U.S. Department
of Transportation
Federal Highway
Administration

Associate Administrator
John Baxter
202-366-9494
john.baxter@dot.gov
www.fhwa.dot.gov/flh/

Federal Lands Highway
provides planning,
design, and engineering
services to support the
highways and bridges
that provide access to
and within federally
owned lands.

Federal Lands Divisions

Central
Federal Lands

Central Federal Lands

Division Engineer
Ricardo Suarez
720-963-3448
ricardo.suarez@fhwa.
dot.gov
www.cflhd.gov

September 2007
See FLH website for sources

Fact Sheet

South Dakota FLHP

SD FLHP road miles: 9,112 Funding Authorized FY 98 – 07: $154,010,000 Federal land acreage as percentage of total state area: 26%* SD population: 781,919
National Park Service (7 units) U.S. Forest Service (4) Bureau of Indian Affairs/ Tribal Governments (8) U.S. Fish and Wildlife Service (8) This percentage includes Federal lands that are not part of the FLHP core program and not depicted on the map

A photo of South Dakota State Highway (SH) 87 bridge The Federal Lands Highway Program in South Dakota. South Dakota State Highway (SH) 87, which travels through Wind Cave National Park, includes two bridges listed on the National Register of Historic Places. Over time these unique bridges, constructed in 1929 and 1930, became deficient in their deck surfacing, structure, and guardrails.

In 2003, Central Federal Lands Highway Division (CFLHD), in partnership with the National Park Service (NPS), began work on SH 87 improvements using context sensitive solutions. In 2007, a $4.8 million dollar contract was authorized for the rehabilitation of 4.2 miles of SH 87 and the two bridges using Park Roads and Parkways Program funds. Bridge improvements addressed structural integrity, travel surfaces and guardrails. CFLHD utilized a multidisciplinary design process to address aesthetic, historical, and environmental concerns, which resulted in the preservation of the bridges while incorporating current design and safety factors. As part of the environmental process, CFLHD consulted with local Native American tribes. The guard rail system was designed by NPS and CFLHD in consultation with the South Dakota State Historic Preservation Office. The original bridge abutments and piers remained untouched. A slight adjustment to the northern alignment of the roadway was made by extending the centerline of the approach roadway and excavating protruding bedrock in a manner to maintain the natural stone appearance.

Download the South Dakota State FLHP Fact Sheet

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