for this project are being, or have been, carried-out by TxDOT pursuant to 23 U.S.C. 327 and a Memorandum of Understanding dated December 16, 2014, and executed by FHWA and TxDOT.

CO TAQA Technical Report I-35E/US 67 Project

CSJs: 0442-02-088, etc. i June 2016

TABLE OF CONTENTS

1. Introduction ............................................................................................................................ 2

1.1. Existing Facility ............................................................................................................... 2

1.2. Proposed Facility ............................................................................................................ 2

2. Carbon Monoxide Traffic Air Quality Analysis (CO TAQA) .................................................... 3

2.1. Background .................................................................................................................... 3

2.2. Analysis Methodology and Assumptions ........................................................................ 4

2.3. CO TAQA Receptors ...................................................................................................... 5

2.4. Analysis Results ............................................................................................................. 6

TABLES

Table 2-1: Traffic Data ................................................................................................................. 4

Table 2-2: CO Emission Rates (gpm) .......................................................................................... 5

Table 2-3: Modeling Parameters .................................................................................................. 5

Table 2-4: Modeled Roadway Information ................................................................................... 6

Table 2-5: Carbon Monoxide Concentrations .............................................................................. 7

ATTACHMENTS

ATTACHMENT A: Exhibits

ATTACHMENT B: Supplemental Documentation


CSJs: 0442-02-088, etc. 2 June 2016

1. Introduction The Texas Department of Transportation (TxDOT) proposes improvements to Interstate Highway 35 East (I-35E) from U.S. Highway (US 67) to Interstate Highway 30 (I-30) and along US 67 from Interstate Highway 20 (I-20) to I-35E a total of approximately 11 miles in Dallas County, Texas. The I-35E/US 67 Project (proposed project) has been referred to in the past as the “Southern Gateway Managed Lanes Project” (see Attachment A, Exhibit 1: Project Location Map).

1.1. Existing Facility I-35E between Colorado Boulevard (Blvd.) and Reunion Blvd. consists of 5 northbound and 4 southbound mainlanes that include an 11-foot (ft) wide reversible high occupancy vehicle (HOV) lane. This section is currently under construction and was approved as part of the Dallas Horseshoe Project (CSJ. 0196-03-205, etc.) which received A Finding of No Significant Impact on September 18, 2012. Once construction is complete (anticipated 2017), the I-35E northbound bridge will consist of 3 mainlanes; 2 reversible HOV lanes, and 5 Collector-Distributor (CD) lanes, and a 6-ft sidewalk. The I-35E southbound bridge would consist of 4 mainlanes, 4 CD lanes; and 6-ft sidewalks along the outside of the CD road. The right-of-way (ROW) at the Dallas Floodway crossing is approximately 848 ft. wide. On I-35E from US 67 to Colorado Blvd. the existing lane configuration is 8 mainlanes, 4 in each direction; with one reversible HOV lane. I-35E between Fairshop Drive (Dr.) (near the southern limits of construction along I-35E) and US 67 is 6 mainlanes (3 in each direction). South of Colorado Blvd., the existing ROW along I-35E varies from approximately 244 ft to 435 ft. On US 67 from I-20 to I-35E the existing lane configuration is 4 mainlanes, 2 in each direction, with 1 concurrent HOV lane. The existing ROW along US 67 varies from approximately 305 ft to 469 ft. Except for the bicycle accommodations within the section of I-35E between Colorado Blvd. and Reunion Blvd., currently under construction as part of the Dallas Horseshoe Project, no bicycle accommodations exist within the I-35E/US 67 Project limits. Similarly, sidewalks are currently being implemented as part of the Dallas Horseshoe Project. Discontinuous pedestrian accommodations (sidewalks) currently exist within the project limits.

