Current Highway Projects


Starting Intersection:Story Town Road
Ending Intersection:CTH D
Dates: 4/15/2016 to Early November, 2016
Project Information

CTH A between Story Town Road and CTH D has been posted for a 20 ton weight limit until the culvert just west of Story Town Road is replaced at the end of the summer.  The roadway has been reduced to one-lane at the location of the culvert with stop signs at each end to control traffic.

If you have questions please contact Greggar Petersen, Highway Engineer, at 608-266-9081 or

Information updated on 4/18/2016


Starting Intersection:STH 19
Ending Intersection:Egre Road
Dates: 4/12/2016 to Mid November, 2016
Project Information

Weekly Schedule

IMPORTANT CHANGE TO TRAFFIC: Starting May 31st, the road closure area will be increased to include the section from Stonehaven Drive to Egre Road.  The entire road closure area will now be from 1 block north of State Road 19 to Egre Road.  Only driveways that have direct access onto CTH C will be allowed to travel on this section of roadway.  Access to subdivision streets in this area will no longer be allowed from CTH C.

CTH C reconstruction is scheduled to begin April 11th and continue into late fall.  At the completion of construction there will be a new asphalt pavement, on street bike lanes, a multi-use path between STH 19 and Stonehaven Drive and better pedestrian access across STH 19. 

During construction CTH C will be closed to thru traffic but open to local traffic between Egre Road and STH 19.  The posted detour route will be on the following highways:  CTH V, CTH N, USH 18/151 and STH 19.  A map of the detour route and a detailed map of the construction zone is attached.

The construction will be broken into three main sections as described below. 

STH 19 to Whytecliff Way - Existing pavement will be milled and resurfaced and a multi-use path constructed on the east side of the roadway.  Crosswalk and signal improvements will be made at the STH 19 intersection to improve pedestrian and bike access across STH 19.  This section will be kept open to traffic for the duration of the project to allow access to the subdivision west of the CTH C and to the southernmost QBE entrance. 

Whytecliff Way to Stonehaven Drive - The road will be reconstructed and widened to a 4-lane urban section that includes the following items:  storm sewer, four 11-foot driving lanes, two 5-foot bike lanes, concrete curb & gutter and a multi-use path along the east side of the road.  Traffic will be limited to residence and business traffic needing direct access to the highway in this section.  No thru traffic will be allowed in this area.

Stonehaven Drive to Egre Road - The existing 22-foot wide pavement will be pulverized in place and a new 32-foot wide hot mix pavement will be constructed.  There will be two 11-foot driving lanes with 5-foot paved shoulders.  The Egre Road intersection will be improved by the addition of turn lanes. Traffic will be limited to residence and business traffic needing direct access to the highway in this section.  No thru traffic will be allowed in this area. . 

If you have any questions about construction please contact Greggar Petersen at (608) 266-9081.  If Greggar is not available and you need immediate assistance you can contact our main office at (608) 266-4011.

Questions related to City of Sun Prairie services should be directed to Daryl Severson, City Engineer (608) 825-1170.



Information updated on 5/24/2016


Starting Intersection:Pleasant Valley Road
Ending Intersection:CTH FF
Dates: 5/17/2016 to Late May, 2016
Project Information

The CTH F bridge located approximately 1/4 mile east of CTH FF will be under construction for approximately 2 weeks starting May 17th.  The road will remain open during construction but the bridge area will be reduced to one lane.  Traffic will be controlled by stop signs at each end of the bridge.

If you have questions please contact Greggar Petersen, Highway Engineer, at 608-266-9081 or


Information updated on 5/23/2016


CTH MN "Broadhead St"
Starting Intersection:Marsh Road
Ending Intersection:Holscher Road
Dates: 5/09/2016 to Early August, 2016
Project Information

CTH MN will be reconstructed under a joint construction agreement between Dane County and the Village of McFarland.  The construction includes watermain installation, storm sewer, an urban roadway that includes 2-11 foot driving lanes , 2-5 foot bike lanes curb and gutter and sidewalk.  Between Marsh Rd and Alben Street the bike lanes will be 4-feet and will be adjacent to 7-foot parking lanes.

If you have any questions about this project please contact the Village of McFarland Public Works office at (608) 838-7287.  

Information updated on 4/23/2016


Starting Intersection:CTH S
Ending Intersection:Bourbon Rd
Dates: Mid June, 2016 to Mid October, 2016
Project Information

CTH P construction is a pavement replacement project which will include improvements to the intersections of CTH P with CTH S, Observatory Road, Pine Hill Road and Stagecoach Road, guardrail installations and the provision of bicycle improvements. Major items of work include excavation, pulverize and relay, crushed aggregate, HMA pavement, concrete curb and gutter, culverts, storm sewer, guardrail.

The construction is scheduled to begin June 20, 2016 and be completed by October 15, 2016.

CTH P will be closed to thru traffic throughout the duration of the construction project.  One lane of traffic in each direction will be maintained on CTH P and all side roads throughout the project duration.

A detour route will be posted for CTH P utilizing CTH S, USH 12/18 and USH 14.  A detour map is attached.

If you have questions regarding this project please contact Matt Rice, Dane County Highway Engineer, at 608-266-4037 or

Information updated on 3/30/2016


Starting Intersection:CTH CV "N Main St"
Ending Intersection:N Stevenson St
Dates: 4/15/2016 to Early May, 2016
Project Information

CTH V will be closed for approximately 4 weeks starting April 15 and extending to May 6 while the Village of Deforest completes utility work.  During this phase of the project the Village will maintain a detour on local Streets. 

After Village Utility work is completed the road will be reopened until reconstruction of the Yahara River Bridge begins later in the summer. 

For more information regarding this project please visit the Village of Deforest's website at:{06466A62-2704-4DE2-AF08-7634AB2DA1F8}&DE={ECA43C0D-C7E4-4319-AA4F-64DC92D3EC6F}


Information updated on 5/23/2016


Starting Intersection:Various CTH's
Ending Intersection:Various CTH's
Dates: Early June, 2016 to Mid July, 2016
Project Information

The following County Trunk Highways will be sealcoated in 2016:

·         CTH A from STH 69 to CTH D

·         CTH A from CTH MM to USH 14

·         CTH K from CTH Q to CTH M

·         CTH K from STH 19 to CTH P

·         CTH T from Seminary Springs to Ridge Rd

·         STH 138 from USH 14 to USH 51

·         STH 14 from Cross Plains West Line to Mazomanie East Line

The sealcoat process consists of an asphalt emulsion seal on which an aggregate covering is placed.  The loose aggregate covering is rolled into the emulsion to provide a protective wearing surface and while the emulsion is curing excess loose aggregate material will remain on the roadway.  In general, the bulk of this material is swept off the road within 1-2 days of the sealcoats but motorists can expect to encounter some loose gravel for an extended period of time.

Please slow down while traveling on recently sealed roads or find alternate routes.  If you have specific questions about a roadway please call (608) 266-4011.

Information updated on 5/23/2016

Planned Highway Projects