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Woodbury County OKs lower speed limits on K‑29 and K‑45
Summary
The Woodbury County Board of Supervisors unanimously approved resolutions to lower posted speeds on K‑29 at Sergeant Bluff’s request and to set a reduced speed on K‑45 in the design for the Southbridge Interchange.
The Woodbury County Board of Supervisors voted unanimously Tuesday to approve two resolutions lowering posted speeds on county highways: one on K‑29 at the request of the City of Sergeant Bluff and a second to set a reduced speed for a section of K‑45 once the Southbridge Interchange project is complete.
The measures were introduced during the board’s regular meeting after Aaron Lincoln, city administrator for Sergeant Bluff, described residential development and school facilities along Old Lakeport (referred to in the record as K‑29) and said the city council on March 25 recommended posting the road at 35 mph. "We had some plans in the future, the school district did," Lincoln said, describing new ball fields and nearby housing that prompted the request. Supervisor Bittinger moved the resolution to lower the speed limit on K‑29; Supervisor Carper seconded the motion. The board approved it 4–0.
The board then approved a second resolution to lower the speed limit on K‑45 in the design for the Southbridge Interchange. County staff explained the design team and Iowa Department of Transportation work will consider a posted 45 mph limit on the section in question while designing the roadway for about 50 mph speeds, which affects lane widths and turn-lane requirements. County staff said a signal will be installed at the new 230 Fifth Street intersection because of nearby railroad tracks and that the lower posted speed will help approaching traffic recognize the intersection. Supervisor Bittinger moved the resolution to set the lower speed limit; Supervisor Nelson seconded. The motion passed 4–0.
Board members noted the speed changes are tied to construction timelines and that posted limits would not change until the interchange and associated signal are completed. Supervisor Dietrich observed development in Sergeant Bluff has increased traffic in the area. The record shows Supervisor Ang was out of the country and not present for the votes.
The resolutions were signed after the meeting; the board’s actions were recorded as unanimous votes of the four supervisors present. No implementation date for the new posted limits was specified in the meeting record; staff said the K‑45 change would likely not be visible until construction is finished.