1.2. Proposed Facility The proposed project or “Build Alternative” would consist of improvements to I-35E between US 67 and Reunion Blvd. and to US 67 between I-20 and I-35E. The improvements would consist of converting the existing HOV lanes to reversible non-toll express lanes, adding reversible non-tolled express lanes and general purpose lanes (mainlanes), along with bicycle and pedestrian accommodations. TxDOT is also


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planning local enhancements consisting of a deck plaza along I-35E, near Ewing Avenue (Ave.). The enhancements would be funded by and maintained by the City of Dallas. I-35E improvements from US 67 to Fairshop Dr. consist of a tie in/transition into the existing facility. The proposed project is shown in Attachment A, Exhibit 1: Project Location Map and described below.

a) I-35E between Colorado Blvd. and Reunion Blvd.: Convert 2 existing reversible HOV lanes to 2 reversible non-tolled express lanes.

b) I-35E between the US 67 and Colorado Blvd.: Full reconstruction to include two reversible non-tolled express lanes, increasing the number of the mainlanes from 8 to 10, and increasing the number of frontage road lanes from 4 to 4/6.

c) US 67 from I-20 to I-35E: Partial reconstruction to change the existing concurrent HOV lane to one reversible non-tolled express lane within the existing median and increasing the number of mainlanes from 4 to 6 along with slip ramp modifications.

d) Sidewalks and 14-ft shared use lanes to accommodate vehicles and bicyclists would be implemented along those frontage roads where reconstruction is proposed.

e) Dedicated bicycle lanes and sidewalks would be implemented at cross-streets where reconstruction is proposed.

2. Carbon Monoxide Traffic Air Quality Analysis (CO TAQA) This Carbon Monoxide Traffic Air Quality Analysis (CO TAQA) technical report was prepared in accordance to the TxDOT’s CO TAQA Standards Operating Procedures, Documentation Standard for a CO TAQA Technical Report, and Standard Operating Procedures for Preparing Air Quality Statements. This report documents results of the CO TAQA analysis, and supports the environmental document that evaluates the social, economic, and environmental impacts resulting from the proposed project. The Build Alternative was evaluated in 2021, the estimated time of completion (ETC), and in 2037, the design year.

2.1. Background If a roadway project is not exempt under 40 Code of Federal Regulations (CFR) 93.126, is adding capacity and would reach average annual daily (AADT) traffic greater than 140,000 by the design year, a CO TAQA is required. Because the proposed project would not be exempt per 40 CFR 93.126, would increase capacity, and the AADT for the ETC (2021) and design year (2037) is above 140,000 vehicles per day (vpd), a CO TAQA is required. Specifically, traffic for the ETC year (2021) for I-35E and US 67 is estimated to be 218,000 vehicles per day (vpd) and 125,000 vpd, respectively. Traffic for the design year (2037) for I-35E and US 67 is estimated to be 311,400 vpd and 192,800 vpd, respectively. A consultative call between TxDOT and the North Central Texas Council of Governments (NCTCOG) to discuss the CO TAQA methodology and assumptions was held on January 26, 2016. Notes from the coordination call are


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available in Attachment B. The methodology and assumptions for this CO TAQA were determined during the call.

2.2. Analysis Methodology and Assumptions Carbon monoxide concentrations for the proposed project were modeled using CALINE3 and MOVES2010b and factoring in adverse meteorological conditions and sensitive receptors at the ROW line in accordance with the Standard Operating Procedure (SOP) for Complying with CO TAQA Requirements. The traffic data and K factor utilized in the analysis were obtained from the TxDOT Transportation Planning and Programming Division (TP&P) approved on June 3, 2016 (Attachment B: Traffic Data), to determine if the CO concentrations exceed the National Ambient Air Quality Standards (NAAQS) in the ETC and design years. The traffic data utilized in the analysis for each roadway segment analyzed for both ETC and design year is included in Table 2-1.

Table 2-1: Traffic Data

TAQA AREA ROADWAY SEGMENT

ETC (2021) DESIGN YEAR (2037)

2021 ADT

2021 DHV

2037 ADT 2037 DHV

AREA 1: US 67 South of Red Bird Ln.

US 67 NBFR 4,340 404 6,500 605

US 67 EXIT RAMP

9,140 850 10,900 1,014

US 67 NBML 51,080 4,750 72,600 6,752

US 67 SBML 50,900 4,734 74,900 6,966

US 67 ENTRY RAMP

10,700 995 13,500 1,256

US 67 SBFR 4,340 404 5,700 530

AREA 2: I-35E North of

8TH St.

