The I-69 map uses the ArcMap 8.2 software developed by the Environmental Systems Research Institute (ESRI). This is the same mapping software that is used by the State of Indiana (INDOT) and the U.S. federal government (Federal Highway Administration).

The steps taken to generate the I-69 map were to search the Internet for each of the eight I-69 member state's highway plans.  The researcher was able to download these official plans for nearly the entire route.  These plans were then projected onto the U.S. national map and the routes were re-digitized to complete a composite whole I-69 plan.  A map projection called Universal Transverse Mercator (UTM) was used, as this is generally agreed upon as producing the most accurate and precise information.  The distance measurements are automatically generated, and double and triple check redundancy tests were used to assure that the information is correct.

There are a variety of route options for I-69 and not all of them were analyzed.  However, the shortest and longest possible routes were analyzed as well as routes representing a median distance.  These options were compared to the existing Interstate Highways that connect Laredo, Texas to Port Huron, Michigan.

Findings

The shortest possible I-69 route is 46 miles longer than the existing Interstates.  The median I-69 route is 84 miles longer than the existing interstates.  The longest version includes the Houston port access with a build out that utilizes the Interstate 10-Interstate 35 connection between Houston and Laredo.  This makes the proposed I-69 route longer by 160 miles versus utilizing existing interstate from Laredo to Port Huron.

 This analysis corroborates exactly the mileage for I-69 in a government study titled "Corridor 18 Special Issues Study" released in 1997.  This analysis concluded that the median distance for I-69 between Indianapolis, Indiana, and Laredo, Texas, would be 1,430 miles.  The Corridor 18 Special Issues Study also found that I-69's length would be 1,430 miles.

I-69 map SOURCES

This $28.5 million figure comes from the aaroads.com Corridor 18/20 report [$28,586,000 page 2]. It is a very good reference source.  It explains the congressional funding process of the National Corridor Planning and Development Program [NCPD] which was started by Texas Congressman Tom DeLay. The publishing of maps on the web seems to be a standard practice for many DOT's  http://www.aaroads.com/high-priority/corr18.html

An interesting note; of the 2,013 miles of new interstate construction under the I-69 highway legislation, 1,132 miles are in the state of Texas, and  881 miles of  I-69 are in Indiana, Kentucky, Tennessee, Mississippi, Arkansas and Louisiana combined. Texas, therefore, gets a whopping 56% of the total capital outlay for this highway project and the other six states will share the remaining 44% of the funding...Kevin
 

Texas:
TX_nagadoch.jpg
http://www.59masterplan.com/maps.htm
TXDOT
Parsons Brinckerhoff (prime consultant)
Contact: Larry Redden, PE
2777 Stemmons Fwy, Suite 1333, Dallas, Texas 75207
(214) 819-5969 or (214) 638-2893 (fax)
Contact: Rudy Rivera, PE
901 MoPac Expressway South, Bldg 2, St 595, Austin, TX 78746
(512) 328-1012 or (512) 328-3609 (fax)

Houston.jpg
http://web.archive.org/web/20011224033231/www.dot.state.tx.us/insdtdot/geodist/hou/mis/ih69/studymap.htm

TXDOT
http://www.i69texas.org/projectstatus/index.htm

various 'TX_*.jpg' images
http://www.i69texas.org/

TX_houston_highres.jpg
http://www.texasfreeway.com/statewide/i69/i69.shtml#houston
"Based on news reports, I think there is a very high probability that the route using the northern and western Grand Parkway (SH 99) will be selected. The map also shows a new spur to the existing section of the Grand Parkway between US59 and I-10 on the southwest side. (The existing SH99 is the eastern alternative shown and is less direct than the western alternative.) Estimated cost for this route is $1.96 billion. Ouch!!!"
  see also:
http://www.texasfreeway.com/houston/new_freeway/grand_parkway_13_dec_00.shtml
"The proposed I-69 route would coincide with the proposed Grand Parkway segments E, F and G. It also would include segment D, between the Katy and Southwest freeways, the only part of the loop to be built so far.

Louisiana:

Shreveport.jpg

NB - shreveport.jpg shows a label which says "Corridor "G"" but this is actually the preferred corridor e.
http://labudget.lsu.edu/corridors.htm
 

Arkansas:

SW_AR.jpg
http://i-69.dina.org/maps.html

Timothy J. Smith, Project Manager

Michael Baker Jr., Inc.
Petroleum Square II
1324 North Hearne, Suite 255
Shreveport, LA 71107
Phone: 318-222-8110
Fax: 318-222-8102
Email:tjsmith@mbakercorp.com

NB - from:
http://www.i69info.com/shr-mem.html#siu14

"SIU 14: Haughton to El Dorado
From Haughton, Louisiana, I-69 will probably be built on a new alignment towards Haynesville. From Haynesville, the freeway will enter Arkansas and likely follow Arkansas 15 northeast to the U.S. 82 southern bypass of El Dorado. It may bypass El Dorado to the southeast (along the existing U.S. 82 freeway bypass) or to the northwest (which would create a freeway/Super 2 loop around the city)."
 

Mississippi:

http://www.i69info.com/shr-mem.html#siu11

NW_MS.jpg
http://www.msdoti69.com/
MDOT

NW_MS.pdf
http://www.msdoti69.com/pdf/Corridor-transp_7_10_bigmaps.pdf
MDOT
 

Tennessee:

TN_dyers_fulton_KY.jpg
TN_mill_dyers.jpg
TN_Hernan_MS_mill.jpg
http://www.tdot.state.tn.us/information-office/I69/default.htm
 

Kentucky:

W_KY.jpg
http://www.thinkwestkentucky.com/roads/images/roads-fig2.jpg
KYDOT

KY_NW.jpg
http://www.kytc.state.ky.us/planning/pl-projects/projects/I-69/I-69.shtm
KYDOT

Indiana:

Eville.jpg
http://www.i69in-ky.com/files/November%20Revised%20Level%202%20Study%20Corridors.pdf

Evansville Urban Transportation Study
Civic Center Room 316
1 N.W. Martin Luther King Blvd.
Evansville, IN 47708-1833
Phone:(812)436-7833

Statement of Purpose and Need (From the Feb. 7, 2000 "I-69 Corridor 18 Special Environmental Study")
I-69 is and integral part of High Priority Corridor 18 across mid-America. Corridor 18 originated with the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA) where the U.S. Congress designated certain highway corridors of national significance to be included in the National Highway System. The corridor now has been defined by Congress to extend from Port Huron, Michigan at the Canadian border. Corridor 18 incorporates the following elements:
Existing I-69 from Port Huron, Michigan/Sarnia, Ontario, Canada to Indianapolis.
Existing I-94 from Port Huron through Detroit (including the Ambassador Bridge interchange) to Chicago, Illinois.
A new Interstate route (I-69) from Indianapolis to the Lower Rio Grande Valley (LRGV) serving the following:
Evansville, Indiana
Memphis, Tennessee
Shreveport/Bossier City, Louisiana
Houston, Texas
The Southeast Arkansas I-69 Connector from Pine Bluff, Arkansas to the I-69 Corridor identified in the Special Issues Study in the vicinity of Monticell, Arkansas.
In the Lower Rio Grande Valley:
US 77 from the Mexican border at Brownsville to US 59 in Victoria, Texas.
US 281 from the Mexican border at McAllen to I-37, then following US 59 to Victoria, Texas.
The Corpus Christi Northside Highway and Rail Corridor from the intersection of US 77 and I-37 to US 181.
FM 511 from US 77 to the Port of Brownsville