US 51 corridor, south segment

Home | News | About Us | Research & Library | A-Z Index

US 51 corridor

South segment

Schedule

Maps

Environmental documents

Public involvement

Contacts

US 51 corridor, south segment - maps

Study overview/location

The US 51 corridor, south segment, extends 18.4 miles from I-39/90 east of the city of Stoughton to US 12/18 (Madison South Beltline).

US 51 corridor, south segment overview map.

The following documents are in Adobe PDF format.
(Note: Some files are large and may take longer to download depending on individual connection speeds. Users may need to zoom in to see details.)

Study overview/location

May 19 and 20, 2009 PIM

Crash summary 2004 - 2006

Alternatives

No build - No action would be taken beyond normal roadway maintenance.
Alternative A - Low build. US 51 safety improvements and addition of passing lanes.
Alternative B - Four-lane expansion of US 51 from Stoughton to McFarland. The potential interchange located at US 51 and County B east would be a north-south interchange (traffic wanting to travel on County B east would need to exit).
- Typical cross sections, pages 1-7 (345 KB)
- Stoughton, part 1 of 2 BCD (962 KB)
- Stoughton, part 2 of 2 BCD (981 KB)
- US 51 rural, part 1 of 4 (876 KB)
- US 51 rural, part 2 of 4 (899 KB)
- US 51 rural, part 3 of 4 (909 KB)
- US 51 rural, part 4 of 4 (871 KB)
- McFarland (287 KB)
Alternative B1 - Four-lane expansion of US 51 from Stoughton to McFarland. The potential interchange located at US 51 and County B east would be an east-west interchange (traffic wanting to travel south to downtown Stoughton would need to exit).
Note: This is the same design as alternative B except the Stoughton section differs.
- Stoughton, part 1 of 2 (945 KB)
- Stoughton, part 2 of 2 (972 KB)
Alternative C - Four-lane expansion of WIS 138 from Stoughton to Oregon plus US 51 safety improvements.
- Typical cross section, page 8 (345 KB)
- WIS 138, part 1 of 4 (966 KB)
- WIS 138, part 2 of 4 (920 KB)
- WIS 138, part 3 of 4 (917 KB)
- WIS 138, part 4 of 4 (981 KB)
Alternative D - Four-lane expansion of County N from County B east to I-39/90 plus US 51 safety improvements.
- Typical cross section, page 9 (345 KB)
- Part 1 of 4 (986 KB)
- Part 2 of 4 (772 KB)
- Part 3 of 4 (970 KB)
- Part 4 of 4 (981 KB)
Alternatives B, C, and D - Each includes the expansion to four lanes on County B from US 51 to County N along with the expansion to four lanes and relocation of County N on Skaalen and Pleasant Hill roads.
- Typical cross section, page 10 (345 KB)
- 4 lane around Stoughton (1 of 4) (951 KB)
- 4 lane around Stoughton (2 of 4) (947 KB)
- 4 lane around Stoughton (3 of 4) (887 KB)
- 4 lane around Stoughton (4 of 4) (923 KB)

Traffic volumes/operations

The analysis of existing and future operating characteristics of a roadway can be measured using Level of Service (LOS) to provide an indication of the ability of the roadway to satisfy both existing and future travel demand.

LOS is a quantitative measure of the quality of service of a transportation facility. The LOS measure is broken down into six letter grades, “A” through “F” with “A” being the best and “F” being the worst. LOS measure of D/E is considered the lowest acceptable rating for an intersection.

Return to top