I-35E NBFR 12,220 917 15,500 1,163

I-35E EXIT RAMP 1,760 132 2,400 180

I-35E NBML 105,300 7,898 134,900 10,118

I-35E EXL 10,880 816 20,400 1,530

I-35E SBML 100,560 7,542 121,200 9,090

I-35E ENTRY_RAMP

5,340 401 7,100 533

I-35E SBFR 7,220 542 8,500 638 Source: TP&P Approved Traffic Diagrams and Study Team (June 2016). ADT=Average daily traffic in vehicles per day. DHV=Design hourly volume in vehicles per hour. NBFR=North bound frontage road NBML=North bound main lane SBML=South bound main lane SBFR=South bound frontage road EXL=Express lane


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The CO emission rates in grams per mile (gpm) corresponding to urban roadways for the design speeds of 60 miles per hour (mph) (general purpose lanes and express lanes) and 40 mph (frontage roads and ramps) are shown in Table 2-2 were utilized in the analysis.

Table 2-2: CO Emission Rates (gpm)

SPEED

2021 2037

URBAN RESTRICTED ACCESS

40 2.622 2.427

60 2.580 2.399

URBAN UNRESTRICTED ACCESS

40 1.661 1.507

60 1.587 1.446

Source: MOVES2010b TxDOT emission rate look-up tables (July 2014).

Other modeling parameters used in the analysis are included in Table 2-3.

Table 2-3: Modeling Parameters Atmospheric stability class 6

Mixing height 1,000 meters Wind speed 1 m/s

Wind directions modeled (in degrees)

30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330,

360 K-factors (in percent) 7.5 (I-35E) and 9.3 (US 67)

Design Mainlane/Express lanes vehicle speeds

60 mph

Design Frontage Roads/Ramps vehicle

speeds 40 mph

Source: Study Team (June 2015).

2.3. CO TAQA Receptors The TAQA was completed for two receptors within areas with the highest traffic volumes within the project corridor. These areas were identified to be along US 67 ROW, between Club Terrace Dr. and Red Bird Ln. or “Area 1” and along the I-35E ROW between 8th Street (St.) and 7th St. or “Area 2.” The TAQA receptor location areas are shown in Attachment A, Exhibit 2: TAQA Receptor Locations Map on Aerial and in Exhibit 3, TAQA Receptor Locations Map on Schematic. The distances from each roadway to the receiver are graphically shown in Attachment B. Table 2-4 includes the modeled roadways, distances of the roadways to the receptor for each area, ROW width, number of lanes, speed, DHV and emission factors used in the analysis.


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Table 2-4: Modeled Roadway Information

Modeled Roadway DHV

Distance to

Receptor in ft

Number of

Lanes

Speed in vpd

CO Emission

Factor

Year 2021

AREA/ RECEPTOR

1

US 67 NBFR 404 28 2 40 1.661 US 67 Exit Ramp 850 91 1 40 2.622

US 67 NBML 4750 166 3 60 2.580

US 67 SBML 4734 228 4 60 2.580 US 67 ENTRY

RAMP 995 308 1 40

2.622

US 67 SBFR 404 343 2 40 1.661

AREA/ RECEPTOR

2

I-35E NBFR 917 26 2 40 1.661 I-35E EXIT RAMP 132 58 1 40 2.622

I-35E NBML 7898 117 5 60 2.580 I-35E EXL 816 184 2 60 1.587

I-35E SBML 7542 238 5 60 2.580

I-35E ENTRY RAMP 401 296 1 40 2.622 I-35E SBFR 542 336 2 40 1.661

Year 2037

AREA/ RECEPTOR

1

US 67 NBFR 605 28 2 40 1.507 US 67 Exit Ramp 1014 91 1 40 2.427

US 67 NBML 6752 166 3 60 2.399 US 67 SBML 6966 228 4 60 2.399

US 67 ENTRY RAMP

1256 308 1 40 2.427

US 67 SBFR 530 343 2 40 1.507

AREA/ RECEPTOR

2

I-35E NBFR 1163 26 2 40 1.507 I-35E EXIT RAMP 180 58 1 40 2.427

I-35E NBML 10118 117 5 60 2.399 I-35E EXL 1530 184 2 60 1.446

I-35E SBML 9090 238 5 60 2.399 I-35E ENTRY RAMP 533 296 1 40 2.427

I-35E SBFR 638 336 2 40 1.507

Source: TP&P, Study Team (June 2013).

2.4. Analysis Results

As indicated in Table 2-5, the 1-hr CO concentration for Area 1 is approximately 7 percent of the NAAQS and approximately 8 percent of the NAAQS for Area 2 in 2021 and 2037. The 8-hr CO concentration is approximately 30 percent and 32 percent of the NAAQS for Areas 1 and 2, respectively. Local concentrations of CO are not expected to exceed national standards at any of the receptors in 2021 or 2037. The CALINE3 model input and output files are available in ECOS.


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Table 2-5: Carbon Monoxide Concentrations

Year Location Description 1-HR CO

Concentration (ppm)*

1-HR% NAAQS

8-HR CO Concentration

(ppm)*

8-HR% NAAQS

2021 Area 1: US 67 Between Club Terrace Dr. and

Red Bird Ln.

2.50 7.14 2.66 29.56

2037 2.60 7.43 2.72 30.22

2021 Area 2: I-35E between

8th St. and 7

th St.

2.80 8.00 2.84 31.56

2037 3.00 8.57 2.96 32.89

Source: Study Team (June 2016). *The National Ambient Air Quality Standards (NAAQS) for CO are 35 parts per million (ppm) for 1-hr and 9 ppm for 8-hr. Analysis includes a 1-hour background concentration of 1.9 ppm and an 8-hr background concentration of 2.3 ppm [Appendix B of the TxDOT SOP for Complying with CO TAQA Requirements ()].

ATTACHMENT A

Danieldale Rd

Ledbetter Dr

!(342

Kiest Blvd

Za

ng

Blv

d

!(408

Colorado Blvd

!(12

0167

DALLAS

LANCASTER

DESOTO

DUNCANVILLE

I-35E from Colorado Blvd. to Reunion Blvd.:Change 2 Rever. HOV Lanes to

2 Rever. non-tolled express lanes(No added capacity)

CSJs. 0196-03-269 & 0442-02-088

I-35E from US 67 and Colorado Blvd.:Full reconstruction including change of

1 exist. Rever. HOV lane to 2 Rever. non-tolled express lanes, and widening of GPs from 8 to 10 lanes and

FRs from 4 to 4/6 lanes.

CSJ. 0442-02-088

US 67 from I-20 to I-35E:Reconstruction to change 1 exist. Concur. HOV lane

to 1 Rever. non-tolled expresslane within the median and

widening of GPs from 4 to 6 lanes.CSJ. 0261-03-030

Reunion Blvd

§̈¦35E

§̈¦20

§̈¦30

§̈¦45

0 1 2

Miles

Dallas County

Ellis County

Collin County

TarrantCounty

Denton County

KaufmanCounty

RockwallCounty

±

Sources: NCTCOG GIS Data - counties,

cities, streets, rivers, and lakes

LEGEND

Proposed Project Limits

I-35E/ US 67 PROJECTI-35E FROM US 67 TO I-30 US 67 FROM I-20 TO I-35E

CO TAQA TECHNICAL REPORT DALLAS COUNTY, TEXAS

EXHIBIT 1PROJECT LOCATION MAP

I-35E/US 67 PROJECT

I-35E: FROM US 67 TO I-30US 67 : FROM I-20 TO I-35E

CO TAQA TECHICAL REPORTDALLAS COUNTY, TEXAS

EXHIBIT 3TAQA RECEPTOR LOCATIONS MAP

ON SCHEMATIC

Note: Based on April 2016 Schematic Plans

§̈¦35E

§̈¦30

§̈¦45

§̈¦20

£¤67

±

AREA 1

AREA 2

£¤67 §̈¦35E

NOT TO SCALE

RECEPTOR 1 RECEPTOR 2

")

8T

H S

T

§̈¦35E

!(180

FL

EM

ING

P

L

CLIFF ST

EADS AVE

R L THORNTON FWY

7T

H S

T

6T

H S

T

DA

LE

ST

JEFFERSON BLVD

CH

UR

CH

ST

Tenth Street

Historic

District

13B3

I-35E/US 67 PROJECT

I-35E: FROM US 67 TO I-30US 67 : FROM I-20 TO I-35E

CO TAQA TECHICAL REPORTDALLAS COUNTY, TEXAS

EXHIBIT 2TAQA RECEPTOR LOCATIONS MAP

ON AERIAL

Note: Based on April 2016 Schematic Plans

§̈¦35E

§̈¦30

§̈¦45

§̈¦20

£¤67

±

LEGEND

AREA 1

£¤67

RECEPTOR 1

CLUB WOOD DR

CLU

B M

AN

OR

DR

RED

BIR

D L

N

CLU

B T

ER

RA

CE D

R

RE

DB

IRD

PL

Existing ROW

Proposed ROW

NRHP Listed District

Potential Relocation

AREA 2

± ±0 250 500125

Feet

0 250 500125

Feet

Source: TNRIS 2015 NAIP aerial imagery, roads

ProposedPavement

GeneralPurpose Lane

Managed Lane

Ramp

Remove

Sidewalk

Displacement

Driveway

Bridge

Frontage/CrossRoad

RECEPTOR 2

ATTACHMENT B

CSJ: 0442-02-088, etc. 1 January 2016

Air Quality Consultative Call

Date: January 26, 2016, 1:30pm

MEETING NOTES

Attendees: Ashton Strong (TxDOT), John Nguyen (TxDOT), Sandra Williams (TxDOT), Tim Wood (TxDOT), Sandy Wesch (NCTCOG), Berrien Barks (NCTCOG), Rusty Ozmer (HNTB), Lupe Pettit (HNTB).

The participants were provided with the following project information and proposed modeling methodology for MSAT and CO. The group was also provided with a project location map and 2003 approved traffic showing ADT above 140,000 ADT. A summary of the items discussed and decisions made are included on pp.2 and 3.

1. Background: Since the last air quality consultative call held on August 14, 2015, the project limits

and scope have changed. The project will require a quantitative MSAT analysis because it is an

increase capacity project with over 140,000 ADT and is federally funded. The following describes the

proposed project as of January 2016.

1.1. Limits: I-35E from US 67 to Reunion Blvd. and US 67 from I-20 to I-35E for a project length of

approx. 11 miles (see Exhibit 1: Project Location Map);

1.2. Proposed improvements: The improvements would consist of conversion of existing HOV lanes

to reversible non-toll express/managed lanes, addition of reversible non-tolled express/managed

lanes, and addition of general purpose lanes, along with bicycle and pedestrian accommodations

as follows: a) I-35E between Colorado Blvd. and Reunion Blvd.: Convert two reversible HOV lanes to two

reversible non-tolled express/managed lanes.

b) I-35E between the US 67 and Colorado Blvd.: Full reconstruction to include two reversiblenon-tolled express/managed lanes, widening of the mainlanes from 8 to 10, and increasing the number of frontage road lanes.

c) US 67 from I-20 to I-35E: Partial reconstruction to change the existing concurrent HOV lane toone reversible non-tolled express/managed lane within the existing median and widening the mainlanes from 4 to 6 along with slip ramp modifications.

d) Full reconstruction of the I-35E/US 67 Interchange.

1.3. Planning: The project will be consistent with the 2040 MTP and STIP currently under

development.

1.4. Environmental document: EA per workshop held With FHWA and ENV on June 13, 2014.

1.5. Construction Begin: 2017

1.6. ETC: 2021

1.7. MTP Horizon Yr: 2040

1.8. Anticipated FONSI: December 2016

1.9. Traffic: Per attached TP&P traffic from 2003 that traffic within project limits is over 140,000 ADT

in year 2030. Traffic updates are in progress and are anticipated to be above 140,000 ADT.

2. Proposed methodology for MSAT

2.1. MSAT methodology: link-by-link/Quantitative MSAT

2.2. Affected transportation network threshold: links with traffic changes between Build and No-build

scenarios of +/- 5%

I-35E/US 67 PROJECT

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2.3. MSAT study area: NCTCOG MPA affected transportation network

2.4. Analysis years/scenarios: Base year (2017), 2040 Build, and 2040 No-Build with no interim year.

2.5. Traffic data: Mobility 2040 MTP 2017 and 2040 networks

2.6. Pollutants: acrolein, benzene, 1,3-butadiene, diesel particulate matter plus diesel exhaust

organic gases (DPM), formaldehyde, naphthalene, and polycyclic organic matter.

2.7. Data Needs: +/-5% affected network and MSAT emissions factors processed with MOVES2010b

(if generated before Oct. 7, 2016) or with MOVES2014 (if generated after Oct. 7, 2016). To be

provided NCTCOG by 4/29/16.

3. Proposed methodology for TAQA (CO analysis)

3.1. Analysis years/scenarios: 2021 (ETC year) and 2040 (MTP horizon year)

3.2. Data Needs: MOVES emission factor look up tables from ENV, traffic data (TP&P approved

traffic numbers). The scenario traffic numbers will be derived from the TP&P approved numbers.

3.3. CO Model: CALINE3/CAL2001 (TxDOT’s software)

4. Additional Items of discussion:

4.1. Project level toll analysis: Not needed because no tolling component.

4.2. Conformity report would be submitted to FHWA as early as possible for FHWA review and

approval once the 2016 conformity is approved by FHWA.

Summary of discussion/decisions:

Ashton inquired about an additional reversible managed lane along US 67 in 2040 that had been

mentioned in Sandy’s email but was not shown in the draft MTP tables. Sandy said that the MTP

tables are incorrect for US 67 (year 2040). They currently show 1R but should be 2R and will be

revised.

MSAT: Tim and Sandy discussed the proposed MSAT out-year scenario year. Sandy disagrees

with the proposed year of 2040 because that network would not reflect the proposed project (3-

1R-3), but the ultimate configuration for US 67 (3-2R-3). Sandy was concerned about

inconsistency in the EA, which would clear the interim configuration, not the ultimate configuration

and from the conformity point of view. Tim clarified that conformity would not apply to MSAT and

explained that the purpose of the 2040 scenario is to show the trend of MSAT emissions mainly

for comparison purposes, and that it is common for environmental documents to have different

analysis years for different resources. It was mentioned that the schematic will use 2017 and

2037 traffic. Traffic noise would be modeled for these same years.

Tim stated that for MSAT TxDOT uses the MTP horizon year for the out year. He also explained

the difference between the “project” and the “corridor”. Tim added that the no-build 2040 scenario

would consist of removal of the proposed project and would leave all other projects as proposed

in 2040. The group discussed what is involved in coding of the no-build scenario.

Although atypical, and to avoid confusion, TxDOT agreed to complete the MSAT for 2037 instead

of 2040 (MTP horizon year) because the project is environmentally being cleared as an interim

project. In summary:

o MSAT scenario years are 2017 (base), 2037 no-build, and 2037 build

o The affected network would be based on the +/-5% threshold and will be provided by

NCTCOG.

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o NCTCOG will provide emissions for the MSAT analysis. For this purpose, NCTCOG will

use the MSAT emission factors provided by Tim, which were determined using

MOVES2010b. Tim advised that once MOVES2014 is required, TxDOT will provide

updated emission tables. This requirement will come into effect on Oct. 7, 2016.

CO: The group agreed that the proposed scenarios for the CO analysis should be 2021 (ETC)

and 2037 (design year) using the CALINE3/Cal2001. TPP approved traffic numbers will be used

of the CO analysis. TxDOT emission lookup tables available in the air quality toolkit online shall

be used in the analysis.

Schedule: Sandy said that the MSAT data would be provided in April of 2016. It is anticipated that

the RTC will approve the MTP in March of 2016. Conformity is anticipated to be approved by

FHWA in June/July 2016.

575+00

580+00

585+00

590+00

TAQA AREA 1 (NEAR STA. 580+00)

TAQA R1

DIST=28 FT

US67 NBFR:2LANES:2037 ADT=6500

DIST= 91FT

US67 EXIT RAMP:1LANE:2037 ADT=10900DIST=166FT

US67 NBML:3LANES:2037 ADT=72600

DIST=228FT

US67 SBML:4LANES:2037 ADT=74900

DIST=343FT

US67 SBFR:2LANES:2037 ADT=5700

DIST=308FT

US67 ENTRY RAMP:1LANE:2037 ADT=13500

CLUB TERRACE

RED BIRD LANE

RED BIRD LANE

35R52

Elev. 490

NAC-C (INTERIOR)

35R52 - COUNTY COURTHOUSE

Elev 485.25

E 2488746.13

N 6961827.43

TAQA AREA 2

TAQA R2

I35E_NBFR-2LANES:2037 ADT=15500

DIST=26FT

I35E_EXITRAMP-1LANE:2037 ADT=2400

DIST=58FT

I35E_NBML-5LANES:2037 ADT=134900

DIST=117FT

I35E_EXL-2LANES:2037 ADT=20400

DIST=184FT

I35E_SBML-5LANES:2037 ADT=121200

DIST=238FT

I35E_ENTRYRAMP-1LANE:2037 ADT=7100

DIST=296FT

I35E_SBFR-2LANES:2037 ADT=8500

DIST=336FT

E. 8th STREET

E. 8th STREET

E. 7th STREET

CO TAQA Technical Report - Managed Lanes Project

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